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4 DHCP Relay

4.1 Configuration

The section describes how to forward the DHCP requests to another specific DHCP
server via DHCP relay. The DHCP servers may be on another network.

This section describes how to configure DHCP Relay setting including:



Relay Mode (Enabled and Disabled)



Relay Server IP Setting



Relay Information Mode (Enabled and Disabled)



Relay Information Mode Policy (Replace, Keep, and Drop)

Web Interface

To configure a DHCP Relay in the web interface:

Select “Enabled” in the Relay Mode of DHCP Relay Configuration.

Specify the Relay Server IP address.

Select “Enabled” in the Relay Information Mode of DHCP Relay
Configuration.

Specify Relay (Replace, Keep, and Drop) in the Relay Information Mode of
DHCP Relay Configuration.

Click “Apply”.

Figure 4-4.1: The DHCP Relay Statistics

Summary of Contents for MAXIINET VI3010

Page 1: ...Inc All rights reserved All brand and product names are trademarks or registered trademarks of their respective companies MaxiiNetTM VI3010 Operational Manual 10 Port Series PoE L2 Plus Managed Switch...

Page 2: ...is manual gives specific information on how to operate and use the management functions of the Vi3010 The manual is intended for use by network administrators who are responsible for operating and mai...

Page 3: ...to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates...

Page 4: ...ilege Level 19 2 4 IP 21 2 4 1 IPV4 21 2 4 2 IPV6 23 2 5 Syslog 24 2 5 1 Configuration 24 2 5 2 Log 25 2 5 3 Detailed Log 26 2 6 SNMP 27 2 6 1 System 27 2 6 2 Configuration 28 2 6 3 Communities 29 2 6...

Page 5: ...P Snooping 77 3 5 1 Basic Configuration 77 3 5 2 VLAN Configuration 79 3 5 3 Port Group Filtering 81 3 5 4 Status 83 3 5 5 Group Information 84 3 5 6 IPV4 SSM Information 85 3 6 MLD Snooping 87 3 6 1...

Page 6: ...Port Status 137 3 11 5 Private VLANs 139 3 11 6 MAC Based VLAN 141 3 11 6 1 Configuration 141 3 11 7 Protocol Based VLAN 144 3 12 Voice VLAN 149 3 12 1 Configuration 149 3 12 2 OUI 151 3 13 GARP 152...

Page 7: ...ty 193 3 22 UpnP 195 Chapter 4 Security 196 4 1 Source Guard 196 4 1 1 Configuration 196 4 1 2 Static Table 198 4 1 3 Dynamic Table 199 4 2 ARP Inspection 200 4 2 1 Configuration 200 4 2 2 Static Tabl...

Page 8: ...start 245 5 2 Firmware 246 5 2 1 Firmware Upgrade 246 5 2 2 Firmware Selection 247 5 3 Save Restore 249 5 3 1 Factory Defaults 249 5 3 2 Save Start 250 5 3 3 Save User 251 5 3 4 Restore User 252 5 4 E...

Page 9: ...width to deliver information and applications more effectively They provides the ideal combination of affordability and capabilities for entry level networking for the small business or enterprise app...

Page 10: ...168 1 100 The default username is admin and password should be left empty The first time logging in enter the default username and then click the Login button The Vi3010 supports a simple user managem...

Page 11: ...enables DHCP so you do not need to have a DHCP server to provide IP addresses to the switch The switch s default IP is 192 168 1 1 Figure 1 Login Page The server 192 168 20 15 at Vi3010 requires a use...

Page 12: ...Firmware Version Hardware Mechanical Version Serial Number Host IP Address Host Mac Address Device Port RAM Size and Flash Size With this information you will know the software version used MAC addres...

Page 13: ...is switch Hardware Mechanical version The version of hardware and mechanical The figure before the hyphen is the version of electronic hardware The one after the hyphen is the version of mechanical Se...

Page 14: ...contact this person The allowed string length is 0 to 255 and the allowed content is the ASCII characters from 32 to 126 System Name An administratively assigned name for this managed node By conventi...

Page 15: ...tomatic options to set the system time via NTP Manual setting is simple All you have to input is the Year Month Day Hour Minute and Second within the valid value range indicated in each item Web Inter...

Page 16: ...r And when the time passes over the ending time the system time will be decreased one hour after one minute at the time since it passed over The valid configurable daylight saving time is 5 to 5 step...

Page 17: ...he switch supports configurable time zone from 12 to 13 in 1 hour steps Default Time Zone 8 Hrs Web Interface To configure Time in the web interface 1 Click SYSTEM NTP 2 Specify the Time parameter in...

Page 18: ...istrator guest identity in the field of Authorization in advance before configuring the username and password Only one administrator is allowed to exist and cannot be deleted In addition up to 4 guest...

Page 19: ...5 it can access all groups e g Level 15 is granted the full control of the device But others value need to refer to each group privilege level User s privilege should be same or greater than the group...

Page 20: ...DP MED MAC Table MRP MVR MVRP Maintenance Mirroring POE Ports Private VLANs QoS SMTP SNMP Security Spanning Tree System Trap Event VCL VLANs Voice VLAN and Privilege Levels from 1 to 15 Web Interface...

Page 21: ...IP source guard IP Everything except ping Port Everything except VeriPHY Diagnostics ping and VeriPHY Maintenance CLI System Reboot System Restore Default System Password Configuration Save Configura...

Page 22: ...ubstantial movement to adopt a new version of the Internet Protocol IPv6 which would have 128 bits Internet Protocol addresses This number can be represented roughly by a three with thirty nine zeroes...

Page 23: ...DNS lookup IP Address Provides the IP address of this switch in dotted decimal notation IP Mask Provides the IP mask of this switch dotted decimal notation IP Gateway Provides the IP address of the r...

Page 24: ...conds the total time needed to complete auto configuration can be significantly longer Address Provides the IPv6 address of this switch IPv6 address is in 128 bit records represented as eight fields o...

Page 25: ...ble it 4 Click Apply Figure 2 5 1 The System Log Configuration Server Mode Indicates the server mode operation When the mode operation is enabled the syslog message will send out to syslog server The...

Page 26: ...Level Level of the system log entry The following level types are supported Information level of the system log Warning Warning level of the system log Error Error level of the system log All All leve...

Page 27: ...n the web interface 1 Click Syslog Detailed Log 2 Display the log information Figure 2 5 3 The Detailed System Log Information ID The ID 1 of the system log entry Message The detailed message of the s...

Page 28: ...Trap Host IP Address Trap and all MIB counters will be ignored This section describes how to configure SNMP System on the switch This function is used to configure SNMP settings including community na...

Page 29: ...string will be associated with SNMPv3 communities table It provides more flexibility to configure the security name than a SNMPv1 or SNMPv2c community string In addition to the community string a par...

Page 30: ...6 2 The SNMPv1 v2 Communities Security Configuration Delete Check to delete the entry It will be deleted during the next save Community Indicates the community access string to permit access to SNMPv...

Page 31: ...he allowed content is ASCII characters from 33 to 126 Security Level Indicates the security model that this entry should belong to Possible security models are NoAuth NoPriv No authentication and no p...

Page 32: ...to 40 The allowed content is ASCII characters from 33 to 126 Privacy Protocol Indicates the privacy protocol that this entry should belong to Possible privacy protocols are DES An optional flag to ind...

Page 33: ...MP Groups Configuration Delete Check to delete the entry It will be deleted during the next save Security Model Indicates the security model that this entry should belong to Possible security models a...

Page 34: ...ave View Name A string identifying the view name that this entry should belong to The allowed string length is 1 to 32 and the allowed content is ASCII characters from 33 to 126 View Type Indicates th...

Page 35: ...me A string identifying the group name that this entry should belong to The allowed string length is 1 to 32 and the allowed content is ASCII characters from 33 to 126 Security Model Indicates the sec...

Page 36: ...lowed content is ASCII characters from 33 to 126 Write View Name The name of the MIB view defines the MIB objects so this request may potentially set new values The allowed string length is 1 to 32 an...

Page 37: ...hosts information table 3 Choose an entry to display and modify the detail parameters or click the delete button to delete the trap hosts entry Figure 2 6 7 The SNMP Trap Host Configuration Delete Che...

Page 38: ...thentication and no privacy Auth NoPriv Authentication and no privacy Auth Priv Authentication and privacy Authentication Protocol You can choose MD5 or SHA for authentication Authentication Password...

Page 39: ...This chapter describes how to view the current port configuration and how to configure ports to non default settings including Linkup Linkdown Speed Current and Configured Flow Control Current Rx Cur...

Page 40: ...re obeyed and the Current Tx column indicates whether pause frames on the port are transmitted The Rx and Tx settings are determined by the result of the last Auto Negotiation Check the configured col...

Page 41: ...pplication Web Interface To configure a port description in the web interface 1 Click Configuration Port and then Port Description 2 Specify the detailed port alias or description an alphanumeric stri...

Page 42: ...o auto refresh then you need to evoke the Auto Refresh 3 Click Refresh to refresh the port statistics or clear all information by pressing Clear Figure 3 1 3 The Port Statistics Overview Port The logi...

Page 43: ...led port statistic overview 3 If you want to auto refresh the information then you need to evoke the Auto Refresh 4 Click Refresh to refresh the port detailed statistics or clear all information by pr...

Page 44: ...s congestion Rx CRC Alignment The number of frames received with CRC or alignment errors Rx Undersize The number of short 1 frames received with valid CRC Rx Oversize The number of long 2 frames recei...

Page 45: ...refresh the information then you need to evoke the Auto Refresh 3 Click Refresh to refresh the queuing counters or clear all information by pressing Clear Figure 3 1 5 The Queuing Counters Overview P...

Page 46: ...SC ST LC and so on Fiber Type Displays the fiber mode e g Multi Mode or Single Mode Tx Central Wavelength Displays the fiber optical transmitting central wavelength e g 850nm 1310nm 1550nm and so on B...

Page 47: ...Bias mA Shows the Bias current of SFP module Mon2 TX PWR Shows the transmit power of SFP module Mon3 RX PWR Shows the receiver power of SFP module NOTE Only SFP modules that are UL and CDRH Certified...

Page 48: ...it s queued until 3000 bytes of data are ready to be transmitted To avoid a large delay in case there is data less than 3000 bytes waiting to be transmitted data are always transmitted after 48 us giv...

Page 49: ...page header Port The switch port number of the logical EEE port EEE Enabled Controls whether EEE is enabled for this switch port EEE Urgent Queues Queues set will activate transmission of frames as s...

Page 50: ...to determine what type of ACL policy you will be working with The section describes how to configure the ACL parameters ACE of the each switch port These parameters will affect frames received on a po...

Page 51: ...eration of this port The allowed values are Enabled Frames received on the port are stored in the system log Disabled Frames received on the port are not logged The default value is Disabled Please no...

Page 52: ...700 3 Scroll the Unit to pps or kbps 4 Click Save to save the setting 5 If you want to cancel the setting click the reset button to revert back to previously saved values Figure 3 2 2 The ACL Rate Lim...

Page 53: ...h Click on the lowest plus sign to add a new ACE to the list The reserved ACEs used for internal protocol cannot be edited or deleted The order sequence cannot be changed and the priority is highest W...

Page 54: ...that hits this ACE is granted permission for the ACE operation Deny The frame that hits this ACE is dropped Rate Limiter Indicates the rate limiter number of the ACE The allowed range is 1 to 16 When...

Page 55: ...ecifies the tag priority for this ACE A frame that hits this ACE matches this tag priority The allowed number range is 0 to 7 The value Any means that no tag priority is specified tag priority is don...

Page 56: ...e EType The ACE will match Ethernet Type frames Note that an Ethernet Type based ACE will not get matched by IP and ARP frames ARP The ACE will match ARP RARP frames IPv4 The ACE will match all IPv4 f...

Page 57: ...first packet that matched the specific ACE to CPU Counter The counter indicates the number of times the ACE was hit by a frame Conflict Indicates the hardware status of the specific ACE The specific A...

Page 58: ...d the bandwidth aggregation Ports using static trunk as their trunk method can choose their unique static Group ID to form a logic trunked port The benefit of using Static Trunk method is that a port...

Page 59: ...the IP address or uncheck to disable By default the IP Address is enabled TCP UDP Port Number The TCP UDP port number can be used to calculate the destination port for the frame Check to enable the us...

Page 60: ...rations A LACP trunk group with more than one ready member ports is a Real Trunked group A LACP trunk group with only one or less than one ready member ports is not a Real Trunked group Web Interface...

Page 61: ...rred by the port ranging from 1 to 65535 The auto setting will set the key as appropriate by the physical link speed 10Mb 1 100Mb 2 1 GB 3 By using the Specific setting a user defined value can be ent...

Page 62: ...to evoke the Auto Refresh 3 Click Refresh to refresh the LACP System Status Figure 3 3 2 2 The LACP System Status Aggr ID The aggregation ID associated with this aggregation instance For LLAG the id i...

Page 63: ...Figure 3 3 2 3 The LACP Status Port The switch port number LACP Yes means that LACP is enabled and the port link is up No means that LACP is not enabled or that the port link is down Backup means that...

Page 64: ...ation LACP Port Statistics 2 If you want to auto refresh the information then you need to evoke the Auto refresh 3 Click Refresh to refresh the LACP Statistics Figure 3 3 2 4 The LACP Statistics Port...

Page 65: ...oot ports and designated ports and disables all other ports Therefore the network packets are only forwarded between root ports and designated ports to eliminate any possible network loops Once a stab...

Page 66: ...tted by the Bridge when it is the Root Bridge Valid values are in the range 6 to 40 seconds and MaxAge must be FwdDelay 1 2 Maximum Hop Count This defines the initial value of remaining Hops for MSTI...

Page 67: ...certain time If recovery is not enabled ports have to be disabled and re enabled for normal STP operation The condition is also cleared by a system reboot Port Error Recovery Timeout The time to pass...

Page 68: ...STI should be left empty e g not having any VLANs mapped to it This section allows the user to inspect and change the current STP MSTI bridge instance priority configuration Web Interface To configure...

Page 69: ...he name is at most 32 characters Configuration Revision The revision of the MSTI configuration named above This must be an integer between 0 and 65535 MSTI Mapping MSTI The bridge instance The CIST is...

Page 70: ...riority configurations Web Interface To configure the Spanning Tree MSTI Priorities parameters in the web interface 1 Click Configuration Spanning Tree MSTI Priorities 2 Scroll the Priority maximum is...

Page 71: ...t back to previously saved values Figure 3 4 4 The STP CIST Port Configuration Port The switch port number of the logical STP port STP Enabled Controls whether STP is enabled on this switch port Path...

Page 72: ...nd topology changes to other ports If set it can cause temporary loss of connectivity after changes in a spanning tree s active topology as a result of persistently incorrect learned station location...

Page 73: ...port settings for physical and aggregated ports The aggregation settings are stack global Web Interface To configure the Spanning Tree MSTI Port Configuration parameters in the web interface 1 Click...

Page 74: ...a user defined value can be entered The path cost is used when establishing the active topology of the network Lower path cost ports are chosen as forwarding ports in favor of higher path cost ports...

Page 75: ...mation then you need to evoke the Auto Refresh 3 Click Refresh to refresh the STP Bridges Figure 3 4 6 The STP Bridges status MSTI The Bridge Instance This is also a link to the STP Detailed Bridge St...

Page 76: ...o auto refresh the information then you need to evoke the Auto Refresh 3 Click Refresh to refresh the STP Bridges Figure 3 4 7 The STP Port status Port The switch port number of the logical STP port C...

Page 77: ...ick Refresh to refresh the STP Bridges Figure 3 4 8 The STP Statistics Port The switch port number of the logical STP port MSTP The number of MSTP Configuration BPDU s received transmitted on the port...

Page 78: ...specified IP multicast group before The packets will be discarded by the IGMP Snooping if the user transmits multicast packets to the multicast group that had not been built up in advance IGMP mode en...

Page 79: ...an be used to avoid forwarding unnecessary join and leave messages to the router side Router Port Specifies which ports act as router ports A router port is a port on the Ethernet switch that leads to...

Page 80: ...set button to revert back to previously saved values Figure 3 5 2 The IGMP Snooping VLAN Configuration VLAN ID This displays the VLAN ID of the entry Snooping Enabled Enables the per VLAN IGMP Snoopin...

Page 81: ...itions of a host s initial report of membership in a group The allowed range is 0 to 31744 seconds The default unsolicited report interval is 1 second Buttons Apply Click to apply changes Reset Click...

Page 82: ...If an IGMP profile denies access to a multicast group on a switch port the IGMP join report requesting the stream of IP multicast traffic is dropped and the port is not allowed to receive IP multicast...

Page 83: ...the next save Port To evoke the port enable the IGMP Snooping Port Group Filtering function Filtering Groups The IP Multicast Group that will be filtered Buttons Apply Click Apply to save changes Rese...

Page 84: ...f the entry Querier Version Working Querier Version currently Host Version Current Working Host Version Querier Status Shows the Querier status is ACTIVE or IDLE Queries Transmitted The number of Tran...

Page 85: ...u need to evoke the Auto Refresh 3 Click Refresh to refresh a entry of the IGMP Snooping Groups Information 4 Click or to move to previous or next entry Figure 3 5 5 The IGMP Snooping Groups Informati...

Page 86: ...SSM does not require group address allocation within the network only within each source host Different applications running on the same source host must use different SSM groups Different applicatio...

Page 87: ...y to allow continuous refresh with the same start address The switch will use the last entry of the currently displayed table as a basis for the next lookup When the end is reached the text No More En...

Page 88: ...ooperates to determine what multicast address to use This is a function of the application software not of MLD When MLD snooping is enabled on a VLAN the switch acts to minimize unnecessary multicast...

Page 89: ...e groups in the address using IPv6 Address range Proxy Enabled Enables MLD Proxy This feature can be used to avoid forwarding unnecessary join and leave messages to the router side Port The Port index...

Page 90: ...Enables to limit the number of multicast groups to which a switch port can belong Buttons Apply Click Apply to save changes Reset Click Reset to undo any changes made locally and revert to previously...

Page 91: ...entry Snooping Enabled Enables the per VLAN MLD Snooping Only up to 32 VLANs can be selected MLD Querier A router sends MLD Query messages onto a particular link This Router is called the Querier It e...

Page 92: ...allowed range is 0 to 31744 in tenths of seconds The default last listener query interval is 10 in tenths of seconds 1 second URI Unsolicited Report Interval The Unsolicited Report Interval is the tim...

Page 93: ...fy the Filtering Groups with entries per page 4 Click Save to save the setting 5 If you want to cancel the setting click the reset button to revert back to previously saved values Figure 3 6 3 The MLD...

Page 94: ...oping Status VLAN ID The VLAN ID of the entry Querier Version Working Querier Version currently Host Version Current working Host Version Querier Status Shows the Querier status is ACTIVE or IDLE Quer...

Page 95: ...rom the MLD Group table The default is 20 and can be selected through the Entries Per Page input field During the initial visit the web page will show the first 20 entries from the beginning of the ML...

Page 96: ...ting point in the MLDv2 Information Table Web Interface To display the MLDv2 IPv6 SSM Information in the web interface 1 Click Configuration MLD Snooping IPv6 SSM Information 2 If you want to auto ref...

Page 97: ...Switch A to join the appropriate multicast Uplink ports that send and receive multicast data to and from the multicast VLAN are called MVR source ports The section describes how the user could set the...

Page 98: ...es the Multicast VLAN ID Mode Enables MVR on the port Type Specifies the MVR port type on the port Immediate Leave Enables the fast leave on the port Buttons Apply Click Apply to save changes Reset Cl...

Page 99: ...e Add New Allow Group button 3 Evoke the Port No Start Address and End Address 4 To click the Apply to apply the configuration of MVR Port Group Allow Table Figure 3 7 2 The MVR Groups Information Del...

Page 100: ...auto refresh the information then you need to evoke the Auto Refresh 3 To Click the Refresh to refresh a entry of the MVR Groups Information 4 Click or to move to previous or next entry Figure 3 7 2...

Page 101: ...Refresh to refresh a entry of the MVR Statistics Information 4 Click or to move to previous or next entry Figure 3 7 4 The MVR Statistics Information VLAN ID The Multicast VLAN ID V1 Reports Received...

Page 102: ...a IEEE 802 local area network principally wired Ethernet The protocol is formally referred to by the IEEE as Station and Media Access Control Connectivity Discovery specified in standards document IE...

Page 103: ...P Port Configuration The LLDP port settings relate to the currently selected stack unit as reflected by the page header Port The switch port number of the logical LLDP port Mode Select LLDP mode Rx on...

Page 104: ...information isn t removed immediately It gets removed when the hold time is exceeded Port Descr Optional TLV When checked the port description is included in LLDP information transmitted Sys Name Opti...

Page 105: ...s LLDP frames Remote Port ID The remote port ID is the identification of the neighbor port System Name System mame is the name advertised by the neighbor unit Port Description Port description is the...

Page 106: ...105 Auto refresh Check Auto Refresh so the device can refresh the information automatically Upper right icon Refresh Click Refresh to refresh the LLDP neighbors information manually...

Page 107: ...rnet PoE end points Inventory management allows network administrators to track their network devices and determine their characteristics manufacturer software and hardware versions serial or asset nu...

Page 108: ...the neighbors receiving the LLDP frame With fast start repeat count it is possible to specify the number of times the fast start transmission would be repeated The recommended value is 4 times when an...

Page 109: ...I letters Example DK DE or US State National subdivisions state canton region province prefecture County County parish gun Japan district City City township shi Japan Example Copenhagen City district...

Page 110: ...video services The network policy attributes advertised are Layer 2 VLAN ID IEEE 802 1Q 2003 Layer 2 priority value IEEE 802 1D 2004 Layer 3 Diffserv code point DSCP value IETF RFC 2474 This network p...

Page 111: ...gged data specific VLAN When a network policy is defined for use with an untagged VLAN see tagged flag below then the L2 priority field is ignored and only the DSCP value has relevance Video Conferenc...

Page 112: ...as defined in RFC 2475 Adding a new policy Click to add a new policy Specify the application type Tag VLAN ID L2 Priority and DSCP for the new policy Click Save Port Policies Configuration Every port...

Page 113: ...ces A LLDP MED network connectivity device is a LAN access device based on any of the following technologies 1 LAN Switch Router 2 IEEE 802 1 Bridge 3 IEEE 802 3 Repeater included for historical reaso...

Page 114: ...imited to Voice Media Gateways Conference Bridges Media Servers and similar products Discovery services defined in this class include media type specific network layer policy discovery LLDP MED Commun...

Page 115: ...deo services that require specific network policy treatment Video applications relying on TCP with buffering would not be an intended use of this application type 9 Video Signaling For use in network...

Page 116: ...an hold off sending data after deassertion of LPI Rx Tw The link partner s time that receiver would like the transmitter to hold off allowing time for the receiver to wake from sleep Fallback Receive...

Page 117: ...partner The resolved value that is the actual Tx wakeup time used for this link based on EEE information exchanged via LLDP EEE activated Shows if the switch and the link partner have agreed upon whic...

Page 118: ...ed It shows the time when the last entry was last deleted or added It also shows the time elapsed since the last change was detected Total Neighbors Entries Added Shows the number of new entries added...

Page 119: ...ages out TLVs Discarded Each LLDP frame can contain multiple pieces of information known as TLVs TLV is short for Type Length Value If a TLV is malformed it is counted and discarded TLVs Unrecognized...

Page 120: ...how all PoE Supply Watts Web Interface To configure Power over Ethernet in the web interface 1 Click configuration 2 Specify the Reserved Power determined and Power Management Mode Specify the PoE or...

Page 121: ...ty represents the ports priority There are three levels of power priority named Low High and Critical The priority is used in the case where the remote devices require more power than the power supply...

Page 122: ...fied by 802 3 at af protocol The PD class shown is a reference It is not related to the actual PD power requested The PD class that the switch read from PD might be inconsistent with the PD specificat...

Page 123: ...Power Allocated The Power Allocated shows the amount of power the switch has allocated for the PD Power Used The Power Used shows how much power the PD currently is using Current Used The Power Used...

Page 124: ...change NOTE There might be a 15 seconds gap between the delay time and actual time During this gap the switch implements the action of PD detection by PoE and configuration loading Meanwhile the PD p...

Page 125: ...nable the Ping Check function 3 Specify the PD s IP address checking interval retry time failure action and reboot time 4 Click Apply to apply the change Figure 3 9 4 The POE Auto Checking CAUTION Whe...

Page 126: ...E port is unable to ping the PD it will retry to send detection again After the third try it will trigger failure action Failure Log Failure loggings counter Failure Action The action when the third f...

Page 127: ...in the web interface 1 Click Configuration PoE and Scheduling 2 Select the local port and enable 3 Select time and day for the supply power 4 Click Apply to apply the change Figure 3 9 5 The POE Sched...

Page 128: ...MAC address SMAC address It shows the MAC address of the equipment sending the frame The SMAC address is used by the switch to automatically update the MAC table with these dynamic MAC addresses Dynam...

Page 129: ...out another module is in control of the mode and cannot be changed by the user An example of such module is the MAC Based Authentication under 802 1X Each port can do learning based upon the followin...

Page 130: ...l be deleted during the next save VLAN ID The VLAN ID of the entry MAC Address The MAC address of the entry Port Members Checkmarks indicate which ports are members of the entry Check or uncheck as ne...

Page 131: ...MAC Address Table information MAC Table Columns Switch stack only The stack unit where the entry is learned Type Indicates whether the entry is a static or a dynamic entry VLAN The VLAN ID of the ent...

Page 132: ...Ns are supported The user is allowed to add and delete VLANs and port members of each VLAN Web Interface To configure VLAN membership configuration in the web interface 1 Click VLAN membership Configu...

Page 133: ...ereafter presented on the other stack switch units but with no port members The check box is greyed out when VLAN is displayed on other stacked switches but user can add member ports to it A VLAN with...

Page 134: ...the web interface 1 Click VLAN Ports 2 Specify the VLAN Port Configuration parameters 3 Click Apply Figure 3 11 2 The VLAN Port Configuration Ethertype for Custom S ports This field specifies the Eth...

Page 135: ...g terminal work station If the port connect to VLAN aware devices the trunk link should be used e g switch connect to switch Hybrid link is used for more flexible application Hybrid If the tag of tagg...

Page 136: ...VLAN bridged network GVRP GARP VLAN Registration Protocol GVRP allows dynamic registration and deregistration of VLANs on ports on a VLAN bridged network Voice VLAN Voice VLAN is a VLAN configured spe...

Page 137: ...ership allows the frames classified to the VLAN ID to be forwarded on the respective VLAN member ports Auto refresh Check Auto Refresh so the device can refresh the information automatically Upper rig...

Page 138: ...e Port VLAN ID and tags are not removed C port is Customer Port S port is Service port Custom S port is S port with Custom TPID Ingress Filtering Shows the ingress filtering on a port This parameter a...

Page 139: ...conflict between user modules Auto refresh Check Auto Refresh so the device can refresh the information automatically Upper right icon Refresh Click Refresh to refresh the VLAN Port Status informatio...

Page 140: ...r of multiple Private VLANs Web Interface To configure Private VLAN configuration in the web interface 1 Click add new Private VLAN Membership 2 Specify the Private VLAN ID and Port Members 3 Click Ap...

Page 141: ...data packet based upon the destination address on the data packet Then the data packet is sent to the plurality of ports pursuant to the forwarding map generated based upon whether the ingress port w...

Page 142: ...to use the resources in the old VLAN On the other hand if Port A and Port B belong to the same VLAN after terminal devices access the network through Port B they will have access to the same resource...

Page 143: ...d Adding a New MAC based VLAN Click to add a new MAC based VLAN entry An empty row is added to the table and the MAC based VLAN entry can be configured as needed Any unicast MAC address can be configu...

Page 144: ...o display MAC based VLAN configured in the web interface 1 Click MAC based VLAN Status 2 Specify the Static NAS Combined 3 Display MAC based information Figure 3 11 6 2 The MAC based VLAN Membership S...

Page 145: ...P is a mechanism for multiplexing on networks using IEEE 802 2 LLC More protocols can be distinguished by the 8 bit 802 2 Service Access Point SAP fields SNAP supports identifying protocols by Etherne...

Page 146: ...ifferent sub values a OUI OUI Organizationally Unique Identifier is value in format of xx xx xx where each pair xx in string is a hexadecimal value ranges from 0x00 0xff b PID If the OUI is hexadecima...

Page 147: ...y Click Apply to save changes Reset Click Reset to undo any changes made locally and revert to previously saved values Upper right icon Refresh Click Refresh to refresh the Protocol Group Mapping info...

Page 148: ...ial character is allowed The group name you re trying to map to a VLAN must be present in Protocol to Group mapping table and must not be previously used by any other existing mapping entry on this pa...

Page 149: ...set to undo any changes made locally and revert to previously saved values Auto refresh Check Auto Refresh so the device can refresh the information automatically Upper right icon Refresh Click Refres...

Page 150: ...the switch can classify and schedule network traffic It is recommended that there are two VLANs on a port one for voice and one for data Before connecting the IP device to the switch the IP phone shou...

Page 151: ...must disable MSTP feature before we enable Voice VLAN It can avoid the conflict of ingress filtering Possible port modes are Disabled Disjoins from Voice VLAN Auto Enables auto detect mode It detects...

Page 152: ...the entry It will be deleted during the next save Telephony OUI A telephony OUI address is a globally unique identifier assigned to a vendor by IEEE It must be 6 characters long and the input format...

Page 153: ...RP application component and a GARP Information Declaration GID component associated with each port or the switch The propagation of information between GARP participants for the same application in a...

Page 154: ...or Leave Timer is 600ms Leave All Timer The default value for Leave All Timer is 10000ms Application Currently the only supported application is GVRP Attribute Type Currently the only supported Attrib...

Page 155: ...ant to display the GARP counter information 3 Click Refresh to modify the GARP statistics information Figure 3 13 2 The GARP Port Statistics Port The port column shows the list of all ports for which...

Page 156: ...ons With GID information and GIP GVRP state machine maintains the contents of Dynamic VLAN Registration Entries for each VLAN and propagate these information to other GVRP aware devices to setup and u...

Page 157: ...GVRP Mode on a particular port locally Disable Select to disable GVRP mode on this port Enable Select to enable GVRP mode on this port The default value of configuration is disable 2 GVRP rrole This...

Page 158: ...t you want to display the GVRP Counter information 3 Click Refresh to modify the GVRP statistics information Figure 3 14 2 The GVRP Port Statistics Port The port column shows the list of ports for whi...

Page 159: ...s The switch supports advanced memory control mechanisms to provide excellent performance of all QoS classes under any traffic scenario including jumbo frame A super priority queue with dedicated memo...

Page 160: ...in any other way PCP Controls the default PCP for untagged frames DEI Controls the default DEI for untagged frames Tag Class Shows the classification mode for tagged frames on this port Disabled Uses...

Page 161: ...ll to select the Rate limit Unit with Kbps Mbps Fps and Kfps 4 Click Apply to save the configuration Figure 3 15 2 The QoS Ingress Port Policers Configuration Port The logical port for the settings co...

Page 162: ...ong to the currently selected stack unit as reflected by the page header Web Interface To display the QoS Port Schedulers in the web interface 1 Click Configuration QoS Port Schedulers 2 Display the Q...

Page 163: ...default value is Kbps Queue Shaper Excess Controls whether the queue is allowed to use excess bandwidth Queue Scheduler Weight Controls the weight for this queue The default value is 17 This value is...

Page 164: ...ormation to the ports that belong to the currently selected stack unit as reflected by the page header Web Interface To display the QoS Port Shapers in the web interface 1 Click Configuration QoS Port...

Page 165: ...ode is Strict Priority or Weighted on this switch port Queue Shaper Enable Controls whether the queue shaper is enabled for this queue on this switch port Queue Shaper Rate Controls the rate for the q...

Page 166: ...ghted Port Shaper Enable Controls whether the port shaper is enabled for this switch port Port Shaper Rate Controls the rate for the port shaper The default value is This value is restricted to 100000...

Page 167: ...port number in order to configure tag remarking Mode Shows the tag remarking mode for this port Classified Use classified PCP DEI values Default Use default PCP DEI values Mapped Use mapped versions...

Page 168: ...S Port DSCP parameters in the web interface 1 Click Configuration QoS Port DSCP 2 Evoke to enable or disable the Ingress Translate and scroll the classify 3 Parameter configuration 4 Scroll to select...

Page 169: ...t values Disable No Ingress DSCP Classification DSCP 0 Classify if incoming or translated if enabled DSCP is 0 Selected Classify only selected DSCP for which classification is enabled as specified in...

Page 170: ...croll to select QoS Class and DPL parameters 4 Click Save to save the setting 5 If you want to cancel the setting click the reset button to revert back to previously saved values Figure 3 15 7 The DSC...

Page 171: ...he DSCP Translation parameters in the web interface 1 Click Configuration QoS DSCP Translation 2 Scroll to set the Ingress Translate and Egress Remap DP0 and Remap DP1 Parameters 3 Evoke to enable or...

Page 172: ...e classification at Ingress side Egress There are following configurable parameters for Egress side 1 Remap DP0 Selects the DSCP value from select menu that you want to remap DSCP value ranges from 0...

Page 173: ...s 3 Click Save to save the setting 4 If you want to cancel the setting click the reset button to revert back to previously saved values Figure 3 15 9 The DSCP Classification Configuration QoS Class Av...

Page 174: ...a new QCE to the list Web Interface To configure the QoS Control List parameters in the web interface 1 Click Configuration QoS QoS Contol List 2 Click the to add a new QoS Control List 3 Scroll all p...

Page 175: ...ses are allowed The default value is Any VID Indicates VLAN ID either a specific VID or range of VIDs VID can be in the range 1 4095 or Any PCP Priority Code Point Valid value PCP are specific 0 1 2 3...

Page 176: ...N ID can be any value in the range 1 4095 or Any user can enter either a specific value or a range of VIDs PCP Priority Code Point Valid value PCP are specific 0 1 2 3 4 5 6 7 or range 0 1 2 3 4 5 6 7...

Page 177: ...e Point value DSCP It can be specific value range of value or Any DSCP values are in the range 0 63 including BE CS1 CS7 EF or AF11 AF43 IP Fragment IPv4 frame fragmented option yes no any Sport Sourc...

Page 178: ...cates the index of QCE Frame Type Indicates the type of frame to look for incoming frames Possible frame types are Any The QCE will match all frame type Ethernet Only Ethernet frames with Ether Type 0...

Page 179: ...ays be No Please note that that conflict can be resolved by releasing the resource required by the QCE and pressing Refresh button Auto refresh Check Auto Refresh so the device can refresh the informa...

Page 180: ...me type to enable storm control 3 Scroll to set the Rate Parameters 4 Click Save to save the setting 5 If you want to cancel the setting click the reset button to revert back to previously saved value...

Page 181: ...Current field displays the currently configured sFlow Collector The Configured field displays the new Collector Configuration Web Interface To configure the sFlow Agent in the web interface 1 Click Co...

Page 182: ...s to be configured for the collector The value of the port number has to be typed into the text box The value accepted is within the range of 1 65535 But an appropriate port number not used by other p...

Page 183: ...it does provide a result with quantifiable accuracy Web Interface To configure the sFlow Agent in the web interface 1 Click Configuration sFlow Agent Sampler 2 Click the to edit the sFlow sampler par...

Page 184: ...Rate Configures the sampling rate on the ports Max Hdr Size Configures the size of the header of the sampled frame Polling Interval Configures the polling interval for the counter sampling Buttons Edi...

Page 185: ...received the looping protection frames The section describes how to set the loop protection Web Interface To configure the Loop Protection parameters in the web interface 1 Click Configuration Loop P...

Page 186: ...0 seconds 7 days A value of zero will keep a port disabled until next device restart Port Configuration Port The switch port number of the port Enable Controls whether loop protection is enabled on th...

Page 187: ...tion Status Port The switch port number of the logical port Action The currently configured port action Transmit The currently configured port transmit mode Loops The number of loops detected on this...

Page 188: ...P group It could be accessed from the master switch Web Interface To configure the single IP parameters in the web interface 1 Click Configuration Single IP Configuration Figure 3 19 1 The Single IP C...

Page 189: ...k Configuration Single IP Information 2 Evoke the auto refresh or click to refresh the Single IP slave member manually Figure 3 19 2 The Single IP Information Index The ID of the active Slave Switch M...

Page 190: ...rformance Web Interface To configure the Easy Port in the web interface 1 Click Configuration Easy Port 2 Set the parameters 3 Scroll to select what kind device you want to set on the Easy Port and co...

Page 191: ...he port security function on the port If you turn on the function then you need to set port security limit to allow how many device can access the port via MAC address Port Security Action Scroll to s...

Page 192: ...ume that Port A and Port B are Monitoring Port and Monitored Port respectively Thus the traffic received by Port B will be copied to Port A for monitoring Web Interface To configure the Mirror in the...

Page 193: ...e mirror port Frames transmitted are not mirrored Tx only Frames transmitted on this port are mirrored on the mirror port Frames received are not mirrored Disabled Neither frames transmitted nor frame...

Page 194: ...le pre defined trap events occurred Web Interface To configure the Trap Event Severity Configuration in the web interface 1 Click Configuration Trap Event Severity Configuration 2 Scroll to select the...

Page 195: ...System is unusable 1 Alert Action must be taken immediately 2 Critical Critical conditions 3 Error Error conditions 4 Warning Warning conditions 5 Notice Normal but significant conditions 6 Informatio...

Page 196: ...s UPnP mode operation When the mode is enabled two ACEs are added automatically to trap UPNP related packets to CPU The ACEs are automatically removed when the mode is disabled TTL The TTL value is us...

Page 197: ...e or disable with the port of the switch This section describes how to configure IP Source Guard setting including Mode Enabled and Disabled Maximum Dynamic Clients 0 1 2 Unlimited Web Interface To co...

Page 198: ...enabled then the IP Source Guard is enabled on this given port Max Dynamic Clients Specifies the maximum number of dynamic clients that can be learned on given port This value can be 0 1 2 or unlimite...

Page 199: ...he entry 3 Click Apply Figure 4 1 2 The Static IP Source Guard Table Delete Check to delete the entry It will be deleted during the next save Port The logical port for the settings VLAN ID The VLAN ID...

Page 200: ...rt from port VLAN ID IP Address and entries per page 2 Checked Auto Refresh Figure 4 1 3 The Dynamic Table Port Switch port number for which the entries are displayed VLAN ID VLAN ID in which the IP t...

Page 201: ...Select Enabled in the Mode of ARP Inspection Configuration 2 Select Enabled of the specific port in the Mode of Port Mode Configuration 3 Click Apply Figure 4 2 1 The ARP Inspection Configuration Mod...

Page 202: ...4 2 2 The Static ARP Inspection Table Delete Check to delete the entry The entry will be deleted during the next save Port The logical port for the settings VLAN ID The VLAN ID for the settings MAC Ad...

Page 203: ...1 Specify the Start from port VLAN ID MAC Address IP Address and entries per page 2 Checked Auto Refresh Figure 4 2 3 The Dynamic ARP Inspection Table Port Switch port number for which the entries are...

Page 204: ...rt Mode Configuration 3 Click Apply Figure 4 3 1 The DHCP Snooping Configuration Snooping Mode Indicates the DHCP snooping mode operation Possible modes are Enabled Enables the DHCP snooping mode oper...

Page 205: ...3 with value 2 packets received and transmitted Rx and Tx Request The number of request option 53 with value 3 packets received and transmitted Rx and Tx Decline The number of decline option 53 with v...

Page 206: ...x Lease Active The number of lease active option 53 with value 13 packets received and transmitted Auto refresh Check Auto Refresh so the device can refresh the information automatically Upper right i...

Page 207: ...er IP Setting Relay Information Mode Enabled and Disabled Relay Information Mode Policy Replace Keep and Drop Web Interface To configure a DHCP Relay in the web interface 1 Select Enabled in the Relay...

Page 208: ...agent inserts specific information option 82 into a DHCP message when forwarding to the DHCP server The agent removes it from a DHCP message when transferring to DHCP client It only works when DHCP r...

Page 209: ...Receive Missing Agent Option The number of packets received without agent information options Receive Missing Circuit ID The number of packets received with the Circuit ID option missing Receive Missi...

Page 210: ...ay agent information was retained Drop Agent Option The number of packets that were dropped which were received with relay agent information Auto refresh Check Auto Refresh so the device can refresh t...

Page 211: ...eb Interface To configure a System Configuration of Network Access Server in the web interface 1 Select Enabled in the Mode of Network Access Server Configuration 2 Checked Reauthentication Enabled 3...

Page 212: ...y to secure MAC addresses Single 802 1X Multi 802 1X MAC Based Auth When the NAS module uses the port security module to secure MAC addresses the port security module needs to check for activity on th...

Page 213: ...etting determines whether RADIUS assigned VLAN is enabled on that port When unchecked RADIUS server assigned VLAN is disabled on all ports Guest VLAN Enabled A Guest VLAN is a special VLAN typically w...

Page 214: ...as the middle man forwarding requests and responses between the supplicant and the authentication server Frames sent between the supplicant and the switch are special 802 1X frames known as EAPOL EAP...

Page 215: ...but features many of the same characteristics as does port based 802 1X In Single 802 1X only one supplicant can get authenticated on the port at a time Normal EAPOL frames are used in the communicati...

Page 216: ...thentication is complete the RADIUS server sends a success or failure indication which causes the switch to open or block traffic for that particular client using the port security module Only then wi...

Page 217: ...Once assigned all traffic arriving on the port will be classified and switched on the RADIUS assigned VLAN ID If re authentication fails or the RADIUS Access Accept packet no longer carries a VLAN ID...

Page 218: ...APOL frame has previously been received on the port this history is cleared if the port link goes down or the port s Admin State is changed and if not the port will be placed in the Guest VLAN Otherwi...

Page 219: ...cation reauthentication will be attempted immediately The button only has effect for successfully authenticated clients on the port and will not cause the clients to get temporarily unauthorized o Rei...

Page 220: ...ate for a description of the individual states Last Source The source MAC address carried in the most recently received EAPOL frame for EAPOL based authentication and the most recently received frame...

Page 221: ...LAN Guest is appended to the VLAN ID Read more about Guest VLANs here Auto refresh Check Auto Refresh so the device can refresh the information automatically Upper right icon Refresh Click Refresh to...

Page 222: ...Refresh Figure 4 5 3 The NAS Statistics Port State Admin State The port s current administrative state Refer to NAS Admin State for a description of possible values Port State The current state of th...

Page 223: ...bled in the Failback to Local Authorization 3 Selects Enabled in the Account To configure a RADIUS Authentication Server Configuration of AAA in the web interface 1 Checks Enabled 2 Specifies IP addre...

Page 224: ...ommon Server Configuration Figure 4 5 3 2 The TACACS Accounting Configuration Figure 4 5 3 3 The RADIUS Configuration Figure 4 5 3 4 The RADIUS Accounting Configuration Figure 4 5 3 5 The TACACS Authe...

Page 225: ...accept STP command but deny VLAN command The server will block the command related to STP which is entered by user but it will allow the VLAN command to configure successfully when the user enters a V...

Page 226: ...and the switch stack TACACS Authentication Server Configuration The table has one row for each TACACS authentication server and a number of columns which are The TACACS authentication server number f...

Page 227: ...e server is enabled but the IP communication is not yet up and running Ready The server is enabled the IP communication is up and running and the RADIUS module is ready to accept access attempts Dead...

Page 228: ...tempts were made to this server but it did not reply within the configured timeout The server has temporarily been disabled but will get re enabled when the dead time expires The number of seconds lef...

Page 229: ...ounting servers The statistics map closely to those specified in RFC4668 RADIUS Authentication Client MIB Web Interface To configure a RADIUS Details Configuration in the web interface 1 Specify the p...

Page 230: ...ntaining invalid authenticators or Message Authenticator attributes received from the server Rx Unknown Types radiusAuthClientExtUnk nownTypes The number of RADIUS packets that were received with unkn...

Page 231: ...s attempts Dead X seconds left Access attempts were made to this server but it did not reply within the configured timeout The server has temporarily been disabled but will get re enabled when the dea...

Page 232: ...of RADIUS packets of unknown types that were received from the server on the accounting port Rx Packets Dropped radiusAccClientExtPacketsDropp ed The number of RADIUS packets that were received from...

Page 233: ...igured timeout The server has temporarily been disabled but will get re enabled when the dead time expires The number of seconds left before this occurs is displayed in parentheses This state is only...

Page 234: ...e by limiting and identifying MAC addresses Web Interface To configure a System Configuration of Limit Control in the web interface 1 Select Enabled in the Mode of System Configuration 2 Checked Aging...

Page 235: ...he timer expires the switch starts looking for frames from the end host If such frames are not seen within the next Aging Period the end host is assumed to be disconnected and the corresponding resour...

Page 236: ...e of four values Disabled Limit control is either globally disabled or disabled on the port Ready The limit is not yet reached This can be shown for all actions Limit Reached Indicates that the limit...

Page 237: ...asks all user modules whether to allow this new MAC address or to block it In order for a MAC address to be set in the forwarding state all enabled user modules must unanimously agree on allowing the...

Page 238: ...awaiting frames from unknown MAC addresses to arrive Limit Reached The port security service is enabled by at least the Limit Control user module and that module has indicated that the limit is reache...

Page 239: ...ID The MAC address and VLAN ID that is seen on this port If no MAC addresses are learned a single row stating No MAC addresses attached is displayed State Indicates whether the corresponding MAC addr...

Page 240: ...ch The maximum entry number is 16 If the application s type match any one of the access management entries it will allow access to the switch Web Interface To configure a Access Management Configurati...

Page 241: ...management entry HTTP HTTPS Indicates that the host can access the switch from HTTP HTTPS interface if the host IP address matches the IP address range provided in the entry SNMP Indicates that the h...

Page 242: ...h Received Packets Number of received packets from the interface when access management mode is enabled Allowed Packets Number of allowed packets from the interface when access management mode is enab...

Page 243: ...nication Web Interface To configure a SSH Configuration in the web interface 1 Select Enabled in the Mode of SSH Configuration 2 Click Apply Figure 4 9 1 The SSH Configuration Mode Indicates the SSH m...

Page 244: ...omatic Redirect of HTTPS Configuration 3 Click Apply Figure 4 10 1 The HTTPS Configuration Mode Indicates the HTTPS mode operation Possible modes are Enabled Enables HTTPS mode operation Disabled Disa...

Page 245: ...tication Method Authentication method can be set to one of the following values None Authentication is disabled and login is not possible Local Uses the local user database on the switch stack for aut...

Page 246: ...e switch for any maintenance needs Any configuration files or scripts that you saved in the switch should still be available afterwards Web Interface To configure a Restart Device Configuration in the...

Page 247: ...e firmware URL and filename Upload Click the Upload button then the switch will start to upload the firmware from firmware stored location PC or Server NOTE This page facilitates an update of the firm...

Page 248: ...are or operating firmware This page provides information about the active and alternate backup firmware images in the device and allows you to revert to the alternate image Web Interface To configure...

Page 249: ...n of the firmware image Date The date when the firmware was produced NOTE 1 In case the active firmware image is the alternate image only the Active Image table is shown In this case the Activate Alte...

Page 250: ...describes how to reset the switch configuration to factory defaults Any configuration files or scripts will recover to factory default values Web Interface To configure a Factory Defaults Configuratio...

Page 251: ...nfiguration Any current configuration files will be saved as XML format Web Interface To configure a Save Start Configuration in the web interface 1 Click Save Start 2 Click Yes Figure 5 3 2 Save Star...

Page 252: ...on Any current configuration files will be saved as XML format Web Interface To configure a Save User Configuration in the web interface 1 Click Save User 2 Click Yes Figure 5 3 3 Save as Backup Confi...

Page 253: ...switch Any current configuration files will be restored via XML format Web Interface To configure a Restore User Configuration in the web interface 1 Click Restore User 2 Click Yes Figure 5 3 4 The R...

Page 254: ...is section describes to export the swith configuration for maintenance needs Any current configuration files will be exported as XML format Web Interface To configure the Export Config Configuration i...

Page 255: ...XML format Web Interface To configure an Import Config Configuration in the web interface 1 Click Browse to select the config file in your device 2 Click Upload Figure 5 4 2 The Import Config Browse C...

Page 256: ...om 2 bytes to 1452 bytes Ping Count The count of the ICMP packet The values range from 1 time to 60 times Ping Interval The interval of the ICMPv6 packet The values range from 0 second to 30 seconds S...

Page 257: ...acket The values range from 0 second to 30 seconds Start Click the Start button then the switch will start to ping the device using ICMPv6 packet size what set on the switch After you press start 5 IC...

Page 258: ...e for cables that are 7 140 meters in length 10 and 100 Mbps ports will be linked down while VeriPHY is running Therefore running VeriPHY on a 10 or 100 Mbps management port will cause the switch to s...

Page 259: ...lacement It is recommended that only qualified service personnel replace the internal battery CAUTION Risk of explosion if battery is replaced by an incorrect type Dispose of used batteries according...

Page 260: ...o firewalls There are 3 webpages associated with the manual ACL configuration ACL Access Control List The web page shows the ACEs from highest top to lowest bottom The default the table is empty An in...

Page 261: ...sed to convert an IP address into a physical address such as an Ethernet address ARP allows a host to communicate with other hosts when only the internet address of its neighbors is known Before using...

Page 262: ...manage the task This means that a new computer can be added to a network without the hassle of manually assigning it a unique IP address DHCP Relay DHCP Relay is used to forward and to transfer DHCP...

Page 263: ...address has the form x y z w The values x y z and w are decimal numbers between 0 and 255 DSCP DSCP is an acronym for Differentiated Services Code Point It is a field in the header of IP packets for...

Page 264: ...e HTTP connection HTTPS provide authentication and encrypted communication and is widely used on the World Wide Web for security sensitive communication such as payment transactions and corporate logo...

Page 265: ...dresses This number is reduced drastically by the practice of webmasters taking addresses in large blocks the bulk of which remain unused There is a rather substantial movement to adopt a new version...

Page 266: ...switch builds a table that maps MAC addresses to switch ports for knowing which ports the frames should go to based upon the DMAC address in the frame This table contains both static and dynamic entri...

Page 267: ...1X NetBIOS NetBIOS is an acronym for Network Basic Input Output System It is a program that allows applications on separate computers to communicate within a Local Area Network LAN It is not supporte...

Page 268: ...that sends a series of packets over a network or the Internet to a specific computer in order to generate a response from that computer The other computer responds with an acknowledgment that it rece...

Page 269: ...ality video and delay sensitive data such as real time voice Networks must provide secure predictable measurable and sometimes guaranteed services Achieving the required QoS becomes the secret to a su...

Page 270: ...participate in network management architecture It enables network management systems to learn network problems by receiving traps or change notices from network devices implementing SNMP SNTP SNTP is...

Page 271: ...ervers TACACS provides separate authentication authorization and accounting services Tag Priority Tag Priority is a 3 bit field storing the priority level for the 802 1Q frame TCP TCP is an acronym fo...

Page 272: ...t provide the service of dividing a message into packet datagrams UDP doesn t provide reassembling and sequencing of the packets This means that the application program that uses UDP must make sure th...

Page 273: ...s connected to the service provider are VLAN aware members of multiple VLANs and set up to tag all frames Untagged frames received on a subscriber port are forwarded to the provider port with a single...

Page 274: ...273 Contact Information Vigitron Inc 7810 Trade Street Suite 100 San Diego CA 92121 support vigitron com Tel 858 484 5209 Fax 858 484 1205 www vigitron com...

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