SMC Networks TigerSwitch 10/100 SMC6724L2 Скачать руководство пользователя страница 143 | Manualshive

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The SMC6724L2 supports Layer 2 switching and other advanced
features which are described in this chapter.

Layer 2 Switching

When a frame enters a port, its destination MAC address is
checked in the address database to see which port leads to this
destination. If the destination address belongs to the incoming
port, the frame is dropped or “filtered.” If the destination port is
found on another port, the frame is forwarded to that port and
queued for output. But, if the destination address is

not

found in

the address database, the frame is sent to one or more output ports
based on the rules for handling tagged or untagged VLAN frames.

If the source MAC address of the frame was not found in the
address database, it is recorded along with the incoming port
number where it entered the switch. This information is then used
to make later decisions for frame forwarding.

During switching, the switch performs multiple steps, including:

◆

VLAN Classification

◆

Learning

◆

Filtering

◆

Forwarding

◆

Aging

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Содержание TigerSwitch 10/100 SMC6724L2

Страница 1: ...dules 8 8 Gbps aggregate bandwidth Non blocking switching architecture Spanning Tree Protocol Up to eight port trunks Port mirroring for non intrusive analysis QoS support for two level priority Full...

Страница 2: ......

Страница 3: ...6 Hughes Irvine CA 92618 Phone 949 707 2400 TigerSwitch 10 100 Management Guide From SMC s Tiger line of feature rich workgroup LAN solutions November 2001 Pub 150000000600A...

Страница 4: ...ed by implication or otherwise under any patent or patent rights of SMC SMC reserves the right to change specifications at any time without notice Copyright 2001 by SMC Networks Inc 6 Hughes Irvine CA...

Страница 5: ...Test Ping 2 14 HTTP Configuration 2 15 Configuring the Serial Port 2 16 Assigning SNMP Parameters 2 18 Configuring Community Names 2 19 Configuring IP Trap Managers 2 20 User Log in Configuration 2 2...

Страница 6: ...ing the Current Spanning Tree Information 2 63 Displaying the Current STA for Ports 2 64 Displaying VLAN Information 2 66 VLAN Dynamic Registration Information 2 67 VLAN Forwarding Information 2 68 IP...

Страница 7: ...e 3 28 Configuring the Static Multicast Address Table 3 29 Using the Bridge Menu 3 30 Configuring Global Bridge Settings 3 31 Configuring STA for Ports 3 34 Configuring Virtual LANs 3 35 VLAN Port Con...

Страница 8: ...ree Algorithm 4 4 Virtual LANs 4 5 Assigning Ports to VLANs 4 6 VLAN Classification 4 7 Port Overlapping 4 7 Port based VLANs 4 7 Automatic VLAN Registration GVRP 4 7 Forwarding Tagged Untagged Frames...

Страница 9: ...bleshooting Chart A 1 Upgrading Firmware via the Serial Port A 2 B Pin Assignments B 1 Console Port Pin Assignments B 1 DB 9 Port Pin Assignments B 2 Console Port to 9 Pin DTE Port on PC B 2 Console P...

Страница 10: ...CONTENTS vi...

Страница 11: ...he switch to be managed from any PC in the network using in band management software such as SMC s EliteView The management agent also includes an embedded HTTP Web agent This Web agent can be accesse...

Страница 12: ...of configuration options Note If the default settings for the management agent s serial port have been modified and you are having difficulty making a console connection you can display or modify the...

Страница 13: ...led To enable BOOTP see IP Configuration on page 2 12 2 Up to four simultaneous Telnet sessions are supported by this switch 3 The on board program only provides access to basic configuration function...

Страница 14: ...SWITCH MANAGEMENT 1 4...

Страница 15: ...he administrator has Read Write access to all configuration parameters and statistics while the guest has Read Only access to the management program SSSSSSSSSSSSSSS MMMMM MMMMM CCCCCCCCCCCCCC SSSSSSSS...

Страница 16: ...t of up to 15 alphanumeric characters and are not case sensitive Notes 1 You are allowed three attempts to enter the correct password on the third failed attempt the current connection is terminated 2...

Страница 17: ...Menu Exit SNMP Communities IP Trap Managers IP Configuration IP Connectivity Test Ping HTTP Configuration VLAN Dynamic Registration Info VLAN Forwarding Information Unicast Address Table Layer 2 Menu...

Страница 18: ...the currently selected item are displayed in the highlighted area at the bottom of the interface screen SMC6724L2 Main Menu System Information Menu Management Setup Menu Device Control Menu Network Mo...

Страница 19: ...wnloads new version of firmware to update your system in band Configuration File Saves or restores configuration data using the specified file Device Control Menu Layer 2 Menu Configures port communic...

Страница 20: ...ation for the overall bridge and for specified ports VLAN Menu Displays dynamic port registration information for VLANs as well as VLAN forwarding information for static and dynamic assignment IP Mult...

Страница 21: ...n and hardware firmware versions System Information Menu System Information Switch Information OK Use TAB or arrow keys to move Enter to select Menu Description System Information Provides basic syste...

Страница 22: ...ncel Use TAB or arrow keys to move other keys to make changes Parameter Description System Description System hardware description System Object ID MIB II object identifier for switch s network manage...

Страница 23: ...1GBase T OK Use Enter to select Parameter Description Hardware Version Hardware version of the main board Firmware Version System firmware version in ROM Serial Number The serial number of the main bo...

Страница 24: ...on The items provided by the Management Setup Menu are described in the following sections Management Setup Menu Network Configuration Serial Port Configuration SNMP Configuration User Configuration T...

Страница 25: ...o update your system in band Configuration File Saves or restores configuration data based on the specified file Network Configuration IP Configuration IP Connectivity Test Ping HTTP Configuration OK...

Страница 26: ...ss IP address of the switch you are managing The system supports SNMP over UDP IP transport protocol In this environment all systems on the Internet such as network interconnection devices and any PC...

Страница 27: ...ply has been received BOOTP requests will be broadcast periodically by the switch in an effort to learn its IP address BOOTP values can include the IP address default gateway and subnet mask VLAN ID T...

Страница 28: ...ds for a response to each ping IP Connectivity Test Ping IP Address 10 1 3 22 Test Times 3 Success 3 Failure 0 Start CANCEL Use TAB or arrow keys to move other keys to make changes Parameter Descripti...

Страница 29: ...onfiguration Use the HTTP Configuration screen to enable disable the onboard Web agent Note Port 80 is used for HTTP service HTTP Configuration HTTP Server ENABLED Apply OK Cancel Use TAB or arrow key...

Страница 30: ...see Required Connections on page 1 2 The communication parameters for this port can be accessed from the Serial Port Configuration screen shown below and described in the following table Serial Port...

Страница 31: ...t Sets the stop bits of the RS 232 port Options 1 2 Parity None Sets the parity of the RS 232 port Options none odd even Timeout 10 minutes If no input is received from the attached device after this...

Страница 32: ...ch the NMS must first submit a valid community string for authentication The options for configuring community strings and related trap functions are described in the following sections SNMP Configura...

Страница 33: ...d on the screen SNMP Communities Community Name Access Status 1 public READ WRITE ENABLED 2 private READ ONLY ENABLED 3 4 5 APPLY OK CANCEL Use TAB or arrow keys to move other keys to make changes Par...

Страница 34: ...e switch Up to 5 trap managers may be entered IP Trap Managers IP Address Community Name Status 1 10 1 0 23 public ENABLED 2 3 4 5 APPLY OK CANCEL Use TAB or arrow keys to move other keys to make chan...

Страница 35: ...m Configuration Program enter ResetSystem for the user name with no password The parameters shown on this screen are indicated in the following figure and table User Configuration User Name Access Rig...

Страница 36: ...meter Description User Name Specifies a user authorized management access to the switch via the console Telnet or HTTP Password Password associated with this entry Access Right ADMIN Read Write for al...

Страница 37: ...oftware the agent will automatically restart itself Parameters shown on this screen are indicated in the following figure and table Note You can also download firmware using the Web agent page 3 18 or...

Страница 38: ...nsfer a file Switch Specify the IP address of the TFTP client and select Download from switch or Upload from Switch TFTP Client Set the mode to binary specify the IP address of the target switch and t...

Страница 39: ...file 6724L2 cfg in drive c of the TFTP client PC Parameter Description i Specifies that binary mode is used for the transfer If binary mode is not specified the default will be ASCII Always specify bi...

Страница 40: ...Security Menu OK Use TAB or arrow keys to move Enter to select Menu Description Layer 2 Menu Configures port communication mode mirror ports and port trunking Bridge Menu Configures the Spanning Tree...

Страница 41: ...atic Multicast Address Configuration OK Use TAB or arrow keys to move Enter to select Menu Description Port Configuration Enables any port enables disables flow control and sets communication mode to...

Страница 42: ...1 On ENABLED ENABLED 10HDX 100TX FDX Off RJ 45 2 Off ENABLED ENABLED 10HDX 10HDX Off RJ 45 3 Off ENABLED ENABLED 10HDX 10HDX Off RJ 45 4 Off ENABLED ENABLED 10HDX 10HDX Off RJ 45 5 Off ENABLED ENABLED...

Страница 43: ...features Port Type Speed Duplex Flow Mode Control 10 100BASE T auto auto auto 100BASE FX 100M full duplex auto 1000BASE SX 1000M full duplex auto 1000BASE LX 1000M full duplex auto 1000BASE T 1000M fu...

Страница 44: ...uplex Note that flow control should not be used if a port is connected to a hub For the Gigabit modules the options for flow control are set out below Switch Link Partner Flow Control SendOnly Rcv Bot...

Страница 45: ...nitor port as shown below Note You can mirror multiple ports to a single port to view traffic such as that crossing a port trunk However note that some packets may be dropped for moderate to heavy loa...

Страница 46: ...load across each port in the trunk the additional ports provide redundancy by taking over the load if another port in the trunk fails However before making any physical connections between devices us...

Страница 47: ...k2 4 15 03 16 04 Trunk3 8 17 05 18 06 19 07 20 08 OK Add Use TAB or arrow keys to move Enter to select Parameter Description Index The trunk identifier Port Count Trunks can contain 2 4 or 8 ports Por...

Страница 48: ...all the ports in the trunk or remove all the network cables Otherwise a loop may be created To disable a single link within a port trunk you should first remove the network cable and then disable bot...

Страница 49: ...and table Notes 1 To assign a MAC address to a specific port use Add To delete or modify an address highlight it with the cursor and select Enter 2 To scroll through the address table use the Next Pag...

Страница 50: ...elete or modify an address highlight it with the cursor and select Enter 2 To scroll through the address table use the Next Page and Prev Page buttons 3 To display a specific page set the page number...

Страница 51: ...router in your network to ensure that only one route exists between any two stations on the network and provide backup links which automatically take over when a primary link goes down For a more deta...

Страница 52: ...er Default Description Spanning Tree Enabled Enable this parameter to participate in a STA compliant network Bridge Priority 32 768 Bridge priority is used in selecting the root device root port and d...

Страница 53: ...econfigure All device ports except for designated ports should receive configuration messages at regular intervals Any port that ages out STA information provided in the last configuration message bec...

Страница 54: ...specific port See VLAN Port Configuration on page 2 43 Priority Threshold 4 This switch supports Quality of Service QoS by using two priority queues with Weighted Fair Queuing for each port Up to 8 se...

Страница 55: ...OK Cancel Prev Page Next Page Use TAB or arrow keys to move Enter to select Parameter Default Description Type Shows port type as 100TX 10BASE T 100BASE TX 100BASE FX_MM 100BASE FX multimode 100BASE...

Страница 56: ...t Forwarding Disabled This parameter is used to enable disabled the Fast Spanning Tree mode for the selected port In this mode ports skip the Blocked Listening and Learning states and proceed straight...

Страница 57: ...ner network environment For more information on how to use VLANs see Virtual LANs on page 4 5 The VLAN configuration screens are described in the following sections VLAN Port Configuration You can use...

Страница 58: ...e This ensures that after a Leave or LeaveAll message has been issued the applicants can re join before the port actually leaves the group Leave All Time 1000 The interval centiseconds between sending...

Страница 59: ...witch supports Quality of Service QoS by using two priority queues with Weighted Fair Queuing for each port Inbound frames that do not have VLAN tags are tagged with the input port s default ingress u...

Страница 60: ...hen enabled this port will allow endstations to register with multicast groups using GMRP Note that GMRP must be enabled for the switch before this setting can take effect page 2 38 IGMP and IGMP Snoo...

Страница 61: ...SSSSSS Normal S Static R Reg Fixed X Forbidden Page 1 Apply Total 1 Pages OK Prev Page Next Page Add Use TAB or arrow keys to move other keys to make changes Parameter Description VLAN The ID for the...

Страница 62: ...al multicast switch router Although this approach reduces the network overhead required by a multicast server the broadcast traffic must be carefully filtered at every multicast switch router it passe...

Страница 63: ...tor network traffic to determine which hosts want to receive multicast traffic This is also referred to as IGMP Snooping IGMP Router Timeout 5 A switch port that stops receiving multicast protocol pac...

Страница 64: ...able address learning Security Menu MAC Filtering Configuration Security Mode OK Use TAB or arrow keys to move Enter to select Parameter Description MAC Filtering Configuration Specifies the source or...

Страница 65: ...Security Filtering Configuration table will be filtered Notes 1 To add a MAC address to the security filter use Add To delete an address highlight it with the cursor and select Enter 2 To scroll throu...

Страница 66: ...ve been registered on the switch It may then be disabled as a security feature to ensure that frames from any station with an unknown MAC address are filtered To add new VLAN members at a later time t...

Страница 67: ...TAB or arrow keys to move Enter to select Menu Description Port Statistics Displays statistics on port traffic including information from the Interfaces Group Ethernet like MIB and RMON MIB Layer 2 A...

Страница 68: ...tailed breakdown of traffic based on the RMOM MIB Statistics Menu Port Statistics RMON Statistics OK Use TAB or arrow keys to move Enter to select Parameter Description Port Statistics Displays standa...

Страница 69: ...Unicast Pkts 0 In Non Unicast Pkts 2641 Out Non Unicast Pkts 2 In Discards 0 Out Discards 0 In Errors 0 Out Errors 0 Alignment Errors 0 CRC Errors 0 Ethernet Single Collisions 0 Multiple Collisions 0...

Страница 70: ...number of packets that higher level protocols requested be transmitted to a subnetwork unicast address including those that were discarded or not sent Out Non Unicast Pkts The total number of packets...

Страница 71: ...successfully transmitted frames for which transmission is inhibited by more than one collision Late Collisions The number of times that a collision is detected later than 512 bit times into the transm...

Страница 72: ...adcast Frames 4 65 127 Byte Frames 0 Multicast Frames 2666 128 255 Byte Frames 0 CRC Alignments Errors 0 256 511 Byte Frames 0 Undersize Frames 0 512 1023 Byte Frames 0 Oversize Frames 0 1024 1518 Byt...

Страница 73: ...S octets and had either an FCS or alignment error Jabbers The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and had either an FCS or...

Страница 74: ...ress Table This menu includes the unicast address table Layer 2 Address Table Unicast Address Table OK Use TAB or arrow keys to move Enter to select Menu Description Unicast Address Table Provides a f...

Страница 75: ...scroll through the address table 2 To display a specific page set the page number in the Page field and then select Apply Layer 2 Menu Unicast Address Table Address Port Address Port 00 10 B5 DD DA A0...

Страница 76: ...Tree Algorithm on page 4 4 Bridge Menu Spanning Tree Bridge Information Spanning Tree Port Information OK Use TAB or arrow keys to move Enter to select Menu Description Spanning Tree Bridge Informatio...

Страница 77: ...7 Configuration Changes 1 Topology Up Time 1014515 0 day 2 hr 49 min 5 sec OK Return to previous panel Use Enter to select Parameter Description Priority Device priority is used in selecting the root...

Страница 78: ...uration Changes The number of times the Spanning Tree has been reconfigured Topology Up Time The time since the Spanning Tree was last reconfigured Bridge Menu Spanning Tree Port Information Port 1 12...

Страница 79: ...ransmitted configuration messages for an interval set by the Forward Delay parameter without receiving contradictory information Port address table is cleared and the port begins learning addresses Fo...

Страница 80: ...Tree Designated Port ID The priority and number of the port on the designated bridging device through which this switch must communicate with the root of the Spanning Tree VLAN Information VLAN Dynam...

Страница 81: ...he dynamic registration table use the Next Page and Prev Page buttons 2 To display a specific page set the page number in the Page field and then select Apply VLAN Dynamic Registration Information Por...

Страница 82: ...dynamic registration table use the Next Page and Prev Page buttons 2 To display a specific page set the page number in the Page field and then select Apply VLAN Forwarding Information Port 1 2 VLAN 1...

Страница 83: ...456 Learned by 1 234 7 6 99 M IGMP Page 1 Apply Total 1 Pages OK Prev Page Next Page Use TAB or arrow keys to move Enter to select Parameter Description VLAN A VLAN with host members that have asked t...

Страница 84: ...nformation unless you elect to reload the factory defaults Logging Off the System Use the Exit command under the Main Menu to exit the configuration program and terminate communication with the switch...

Страница 85: ...u have first performed the following tasks 1 Configure it with a valid IP address subnet mask and default gateway using an out of band serial connection or BOOTP protocol 2 Set a user name and passwor...

Страница 86: ...ers IP Configuration Device Control Menu Layer 2 Menu Bridge Menu VLAN Menu IGMP Snooping Configuration Security Menu Port Configuration Mirror Port Configuration Port Trunking Configuration Static Un...

Страница 87: ...left side of the screen and System Information on the right side The Main Menu links are used to navigate to other menus and display configuration parameters and statistics If this is your first time...

Страница 88: ...rer 5 x is configured as follows Under the menu Tools Internet Options General Temporary Internet Files Settings the setting for item Check for newer versions of stored pages should be Every visit to...

Страница 89: ...ch version information as described on page 3 11 Port State Display Click on any port to display a summary or port status as shown below as well as Etherlike statistics page 3 46 Parameter Description...

Страница 90: ...ttings as shown below Link Status Indicates if the port has a valid connection to an external device Speed Status Indicates the current port speed Duplex Status Indicates the port s current duplex mod...

Страница 91: ...ts the stop bits of the RS 232 port Options 1 2 Parity none Sets the parity of the RS 232 port Options none odd even Timeout 0 minutes If no input is received from the attached device after this inter...

Страница 92: ...witch Management Setup Menu Network Configuration Configures the switch s network parameters Serial Port Configuration Sets communication parameters for the serial port including baud rate console tim...

Страница 93: ...and RMON MIB Layer 2 Address Table Contains the unicast address table Bridge Menu Displays Spanning Tree information for the overall bridge and for specified ports VLAN Menu Displays dynamic port regi...

Страница 94: ...ion System Name Name assigned to the switch system Object ID MIB II object identifier for switch s network management subsystem Location Specifies the area or location where the system resides Contact...

Страница 95: ...version of the main board Firmware Version System firmware version in ROM Serial Number Serial number of the main board Port Number Number of ports on this switch Internal Power Status Power status f...

Страница 96: ...d in the following sections Menu Description Network Configuration Configures the switch s IP parameters Serial Port Configuration Sets communication parameters for the serial port including baud rate...

Страница 97: ...rnet such as network interconnection devices and any PC accessing the agent module or running EliteView must have an IP address Valid IP addresses consist of four numbers 0 and 255 separated by period...

Страница 98: ...but will not function until a BOOTP reply has been received BOOTP requests will be broadcast periodically by the switch in an effort to learn its IP address BOOTP values can include the IP address de...

Страница 99: ...th the switch the NMS must first submit a valid community string for authentication The options for configuring community strings and related trap functions are described in the following figures and...

Страница 100: ...ication failure messages or other trap messages from the switch Up to 5 trap managers may be entered Parameter Description IP Address IP address of the trap manager Community Name A community authoriz...

Страница 101: ...u to configure the names and access rights for people authorized to manage the switch Parameter Description User Name Specifies a user authorized management access to the switch via the console Telnet...

Страница 102: ...ccessibility of the TFTP server and the quality of the network connection After downloading the new software the agent will automatically restart itself Parameters shown on this screen are indicated i...

Страница 103: ...a DOS window command prompt enter the TFTP command in the form TFTP i host GET PUT source destination Refer to page 2 25 for a description of the TFTP command To transfer a file Switch Specify the IP...

Страница 104: ...igures port communication mode mirror ports port trunking and static addresses Bridge Menu Configures the Spanning Tree Protocol for the bridge or for specific ports GMRP and GVRP for automatic regist...

Страница 105: ...default communication speed and duplex mode as well as flow control in use Menu Description Port Configuration Enables any port enables disables flow control and sets communication mode to auto negoti...

Страница 106: ...ASE T 1000M full duplex auto The 10 100BASE TX ports can auto negotiate the speed to 10 100 Mbps and the transmission mode to half full duplex The plug in modules are all fixed at the indicated speed...

Страница 107: ...abit modules the options for flow control are set out below Switch Link Partner Flow Control SendOnly Rcv BothWay Switch can only send pause frames link partner can only receive pause frames BothWay R...

Страница 108: ...creen to mirror one or more ports to the monitor port as shown below Note You can mirror multiple ports to a single port to view traffic such as that crossing a port trunk However note that some packe...

Страница 109: ...load across each port in the trunk the additional ports provide redundancy by taking over the load if another port in the trunk should fail However before making any physical connections between devi...

Страница 110: ...List The port groups currently configured as trunks New Setting The port groups that can still be configured as trunks 13 1 14 2 15 3 16 4 17 5 18 6 19 7 20 8 21 9 22 10 23 11 24 12 13 1 14 2 15 3 16...

Страница 111: ...trunk via the configuration menu you must disable all the ports in the trunk or remove all the network cables Otherwise a loop may be created To disable a single link within a port trunk you should f...

Страница 112: ...ribed in the following figure and table Notes 1 To assign an address to a specific port enter it in the MAC Address field select the corresponding port and press Apply 2 To delete an address press the...

Страница 113: ...one or more ports enter its address and the corresponding VLAN select the required ports and then press Apply 2 To delete an address press the edit icon for the required entry and then press Delete 3...

Страница 114: ...bridging devices that is an STA compliant switch bridge or router in your network to ensure that only one route exists between any two stations on the network and provide backup links that automatical...

Страница 115: ...iority is used in selecting the root device root port and designated port The device with the highest priority becomes the STA root device However if all devices have the same priority the device with...

Страница 116: ...efore attempting to reconfigure All device ports except for designated ports should receive configuration messages at regular intervals Any port that ages out STA information provided in the last conf...

Страница 117: ...specific port See VLAN Port Configuration on page 3 36 Priority Threshold 4 This switch supports Quality of Service QoS by using two priority queues with Weighted Fair Queuing for each port Up to 8 s...

Страница 118: ...t in the STA algorithm If the path cost for all ports on a switch are the same the port with the highest priority i e lowest value will be configured as an active link in the Spanning Tree Where more...

Страница 119: ...s see Virtual LANs on page 4 5 The VLAN configuration screens are described in the following sections The default and recommended range is Ethernet 100 50 600 Fast Ethernet 19 10 60 Gigabit Ethernet 4...

Страница 120: ...can use the VLAN Port Configuration screen to configure GARP the default VLAN identifier default port priority VLAN tagging on outgoing frames GVRP and GMRP status and filtering incoming frames for V...

Страница 121: ...e join time This ensures that after a Leave or LeaveAll message has been issued the applicants can rejoin before the port actually leaves the group Leave All Time 1000 The interval in centiseconds bet...

Страница 122: ...switch supports Quality of Service QoS by using two priority queues with Weighted Fair Queuing for each port Inbound frames that do not have VLAN tags are tagged with the input port s default ingress...

Страница 123: ...s GMRP for this port When enabled this port will allow endstations to register with multicast groups using GMRP Note that GMRP must be enabled for the switch before this setting can take effect page 3...

Страница 124: ...meter Description VLAN The ID for the VLAN currently displayed Range 1 4094 Port Port entries may be marked as N Normal Uses GVRP to determine port membership X Forbidden Disables GVRP for this VLAN o...

Страница 125: ...ces the network overhead required by a multicast server the broadcast traffic must be carefully filtered at every multicast switch router it passes through to ensure that traffic is passed on only to...

Страница 126: ...at stops receiving multicast protocol packets for this interval will be removed from the IGMP forwarding list Range 3 5 minutes IGMP Group Timeout 5 The time between spotting an IGMP Report message fo...

Страница 127: ...table will be filtered Notes 1 To add a MAC address to the security filter type an entry into the MAC Address field and press Add The MAC address that you enter must consist of twelve hexadecimal digi...

Страница 128: ...disabled an uplink port must be specified to which the switch will forward all unknown packets Parameter Description Learning Function Enables and disables the switch s function of learning the sourc...

Страница 129: ...statistics on port traffic including information from the Interfaces Group Ethernet like MIB and RMON MIB Layer 2 Address Table Contains the unicast address table Bridge Menu Displays Spanning Tree se...

Страница 130: ...y loading The values displayed have accumulated since the last system reboot Select the required port The statistics displayed are indicated in the following figure and table Parameter Description Int...

Страница 131: ...al number of packets that higher level protocols requested be transmitted to a subnetwork unicast address including those that were discarded or not sent Out Non Unicast Pkts The total number of packe...

Страница 132: ...lly transmitted frames for which transmission is inhibited by more than one collision Late Collisions The number of times that a collision is detected later than 512 bit times into the transmission of...

Страница 133: ...d since the last system reboot Parameter Description Drop Events The total number of events in which packets were dropped due to lack of resources Received Bytes Total number of bytes of data received...

Страница 134: ...hat were longer than 1518 octets excluding framing bits but including FCS octets and contained either an FCS or alignment error Collisions The best estimate of the total number of collisions on this E...

Страница 135: ...ettings for the Spanning Tree Algorithm For a more detailed description of how to use this algorithm refer to Spanning Tree Algorithm on page 4 4 Menu Description Unicast Address Table Provides a full...

Страница 136: ...the STA root device However if all devices have the same priority the device with the lowest MAC address will then become the root device Hello Time The time interval in seconds at which the root dev...

Страница 137: ...evice through this port If there is no root port then this switch has been accepted as the root device of the Spanning Tree network Configuration Changes The number of times the Spanning Tree has been...

Страница 138: ...es defining port status are A port on a network segment with no other STA compliant bridging device is always forwarding If two ports of a switch are connected to the same segment and there is no othe...

Страница 139: ...Information This table shows the ports that have been automatically learned via GVRP VLAN Forwarding Information Shows all those ports that have been configured by either dynamic or static means to fo...

Страница 140: ...ave asked to receive the indicated multicast service Multicast IP A source IP address that represents a specific multicast service Multicast Group Ports The ports that belong to the indicated VLAN gro...

Страница 141: ...ement agent The reset screen is shown below Note When restarting the system it will always run the Power On Self Test It will also retain all system information unless you elect to reload the factory...

Страница 142: ...WEB INTERFACE 3 58...

Страница 143: ...ound on another port the frame is forwarded to that port and queued for output But if the destination address is not found in the address database the frame is sent to one or more output ports based o...

Страница 144: ...address table to see whether this pair is known If unknown the switch adds this pair to the address table If known the switch checks the pair for an incorrect Port ID If the PID associated with the p...

Страница 145: ...the received frame is a Bridge Protocol Data Unit BPDU If a BPDU is received the switch forwards the frame for processing by the Spanning Tree Protocol Otherwise the switch performs the following pro...

Страница 146: ...root of the spanning tree network It selects a root port on each bridging device except for the root device which incurs the lowest path cost when forwarding a packet from that device to the root dev...

Страница 147: ...itch creates segregated broadcast domains based on easily configurable VLANs and then links these VLANs as required with wire speed routing An IEEE 802 1Q VLAN is a group of ports that can be located...

Страница 148: ...VLANs Passing traffic between VLAN aware and VLAN unaware devices Priority tagging Assigning Ports to VLANs Before enabling VLANs for the switch you must first assign each port to the VLAN group s in...

Страница 149: ...c ports The switch s forwarding decision is based on the destination MAC address and its associated port Therefore to make valid forwarding or flooding decisions the switch must learn the relationship...

Страница 150: ...untagged frames To forward a frame from a VLAN aware device to a VLAN unaware device the switch first decides where to forward the frame and then strips off the VLAN tag However to forward a frame fro...

Страница 151: ...is to optimize a switched network s performance so multicast packets will only be forwarded to those ports containing multicast group hosts or multicast routers switches instead of flooding traffic t...

Страница 152: ...eceive the multicast service Based on the group membership information learned from IGMP a router switch can determine which if any multicast traffic needs to be forwarded to each of its ports At Laye...

Страница 153: ...f data such as real time video or voice and best effort data Priority assignment to a packet in the SMC6724L2 can be accomplished in any of the following ways Priority can be explicitly assigned by en...

Страница 154: ...read only access can use only use GET and GETNEXT commands to view the current configuration settings and status of the switch But a community with read write access can use GET and GETNEXT commands a...

Страница 155: ...ess VLAN pair of received frames After all current network nodes have been registered learning may be disabled as a security feature to ensure that frames from any station with an unknown MAC address...

Страница 156: ...ing These groups include Statistics Includes all the tools needed to monitor your network for common errors and overall traffic rates Information is provided on bandwidth utilization peak utilization...

Страница 157: ...g thresholds Events Defines the action to take when an alarm is triggered The response to an alarm can include recording the alarm in the Log Table or sending a message to a trap manager Note that the...

Страница 158: ...ADVANCED TOPICS 4 16...

Страница 159: ...witch and that the port you are using has not been disabled Check network cabling between the management station and the switch If you cannot connect using Telnet you may have exceeded the maximum num...

Страница 160: ...m the terminal emulation program select the file you want to download set the protocol to XModem and then initialize downloading POST Version V2 58 A08 11 03 2000 Power On Self Test POST Int Loopback...

Страница 161: ...ess Enter to open the Log on screen For details on managing the switch refer to Chapter 2 for information on the out of band console interface or Chapter 3 for information on the Web interface XModem...

Страница 162: ...TROUBLESHOOTING A 4...

Страница 163: ...ect to the switch for out of band console configuration The onboard menu driven configuration program can be accessed from a terminal or a PC running a terminal emulation program The pin assignments u...

Страница 164: ...DTE Pin BB 104 RxD Received Data 2 2 BA 103 TxD Transmitted Data 3 3 AB 102 SGND Signal Ground 5 5 No other pins are used Switch s 9 Pin Serial Port Null Modem PC s 9 Pin DTE Port 2 RXD TXD 3 TXD 3 TX...

Страница 165: ...eric Attribute Registration Protocol GARP GARP is a protocol that can be used by endstations and switches to register and propagate multicast group membership information in a switched environment so...

Страница 166: ...Query and IGMP Report packets transferred between IP Multicast Routers and IP Multicast host groups to identify IP Multicast group members Internet Control Message Protocol ICMP Commonly used to send...

Страница 167: ...is layer handles the routing functions for data moving from one open system to another Link Aggregation See Port Trunk Management Information Base MIB An acronym for Management Information Base It is...

Страница 168: ...uired in standard SNMP and can set alarms on a variety of traffic conditions including specific error types Simple Network Management Protocol SNMP The application protocol in the Internet suite of pr...

Страница 169: ...less of their physical location or connection point in the network A VLAN serves as a logical workgroup with no physical barriers and allows users to share information and resources as though located...

Страница 170: ...GLOSSARY Glossary 6...

Страница 171: ...2 45 3 38 4 11 D default gateway 2 12 3 13 device control menu 2 26 3 20 downloading software 2 23 3 18 A 2 E EliteView 1 3 F firmware information 2 9 3 11 upgrades A 2 version 2 9 flow control confi...

Страница 172: ...3 56 static address table 2 36 3 29 N network configuration 2 11 3 13 network monitor menu 2 53 3 45 O out of band connection 1 2 P password configuration 2 21 3 17 pin assignments 25 pin DTE port B 2...

Страница 173: ...46 port 2 54 3 45 RMON 2 58 3 49 switch configuration 2 26 3 20 system information 2 7 3 9 restart menu 2 70 3 57 T tagged ports 4 6 TFTP downloads 2 23 3 18 timeout console 2 17 3 7 traffic classes c...

Страница 174: ...INDEX Index 4 X XModem downloads A 2...

Страница 175: ......

Страница 176: ...49 707 2460 Spain 34 93 477 4920 Fax 34 93 477 3774 UK 44 0 1188 748700 Fax 44 0 1189 748701 Southern Europe 33 0 1 41 38 32 43 Fax 33 0 1 41 38 01 58 Central Eastern Europe 49 0 89 92861 200 Fax 49 0...

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