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User Manual

4-4-1-7. Maximum Packet Length

Function name:

Max. Packet Length Status

Function description:

Display the settings of the maximum packet length that each port can accept

in this switch.

Parameter description:

Max. Frame Size for Jumbo Frame(bytes):

Display the settings about the maximum length of the packet that each

port of the switch can accept. Maximum length can be up to 1532 bytes
or 9216 bytes. The default is 1518 bytes.

Fig. 4-32

Publication date: January, 2005
Revision A1

Содержание ES-516G+

Страница 1: ...24 16 Gigabit Web Smart Switch User s Manual Release 1 03...

Страница 2: ...Management Agent of 16 Gigabit Web Smart Switch 14 2 1 3 1 Configuring Management Agent of16 Gigabit Web Smart Switch through Ethernet Port 15 2 1 4 IP AddressAssignment 16 2 2 TYPICAL APPLIC ATIONS 2...

Страница 3: ...7 4 4 1 4 VLAN 88 4 4 1 5 Mirror 90 4 4 1 6 Trap Event 91 4 4 1 7 Maximum Packet Length 92 4 4 2 Warm Restart 93 4 4 3 Factory Default 94 4 4 4 Logout 95 CHAPTER 5 MAINTENANCE 96 5 1 RESOLVING NO LINK...

Страница 4: ...tatement This equipment has been tested and found to comply with the limits for a classA computing device pursuant to Subpart J of part 15 of FCC Rules which are designed to provide reasonable protect...

Страница 5: ...erial interface and Ethernet ports step by step Many explanation in detail of hardware and software functions are shown as well as the examples of the operation for web based interface and text based...

Страница 6: ...Multi Mode SFP Fiber transceiver 1000Mbps LC 10km SFP Fiber transceiver 1000Mbps LC 30km SFP Fiber transceiver 1000Mbps LC 50km SFP Fiber transceiver 1000Mbps BiDi SC 20km 1550nm SFP Fiber WDM transce...

Страница 7: ...etwork Hardware 22 or 14 10 100 1000MbpsAuto negotiation Gigabit Ethernet TP ports 2 10 100 1000Mbps TP or 1000Mbps SFP Fiber dual media auto sense 400KB on chip frame buffer Jumbo frame support Progr...

Страница 8: ...s to send the trap event while monitored events happened Supports default configuration which can be restored to overwrite the current configuration which is working on via Web UI and Reset button of...

Страница 9: ...ont panel of the switch LED display area locating on the left side of the panel contains a Power LED which indicates the power status and 16 ports working status of the switch Power Indication LED RES...

Страница 10: ...1000Mbps Green Ember Lit green when 1000Mbps speed is active Lit ember when 100Mbps speed is active Off when 10Mbps speed is active 1000SX LX Gigabit Fiber Port LED SFP LINK ACT Green Lit when connec...

Страница 11: ...sceiver SFP 0LC 212 10 1000Mbps LC SM 30km SFP Fiber transceiver SFP 0LC 212 30 1000Mbps LC SM 50km SFP Fiber transceiver SFP 0LC 212 50 1000Mbps LC SM 70km SFP Fiber transceiver SFP 0LC 212 70 1000Mb...

Страница 12: ...gabit Web Smart Switch Note If you have no modules please skip this section Fig 2 1 Installation of Optional SFP Fiber Transceiv er Connecting the SFP Module to the Chassis The optional SFP modules ar...

Страница 13: ...u can start having the switch in operation Power On The switch supports 100 240 VAC 50 60 Hz power supply The power supply will automatically convert the local AC power source to DC power It does not...

Страница 14: ...From the viewpoint of connector type there mainly are LC and BIDI SC Gigabit Fiber with multi mode LC SFP module Gigabit Fiber with single mode LC SFP module Gigabit Fiber with BiDi SC 1310nm SFP modu...

Страница 15: ...r Cable 1 0 m Fiber Cable 10 10 m TP to fiber Conv erter 56 Bit Time unit 1ns 1sec 1000 Mega bit Bit Time unit 0 01 s 1sec 100 Mega bit Table 2 2 Sum up all elements bit time delay and the overall bit...

Страница 16: ...using The switch supports both port based VLAN and tag based VLAN They are different in practical deployment especially in physical location The following diagram shows how it works and what the diffe...

Страница 17: ...not access VLAN1 and VLAN3 members but they could access VLAN4 members 3 VLAN3 members could not access VLAN1 VLAN2 and VLAN4 4 VLAN4 members could not access VLAN1 and VLAN3 members but they could a...

Страница 18: ...eb Smart Switch In the way of web user is allowed to startup the switch management function Users can use any one of them to monitor and configure the switch You can touch them through the following p...

Страница 19: ...ernet LAN Def ault Gateway 192 168 1 254 Fig 2 6 Assign a reasonable IP address For example IP 192 168 1 100 Subnet Mask 255 255 255 0 Managing Gigabit Web Smart Switch through Ethernet Port Before yo...

Страница 20: ...classes or categories Each class has its own network range between the network identifier and host identifier in the 32 bits address Each IP address comprises two parts network identifier address and...

Страница 21: ...8 is reserved for loopback function Bit 0 1 7 8 31 0 Network address Host address Class B IP address range between 128 0 0 0 and 191 255 255 255 Each class B network has a 16 bit network prefix follow...

Страница 22: ...mask 255 255 0 0 in default in which the first two bytes is with all 1s This means more than 60 thousands of nodes in flat IP address will be at the same network It s too large to manage practically...

Страница 23: ...25 128 126 24 256 254 23 512 510 22 1024 1022 21 2048 2046 20 4096 4094 19 8192 8190 18 16384 16382 17 32768 32766 16 65536 65534 Table 2 3 According to the scheme above a subnet mask 255 255 255 0 wi...

Страница 24: ...ter Basically it is a routing policy For assigning an IP address to the switch you just have to check what the IP address of the network will be connected with the switch Use the same network address...

Страница 25: ...toAppendix A The switch is suitable for the following applications Central Site Remote site application is used in carrier or ISP See Fig 2 10 Peer to peer application is used in two remote offices Se...

Страница 26: ...User Manual Fig 2 11 Peer to peer Network Connection Fig 2 12 Office Network Connection Publication date January 2005 Revision A1 22...

Страница 27: ...and provided 1000Mbps Now 10G s Ethernet is under approving Although these Ethernet have different speed they still use the same basic functions So they are compatible in software and can connect each...

Страница 28: ...C Data link layer is composed of both the sub layers of MAC and MAC client Here MAC client may be logical link control or bridge relay entity Logical link control supports the interface between the Et...

Страница 29: ...response The DSAP and SSAP pair with some reserved values indicates some well known services listed in the table below 0xAAAA SNAP 0xE0E0 Novell IPX 0xF0F0 NetBios 0xFEFE IOS network layer PDU 0xFFFF...

Страница 30: ...and locally unique address Since this type of address is applied only to the Ethernet LAN media access control MAC they are referred to as MAC addresses The first three bytes are Organizational Uniqu...

Страница 31: ...all bit of DA is 1s it is a broadcast which means all network device except the sender itself can receive the frame and response Ethernet Frame Format There are two major forms of Ethernet frame type...

Страница 32: ...2 3 RAW encapsulation Each of them has different fields following the Length field If the Length Type value is greater than 1500 it means the Length Type acts as Type Different type value means the fr...

Страница 33: ...field in turn The followings summarize what a MAC does before transmitting a frame MAC will assemble the frame First the preamble and Start of Frame delimiter will be put in the fields of PRE and SFD...

Страница 34: ...ices This maximum time is traded off by the collision recovery time and the diameter of the LAN In the original 802 3 specification Ethernet operates in half duplex only Under this condition when in 1...

Страница 35: ...nd receiving frames are processed simultaneously This doubles the total bandwidth Full duplex is much easier than half duplex because it does not involve media contention collision retransmission sche...

Страница 36: ...at that time the device will wait for a period of time known as an inter frame gap time to have the medium clear and stabilized as well as to have the jobs ready such as adjusting buffer counter updat...

Страница 37: ...be a collision happened somewhere or an interface malfunctioned in the LAN When detecting the case the MAC drops the packet and goes back to the ready state If the DA of the received frame exactly ma...

Страница 38: ...the location of the Length Type field of the normal non VLAN frame it will interpret the received frame as a tagged VLAN frame If this happens in a switch the MAC will forward it according to its prio...

Страница 39: ...tilizes CSMA CD to arbitrate who can transmit data to the station s attached in the LAN When more than one station transmits data within the same slot time the signals will collide referred to as coll...

Страница 40: ...en operating in full duplex mode the distance can reach farther than half duplex because it is not limited by the maximum propagation delay time 512 bits time If fiber media is applied the distance ca...

Страница 41: ...e packet broadcasted Due to the size of the MAC address limited MAC address aging function is applied When the MAC address has resided and keeps no update in the table for a long time this means the t...

Страница 42: ...lement and different chips may support different schedule algorithms Most common schedulers are FCFS First Come First Service Strictly Priority All High before Low Weighted Round Robin Set a weight fi...

Страница 43: ...ich always lies on the edge of the LAN For a layer 2 VLAN it assumes it is a logical subset of a physical LAN separated by specific rules such as tag port MAC address and so on In other words they can...

Страница 44: ...twork easily according to the criteria needed for example financial accounting R D and whatever you think it necessary You can also easily move a user to a different location or join a new user somewh...

Страница 45: ...ing the source MAC address is four bytes long and contains VLAN protocol ID and tag control information composed of user priority Canonical Format Indicator CFI and optional VLAN identifier VID Normal...

Страница 46: ...ag field The frame with VID assigned by a port is called PVID Each port can only be assigned a PVID The default value for PVID is 1 the same as VID Ingress filtering The process to check a received pa...

Страница 47: ...nsmitted with the priority accordingly If enabled an egress port will transmit out a tagged packet if the port is connected to a 802 1Q compliant device If an egress port is connected to a non 802 1Q...

Страница 48: ...ngress filtering is disabled VLAN bridge will only check the MAC address table to see if the destination VLAN exists If VLAN does not exist then drop the packet and if both DA and VLAN do not exist fo...

Страница 49: ...ay much more cost beyond your budget and the solution caused by the limitation of hardware performance may not be scalable If the item 2 is the case now you do not have to pay much more extra cost and...

Страница 50: ...to station Here station may be a host or a router Link Aggregation called port trunking sometimes has two types of link configuration including static port trunk and dynamic port trunk Static PortTrun...

Страница 51: ...below IP Address 192 168 1 1 Subnet Mask 255 255 255 0 Default Gateway 192 168 1 254 Password admin Table 4 1 After the 16 Gigabit Web Smart Switch has been finished configuration you can browse it b...

Страница 52: ...rmation of the system including Switch Status TP Port Status Fiber Port Status Aggregation VLAN Mirror Trap Event and Maximum Packet Length With this information you will know the software version use...

Страница 53: ...onnected the port will show just dark if linked green On the left side the main menu tree for web is listed in the page According to the function name in boldface all functions can be divided into thr...

Страница 54: ...ation and Max Packet Length are contained in this function folder for system and network management Each of them will be described in detail orderly in the following sections System Configuration Port...

Страница 55: ...ect and use the new IP to browse for web management Fig 4 3 Function name System Configuration Function description Set IP address subnet mask default gateway system name password and auto logout time...

Страница 56: ...s the total IP number of a network able to support by the amount of 2 power of the bit number of subnet number 2 bit number of subnet number 32 bits Network ID Host ID Network ID Host ID Subnet number...

Страница 57: ...cter and null are acceptable Default Giga Switch Password Set a password for this switch Up to 16 characters are allowed in this parameter Any alphanumeric character is acceptable Default admin Auto L...

Страница 58: ...ode 10 100 1000Mbps and duplex mode full duplex and half duplex The following table summarized the function the media supports Media type NWay Speed Duplex 1000M TP ON OFF 10 100 1000M Full for all Ha...

Страница 59: ...based VLAN is defined by port Any packet coming in or outgoing from any one port of a port based VLAN will be accepted No filtering criterion applies in port based VLAN The only criterion is the physi...

Страница 60: ...r Manual Metro Mode The Metro Mode is a quick configuration VLAN environment method on Port based VLAN It will create 14 or 15 Port based VLAN groups Fig 4 5 Publication date January 2005 Revision A1...

Страница 61: ...members are formed 16 Except Port 16 each port of the switch cannot transmit packets with each other Each port groups a VLAN with Port 16 thus total 15 groups consisting of 2 members are formed 15 16...

Страница 62: ...choose one of VLAN mode the switch will bring you the responded VLAN configuration which keeps the default data You can easily create and delete a VLAN group by pressing Add Group and Delete Group fun...

Страница 63: ...User Manual Fig 4 7 Add Group Create a new port based VLAN or tag based VLAN which depends on the VLAN mode you choose in VLAN mode function Fig 4 8 Publication date January 2005 Revision A1 59...

Страница 64: ...User Manual Delete Group Just tick the check box beside the ID then press the Delete Group button to delete the group Fig 4 9 Publication date January 2005 Revision A1 60...

Страница 65: ...n port to filter unwanted traffic In Rule 1 a given port checks if the given port is a member of the VLAN on which the received packet belongs to to determine forward it or not For example if port 1 r...

Страница 66: ...out port the packet form this port may be tag out But the packet would be untag out if the VID of its tag is the same as the value of Untag VID while Untag VID state is Enable Untag VID Valid range i...

Страница 67: ...there are three Fast Ethernet ports aggregated in a logical port then this logical port has bandwidth three times as high as a single Fast Ethernet port has Function name Aggregation Configuration Fu...

Страница 68: ...s the traffic passed by Port B will be copied to Port A for monitoring Parameter description Sniffer Mode Used for the activation or de activation of Port Mirror function Default is disable Sniffer Po...

Страница 69: ...h Fig 4 13 Function name VLAN Tag Priority Function description In vlan tag there are 3 bits belonging to priority According to these 3 bits we could arrange 8 traffics 0 0 0 0 0 1 0 1 0 0 1 0 1 0 0 1...

Страница 70: ...ult class all other TCP UDP ports such as port 81 82 83 84 85 etc Giving an example when we transmit TCP packets with port number 80 at each of port 2 and port number 81 at port 3 to port 1 until the...

Страница 71: ...Bit 2 According to the arrangement of VLAN tagged priority it can form 8 kinds of traffics including 0 0 0 0 0 1 0 1 0 0 1 0 1 0 0 1 0 1 1 1 0 and 1 1 1 Class 8 kinds of traffic as mentioned above use...

Страница 72: ...at have bit 5 7 of TOS Field appears 0 0 0 from the port 2 and the packets that have bit 5 7 of TOS Field appears 0 0 1 from the port 3 We let the two kinds of packets be transmitted for port 1 until...

Страница 73: ...cording to the arrangement of Bit 5 Bit 7 inTOS Field of IP Header it can form 8 kinds of traffics including 0 0 0 0 0 1 0 1 0 0 1 0 1 0 0 1 0 1 1 1 0 and 1 1 1 Class 8 kinds of traffic as mentioned a...

Страница 74: ...from port 1 Parameter description Disable IP TCP UDP Port Classification Belong to the QoS in L4 Just tick the option button and press Apply button to have this function taken affect Then enter Custo...

Страница 75: ...o has the right to modify these port numbers The display is shown as Fig 4 16 Special TCP UDP class There are two modes for selection including Low and High Default class all other TCP UDP ports There...

Страница 76: ...anual Fig 4 16 Advanced Mode Fig 4 17 Simple Mode Simple Mode Press Simple button is to return to the screen that all L4 port number will disappear See Fig 4 17 Publication date January 2005 Revision...

Страница 77: ...is allowed to set up these 64 kinds of Class that belong to High or Low Priority Parameter description IP Differentiated Services DiffServ Configuration Used for setting up the IP Differentiated Serv...

Страница 78: ...Traffic for Ingress Rate Limiting Set up the limit of Ingress bandwidth for the port you choose Incoming traffic will be discarded if the rate exceeds the value you set up in Data Rate field Pause fr...

Страница 79: ...up the limit of Egress bandwidth for the port you choose Packet transmission will be delayed if the rate exceeds the value you set up in Data Rate field Traffic may be lost if egress buffers run full...

Страница 80: ...users The message will be sent while users tick the trap event individually on the web page shown as below Except Warm Boot and Cold Boot other trap events offer the counter function to help the user...

Страница 81: ...suits the transmission for a large amount of data in the network environment Parameter description Max Frame Size for Jumbo Frame bytes Set up the maximum length of the packet that each port of the s...

Страница 82: ...t the same time If the counting is overflow the counter will be reset and restart counting Function name Statistics Overview Function description Display the summary counting of each port s traffic in...

Страница 83: ...ackets The counting number of the packet received RX Octets Total received bytes Rx High Priority Packets Number of Rx packets classified as high priority Rx Low Priority Packets Number of Rx packets...

Страница 84: ...Rx 128 255 Bytes Number of 127 255 byte frames in good and bad packets received Rx 256 511 Bytes Number of 256 511 byte frames in good and bad packets received Rx 512 1023 Bytes Number of 512 1023 by...

Страница 85: ...h valid CRC Rx Fragments Number of short frames 64 bytes with invalid CRC Rx Jabber Number of long frames according tomax_length register with invalid CRC Rx Drops Frames dropped due to the lack of re...

Страница 86: ...ror Trap Event and Maximum Packet Length are contained in this function folder for port monitor and management Each of them will be described in detail orderly in the following sections Status Warm Re...

Страница 87: ...this device Firmware Version To show the firmware version of this switch Hardware Version To show the hardware version of this switch Serial Number The serial number is assigned by the manufacturer IP...

Страница 88: ...on date January 2005 Revision A1 84 MAC Address To show the Ethernet MAC address of this switch System Name To show the special name for this switch Auto Logout Timer To show the setting of auto logou...

Страница 89: ...the link is connected to a working well device the Link Status will show the current link speed and duplex If the connection is broken it will show Down This is determined by the hardware on both dev...

Страница 90: ...A1 86 Flow Control Show each port s flow control status There are two types of flow control in Ethernet Backpressure for half duplex operation and Pause flow control IEEE802 3x for full duplex operati...

Страница 91: ...Function description Display the current setup of Aggregation Trunking Parameter description Normal Display the ports that do not join any aggregation trunking group Group 1 8 Display the members of...

Страница 92: ...e setting in VLAN mode configuration function ID Display the Group ID Description Display the description defined by administrator is associated with a VLAN group VID Display VLAN identifier Each tag...

Страница 93: ...User Manual Fig 4 29 Metro mode VLAN Publication date January 2005 Revision A1 89...

Страница 94: ...Parameter description Sniffer Mode Display the status the activation or de activation of Port Mirror function Default is disable Sniffer Port Display the port for monitoring Valid port is Port 1 16 an...

Страница 95: ...ap information sent out while pre defined trap events occurred Parameter description These trap functions are as they describe The traps that the switch supports are listed below Boot Warm Boot Cold B...

Страница 96: ...et length that each port can accept in this switch Parameter description Max Frame Size for Jumbo Frame bytes Display the settings about the maximum length of the packet that each port of the switch c...

Страница 97: ...en you must reboot to have the new configuration taken effect Here we are discussing is software reset for the reboot in the main menu Function name Warm Restart Function description Reboot the switch...

Страница 98: ...ory Default Function name Factory Default Function description Factory Default Configuration function can retrieve default setting to replace the working configuration Fig 4 34 Publication date Januar...

Страница 99: ...nd exit the browser the switch will automatically have you logout Besides this manually logout and implicit logout you can set up the parameter of Auto Logout Timer in system configuration function to...

Страница 100: ...rk configuration on Computer C 2 The uplink connection function fails to work The connection ports on another must be connection ports Please check if connection ports are used on that 16 Gigabit Web...

Страница 101: ...orts can be in disable mode force mode or auto polling mode Supports Head of Line HOL blocking prevention Supports broadcast storm filtering Web based management provides the ability to completely man...

Страница 102: ...T ransmission Mode 10 100Mbps support full or half duplex 1000Mbps support full duplex only T ransmission Speed 10 100 1000Mbps for TP 1000Mbps for Fiber Full Forwarding Filtering Packet Rate PPS pac...

Страница 103: ...10 100 1000M TP Port 1 to 16 LINK ACT 10 100 1000Mbps 1000M SFP Fiber Port 15 16 SFP LINK ACT Power Requirement AC Line Voltage 100 240 V Frequency 50 60 Hz Consumption 30W Ambient T emperature 0 to...

Страница 104: ...enable disable any port set VLAN group set Trunk Connection VLAN Function Port Base 802 1Q Tagged allowed up to 256 activ e VLANs in one switch T runk Function Ports trunk connections allowed Bandwid...

Страница 105: ...h OBJECT IDENTIFIER privatetech 2 gs1116cProductId OBJECT IDENTIFIER switch 8 gs1116cProduces OBJECT IDENTIFIER gs1116cProductId 1 gs1116cIllegalLogin TRAP TYPE ENTERPRISE gs1116cProductId DESCRIPTION...

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