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KTI Networks KGS-2404 manual Data Link Layer, IEEE 802.2 LLC IEEE802.3 CSMA/CD MAC, Physical Layer

Models: KGS-2404

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Data

Data

Link

Layer

IEEE 802.2 LLC

IEEE802.3 CSMA/CD MAC

Physical

Layer

IEEE 802.3 PLS

IEEE 802.3

MAU

Coaxial/STP/UTP

CS

MII

ANSI X3T9.5 PMD

Fiber

This above diagram shows the Ethernet architecture, LLC sub-layer and MAC sub-layer, which are responded to the Data Link layer, and transceivers, which are responded to the Physical layer in OSI model. In this section, we are mainly describing the MAC sub-layer.

Logical Link Control (LLC)

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 Ethernet MAC and upper layers in the protocol stack, usually Network layer, which is nothing to do with the nature of the LAN. So it can operate over other different LAN technology such as Token Ring, FDDI and so on. Likewise, for the interface to the MAC layer, LLC defines the services with the interface independent of the medium access technology and with some of the nature of the medium itself.

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KTI Networks KGS-2404 Data Link Layer, IEEE 802.2 LLC IEEE802.3 CSMA/CD MAC, Physical Layer, CS MII ANSI X3T9.5 PMD Fiber

Contents

KGS-2404 Web Smart 24-Port Gigabit Ethernet Switch User’s ManualDOC.080711 Page Web Smart 24-Port Gigabit Ethernet Switch Users Manual ReleaseTable of Contents 4-4. Maintenance 1.02 Revision HistoryElectronic Emission Notices 06/28/2007About this user’s manual Overview of this user’s manual1-1. Overview of 24-Port GbE Web Smart Switch Key Features in the Device1. Introduction Hardware 1-2. Checklist1-3. Features ManagementSupports to send the trap event while monitored events happened Supports user management and limits one user to loginSupports 802.1Q VLAN Supports on-line plug/unplug SFP modules1-4. View of 24-Port GbE Web Smart Switch 1-4-1. User Interfaces on the Front Panel Button, LEDs and PlugsSystem LED LED Indicators1-4-2. User Interfaces on the Rear Panel 10/100/1000Ethernet TP Port 1 to 24 LED1-5. View of the Optional Modules 2-1-1. Hardware and Cable Installation 2. Installation2-1. Starting 24-Port GbE Web Smart Switch Up Connecting the SFP Module to the Chassis2-1-2. Cabling Requirements TP Port and Cable InstallationPower On Firmware Loading2-1-2-1. Cabling Requirements for TP Ports 2-1-2-2. Cabling Requirements for 1000SX/LX SFP Module1000Base-X TP, Fiber 2-1-2-3. Switch Cascading in TopologyTakes the Delay Time into Account 100Base-TX TPCase2a Port-based VLAN See Fig.2-3 Case 2b Port-based VLAN See Fig.2-4 Page Managing 24-Port GbE Web Smart Switch through Ethernet Port 2-1-3-1. Management through Ethernet Port2-1-4. IP Address Assignment Class A 25 bits All 0s = 128.1.2.128 All 1s= NetworkSubnet 10000000.00000001.00000010.1Prefix LengthNo. of IP matchedNo. of Addressable IP Default gateway 2-2. Typical Applications Fig. 2-11 Peer-to-peer Network Connection Fig. 2-12 Office Network Connection3. Basic Concept and Management 3-1. What’s the EthernetPhysical Layer Data Link LayerIEEE 802.2 LLC IEEE802.3 CSMA/CD MAC IEEE 802.3 PLS IEEE MAU Coaxial/STP/UTP0xAAAA 3-2. Media Access Control MAC 1st byte For example 0x0800 IP datagram 0x0806 ARP 0x0835 RARP 0x8137 IPX datagram 0x86DD IPv6The MAC sub-layer has two primary jobs to do 64 bytes Fig. 3-4 Gigabit Ethernet FrameParameter value/LAN Max. collision domain DTE to DTE BurstLimitTable 3-4 Ethernet parameters for half duplex mode 3-3. Flow Control Frame Reception For a received frame, the MAC will checkBits Bit Bits 3-4. How does a switch work? Extended Distance Limitations How does a switch operate? MAC address tableMac address aging FCFS First Come First Service Strictly Priority All High before LowWeighted Round Robin Transmission schedule3-5. Virtual LAN Page Fig.3-9 Tag Format Untagged frame An Ethernet frame carries no VLAN tag information VLAN-tagged framePriority-tagged frame VLAN IdentifierIndependent VLAN Learning IVL Ingress RuleEgress Rule Shared VLAN Learning SVLNetwork Address NamePort Members Name3-6. Link Aggregation Terminology Link Aggregation IP Address Subnet Mask Default Gateway Password 4. Operation of Web-based Management4-1. Web Management Home Overview The Information of Page Layout 4-2. Configuration Function description 4-2-1. System ConfigurationFunction name Parameter descriptionShow the active gateway of this switch. DHCP Server Show the active IP address of this switch. Active Subnet MaskShow the active subnet mask of this switch. Active Gateway Show the IP address of the DHCP server. Default Lease Time LeftShow the management VLAN number. Password Default 255.255.255.0 Fallback GatewayDefault 192.168.1.254 Management VLAN Default admin Inactivity TimeoutsecsNWay 4-2-2. Port ConfigurationMedia type SpeedFunction description 4-2-3. VLAN Mode ConfigurationFunction name Parameter descriptionTag-based Function description 4-2-4. VLAN Group ConfigurationFunction name Parameter descriptionDelete Group Fig. 4-9 Port-Based VLAN ConfigurationAdd Group Fig. 4-8 Add or Remove VLAN MemberPage Function description 4-2-5. AggregationFunction name Parameter descriptionFunction description 4-2-6. LACPFunction name Parameter descriptionFunction description 4-2-7. RSTPFunction name Parameter descriptionFunction description continue Fig. 4-12 RSTP ConfigurationFunction name Parameter description4-2-8 SupplicantPage Page Port Control AuthenticationPort Mode Port StatusMode Enable or disable 802.1X function RADIUS IP Function descriptionForce Reinitialize for all ports in at once Function description Function name802.1x Parameters Parameter descriptionFunction name 4-2-9 IGMP SnoopingFig. 4-19 IGMP Configuration Function descriptionFunction description 4-2-10. Mirror ConfigurationFunction name Parameter description4-2-11. QoSQuality of Service Configuration Fig. 4-21 QoS ConfigurationFunction name Function nameFunction description Function descriptionFunction description DSCP SettingFunction name Parameter descriptionFunction description 4-2-12 FilterFunction name Parameter descriptionFig. 4-24 Filter Configuration Default enableDHCP Server Allowed Function description 4-2-13 Rate LimitFunction name Parameter descriptionFunction description 4-2-14 Storm ControlFunction name Parameter descriptionMulticast Rate Flooded unicast RateFunction name 4-2-15 SNMPParameters description Function descriptionDefault community name for Trap public Default community name for Get publicDefault community name for Set private Fig. 4-27 SNMP ConfigurationFunction name 4-3. Monitoring4-3-1. Statistics Overview Function descriptionTx Errors Number of bad packets transmitted Rx Errors Number of bad packets receivedFig. 4-28 Statistics Overview for all ports Function description 4-3-2. Detailed StatisticsFunction name Parameter descriptionNumber of 1024-maxlength-byte frames in good and bad packets received Tx Error PacketsShow the counting number of the received error packets. Rx 64 Bytes Tx 64 BytesNumber of short frames 64 bytes with invalid CRC. Rx Jabber Function description 4-3-3. LACP StatusFunction name Parameter descriptionFunction description 4-3-4. RSTP StatusFunction name Parameter descriptionFig. 4-31 RSTP Status Function description 4-3-5. IGMP StatusFunction name Parameter descriptionFunction description 4-3-6. Ping StatusFunction name Parameter descriptionTarget IP address Show the active target IP address. Status Show the received replies number of times. Request timeoutsShow the timeout of request. Average Response times In ms Show the result of the ping status. Received repliesMaintenance Warm Restart Factory Default Software Upgrade 4-4. MaintenanceThere are five functions contained in the maintenance function Configuration File Transfer Logout4-4-1. Warm Restart Function nameFunction description 4-4-2. Factory Default Function nameFunction description Fig. 4-36 Software Upgrade 4-4-3. Software UpgradeSoftware Upgrade Function name4-4-4. Configuration File Transfer Function descriptionFunction name Function description 4-4-5. LogoutFunction name Parameter description5. Maintenance 5-1. Resolving No Link Condition5-2. Q&A Appendix A Technical Specifications FeaturesConnector Hardware SpecificationsConfiguration ƒ Network InterfaceAmbient Temperature ƒ Diagnostic LEDƒ Power Requirement DimensionsQuality of Service QoS Management Software SpecificationsSystem Configuration VLAN FunctionAppendix B MIB Specifications