Enterasys Networks manual 802.1Q Mode on ELS10-27TX, Vlan Hybrid Ports 802.1Q Mode

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Introduction

The 802.1Q VLANs spans multiple systems and could span the entire network. Unlike Workgroups, VLANs are not limited within a particular unit. The maximum number of VLANs supported in 802.1Q mode on ELS10-27TX is 32.

1.3 802.1Q MODE ON ELS10-27TX

The SmartSTACK Ethernet ELS10-27TX operates in two modes: 802.1D and 802.1Q. While operating in 802.1Q mode, ports can be configured to allow non- 802.1Q devices to operate in this environment.

1.3.1 VLAN Hybrid Ports (802.1Q Mode)

A VLAN Hybrid port is used to connect one or more VLAN-aware or VLAN- unaware devices to the switch. Both tagged and untagged frames can be received and transmitted on Hybrid ports.

If a port on the ELS10-27TX is not configured as an Access port, it is a Hybrid port.

1.3.2 VLAN Access Ports (802.1Q Mode)

The VLAN feature must be used only when non-802.1Q devices are attached to this port. These ports are known as access ports.

An access command is a sub-command of the port command. An access port is used to allow each segment to have multiple tag-unaware devices on it, and to have those devices communicating on multiple VLANs.

An access port has three major characteristics:

1. When a packet is received, it will always insert a tag into the packet.

NOTE

Tag-aware devices should not exist on a segment connected to an access port.

2.When a port transmits a packet, it always strips off the tag, even if it does not match the default VLAN ID for that port.

3.Additional entries must be placed into the database to support it. When addresses are learned on access ports, additional MAC addresses/VLAN ID pairs are placed into the database to avoid flooding and to establish connectivity.

For further information on Access Ports, refer to Appendix A, Virtual LANs (VLANs).

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Contents SmartSTACK Ethernet ELS10-27TX Supplement Page Page FCC Notice Cabletron SYSTEMS, INC Program License Agreement Page Page Page Cabletron Systems Limited Program License Agreement Viii Page Declaration of Conformity Contents Vlan MIB Objects Configuring Vlans Using SnmpXiii Appendix a Virtual Lans Vlans Index Configuring Workgroups Using LCMConfiguring Workgroups Using Snmp Workgroup MIB ObjectsAbout this Supplement Your email address Getting HelpDocument Conventions Document Title Part Number Related DocumentationProduct Overview Using Vlans on the ELS10-27TXIeee 802.1Q Standard Vlan Access Ports 802.1Q Mode 802.1Q Mode on ELS10-27TXVlan Hybrid Ports 802.1Q Mode Preserving Priority 3 802.1Q Trunk PortsNon-Preserving Priority Accessing Network Management Using VLANsAssigning Ports to a Vlan Switch ModeDefault Port Vlan ID Enable Gvrp Restricting VLANs 802.1Q ModeWorkgroups Virtual Workgroups will only operate in 802.1D modeInstallation and Management Default GatewayPage LCM Conventions OverviewSubset of LCM Commands LCM Command SummaryLCM Command Syntax Exit or Logout Basic LCM CommandsHelp EraseEnable Command Address Limit LCM CommandsRoute Command Port Command Port CommandEnhancements to LCM Commands Switch Command Trap Control Command ELS10-27vlan add 5-9 blue Vlan CommandPage Config Table Configuring Vlans Using Snmp OverviewModifying a Vlan Modifying, Creating and Deleting VLANsStep Action Deleting a Vlan Creating a VlanConfig Egress List Modifying a Config Egress List Entry Modifying, Creating or Deleting a Filter Gvrp Table Entry Filter Gvrp TableDeleting a Filter Creating a FilterDeleting a Static MAC Entry Static MAC EntryCreating a Static MAC Entry Vlan Version Number Bridge ConfigurationReset VlanReset Operating Mode VlanOperatingModeSyntax Octet String Size Gvrp Enable VlanGVRPEnableVlan VlanConfigVlan Access List VlanAccessListVlanConfigEntry Configuration EntriesEntry VlanConfigEntry VID VlanConfigVID Index VlanConfigIndexIP VlanConfigIP Ports VlanConfigPortsName VlanConfigName IP Mask VlanConfigIPMaskEstablish VlanConfigEstablish Status VlanConfigStatusActive VlanNumActiveEntries Static Configured VlanNumConfiguredEntriesDevice Entries Maximum Number VlanMaxNumEntries Configuration Table VlanConfigTableEgress Entry VlanConfigEgressEntry Egress Table Egress Table VlanConfigEgressTableIndex VlanEgressIndex VlanConfigEgressEntryList VlanEgressList VID VlanEgressVIDStatus VlanEgressStatus Entry VlanFilterGVRPEntry Filter GvrpGvrp VlanFilterGVRPTable VlanFilterGVRPEntry VlanFilterGVRPIndexList VlanFilterGVRPList VID VlanFilterGVRPVIDEstablishVID VlanFilterGVRPEstablishVID Status VlanFilterGVRPStatusEntry VlanStaticEntry Static MAC Address EntriesTable VlanStaticTable VlanStaticEntry VID VlanStaticVIDPort VlanStaticPort MAC VlanStaticMACEstablish VlanStaticEstablish Page Chapter Configuring Workgroups Using LCM Overview Workgroup Default Workgroup Configuration ExamplesWorkgroup Superset Workgroups are only valid in 802.1D mode LCM Workgroup CommandsELS10-27workgroup omega Page Chapter Configuring Workgroups Using Snmp Overview Workgroup Configuration Procedures Configuring Workgroups Using Snmp Page Next Number WorkGroupNextNumber Workgroups Using SnmpChapter Workgroup MIB Objects Overview MAX Count WorkGroupMaxCount Current Count WorkGroupCurrentCountTable WorkGroupTable Entry WorkGroupEntry Name WorkGroupName Number WorkGroupNumberType WorkGroupType Ports WorkGroupPortsVlan Vlan Y Appendix a Virtual Lans Vlans Vlans and Frame TaggingVlan ID ELS10-27TX Vlan ConfigurationVlan Egress Vlan Access PortsPorts in Vlan Figure A-2. Vlan Access Ports Numerics IndexSnmp Index