Switch Mode, Default Port Vlan ID | Enterasys Networks ELS10-27TX

Introduction

1.3.5 Switch Mode

The unit operates in either an 802.1D or 802.1Q mode. The mode must be selected by the user and applies to all ports. The unit will not operate in a mixed mode. The default is to operate in 802.1D mode.

For further information, refer to Switch Command in Chapter 2, Enhancements to LCM Commands.

1.3.6 Assigning Ports to a VLAN

A port becomes a member of a VLAN, by using the VLAN command.

For further information, refer to the Port Command in Chapter 2, Enhancements to LCM Commands.

1.3.7 Default Port VLAN ID

If the unit is operating in 802.1Q mode, then each port will be configured with a default port VLAN ID (PVID). The default value for each port will be the default VLAN ID of 0x001. You are allowed to modify this on a per port basis.

When 802.1Q was developed, it was decided to configure a default VLAN ID for a port. If a packet is received on a port that does not have a VLAN ID or does not have a VLAN ID of zero, the default VLAN ID will be inserted. Once this tag is in place the packet is sent to the forwarding engine. Once the forwarding engine receives it, it will use this tag to determine which VLAN to restrict this packet to.

The sub-command of the port command known as the VLAN sub-command is used to set the default VLAN ID for the port.

NOTE

There is a sub-command of the port command known as the VLAN sub-command. This is not used to make a port a member of the VLAN, and is not directly used in the forwarding and filtering decision.

For further information, refer to Port Command in Chapter 2, Enhancements to LCM Commands.

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Enterasys Networks ELS10-27TX manual Switch Mode, Assigning Ports to a Vlan, Default Port Vlan ID

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 Configuring Vlans Using Snmp Vlan MIB Objects Xiii Workgroup MIB Objects Configuring Workgroups Using LCMConfiguring Workgroups Using Snmp Appendix a Virtual Lans Vlans Index About this Supplement Getting Help Your email address Document Conventions Related Documentation Document Title Part Number Using Vlans on the ELS10-27TX Product Overview Ieee 802.1Q Standard Vlan Access Ports 802.1Q Mode 802.1Q Mode on ELS10-27TXVlan Hybrid Ports 802.1Q Mode 3 802.1Q Trunk Ports Preserving Priority Accessing Network Management Using VLANs Non-Preserving Priority Assigning Ports to a Vlan Switch ModeDefault Port Vlan ID Restricting VLANs 802.1Q Mode Enable Gvrp Virtual Workgroups will only operate in 802.1D mode Workgroups Default Gateway Installation and ManagementPage Overview LCM Conventions LCM Command Summary Subset of LCM Commands LCM Command Syntax Erase Basic LCM CommandsHelp Exit or Logout LCM Commands Enable Command Address Limit Route Command Port Command Port Command Enhancements to LCM Commands Switch Command Trap Control Command Vlan Command ELS10-27vlan add 5-9 bluePage Configuring Vlans Using Snmp Overview Config Table Modifying a Vlan Modifying, Creating and Deleting VLANsStep Action Creating a Vlan Deleting a Vlan Config Egress List Modifying a Config Egress List Entry Filter Gvrp Table Modifying, Creating or Deleting a Filter Gvrp Table Entry Creating a Filter Deleting a Filter Deleting a Static MAC Entry Static MAC EntryCreating a Static MAC Entry Bridge Configuration Vlan Version Number Operating Mode VlanOperatingMode Reset VlanReset Gvrp Enable VlanGVRPEnable Syntax Octet String Size Access List VlanAccessList Vlan VlanConfigVlan VlanConfigEntry Configuration EntriesEntry VlanConfigEntry Index VlanConfigIndex VID VlanConfigVID Ports VlanConfigPorts IP VlanConfigIP IP Mask VlanConfigIPMask Name VlanConfigName Status VlanConfigStatus Establish VlanConfigEstablish Active VlanNumActiveEntries Static Configured VlanNumConfiguredEntriesDevice Entries Configuration Table VlanConfigTable Maximum Number VlanMaxNumEntries Egress Table Egress Table VlanConfigEgressTable Egress Entry VlanConfigEgressEntry VlanConfigEgressEntry Index VlanEgressIndex VID VlanEgressVID List VlanEgressList Status VlanEgressStatus Entry VlanFilterGVRPEntry Filter GvrpGvrp VlanFilterGVRPTable VlanFilterGVRPIndex VlanFilterGVRPEntry VID VlanFilterGVRPVID List VlanFilterGVRPList Status VlanFilterGVRPStatus EstablishVID VlanFilterGVRPEstablishVID Entry VlanStaticEntry Static MAC Address EntriesTable VlanStaticTable VID VlanStaticVID VlanStaticEntry MAC VlanStaticMAC Port VlanStaticPort Establish VlanStaticEstablish Page Chapter Configuring Workgroups Using LCM Overview Workgroup Configuration Examples Workgroup Default Workgroup Superset LCM Workgroup Commands Workgroups are only valid in 802.1D mode ELS10-27workgroup 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 Current Count WorkGroupCurrentCount MAX Count WorkGroupMaxCount Table WorkGroupTable Entry WorkGroupEntry Number WorkGroupNumber Name WorkGroupName Ports WorkGroupPorts Type WorkGroupType Appendix a Virtual Lans Vlans Vlans and Frame Tagging Vlan Vlan Y ELS10-27TX Vlan Configuration Vlan ID Vlan Egress Vlan Access PortsPorts in Vlan Figure A-2. Vlan Access Ports Index Numerics Snmp Index