Ports in Vlan, Vlan Egress | Enterasys Networks ELS10-27TX specs

ELS10-27TX VLAN Configuration

A.2.2 PORTS IN VLAN

A port is made a member of the VLAN by the VLAN command. A port can be a member of multiple VLAN IDs. If a packet is received without a tag, the default VLAN for that port is applied to the packet. The default VLAN ID for a port is set with the port command.

A.2.3 VLAN EGRESS

For hybrid ports, if a tag within the frame matches the PVID of the port, the tag will be stripped. If a tag within the frame does not match the PVID, the frame will be transmitted from the port.

For access ports, the tag will always be stripped.

A.2.4 VLAN ACCESS PORTS

Individual ELS10-27TX ports can be configured as one of two types for the purpose of VLAN configuration: Access or Hybrid. A VLAN Access port is used to connect one or more VLAN-unaware devices to the switch. VLAN tagged frames are not allowed to enter or exit an Access port. If a tagged frame enters the switch on an Access port, the switch will add the PVID to the frame and forward the frame based on it. Only end-user stations which do not support 802.1Q tags should be attached to ports on the switch configured as Access ports.

In Example 1 in Figure A-2, both ports are designated as Access ports. The ports are both configured to be on VLAN X. An untagged frame (1) comes in through the left port and gets tagged with a VLAN X tag (2), based on the incoming port PVID. As the frame exits through the right port, the tag is stripped (3) since the outgoing port is an Access port as well and can only transmit untagged frames.

The frame can propagate through the switch in this example only because both ports are on the same VLAN.

In Example 2 in Figure A-2, both ports are also Access ports, however the port on the left is on VLAN X while the port on the right is on VLAN Y. The untagged frame (1) comes in through the left port and again gets tagged with a VLAN X tag

(2). However, because the outgoing port is on a different VLAN (VLAN Y), the frame is dropped. In general, frames cannot propagate between ports unless both ports belong to the same VLAN.

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Enterasys Networks ELS10-27TX manual Ports in Vlan, Vlan Egress, Vlan Access Ports

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