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Specifying an untagged endpoint, Specifying a single-tagged endpoint – Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) User Manual

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Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide

53-1003031-02

Configuring MPLS VLLs

4

Specifying an untagged endpoint

Untagged ports are not associated with any VLAN. A port must be a member of the default VLAN
before it can be used in a VLL configuration as an untagged port. Upon configuration as the
endpoint of a VLL, the port is taken out of the default VLAN. This means no local broadcast traffic
includes this port. A VLL untagged port does not belong to any VLAN. When the port is currently a
member of a regular VLAN or another VLL, the configuration attempt must be rejected.

NOTE

When a port is added as an untagged port into a VLL, a VLAN must not be defined under the VLL.
When a VLAN is configured under the VLL, the configuration to add an untagged port is rejected.

To specify an untagged endpoint for a VLL.

Brocade(config-mpls-vll)# untagged e 2/1

Syntax: untagged [ethernet] portnum

NOTE

Foundry Discovery Protocol (FDP) must not be enabled on an untagged VPLS or VLL endpoint.

Specifying a single-tagged endpoint

Tagged ports are configured under a VLAN ID. This VLAN ID is only meaningful for this tagged port.
Another tagged port may use the same VLAN ID but the two ports are not under the same VLAN.

For tagged ports, a vlan-id, port pair constitutes a VLL endpoint. One VLL may configure a VLAN ID
on one port and another VLL may reuse the same VLAN ID on another port. This capability is know
as VLAN ID reuse.

As with regular VLANs, when a port is currently a member of a non-default VLAN as an untagged
port, it must be returned to the default VLAN before it can be assigned to a VLL as a tagged port.

To specify a tagged endpoint for a VLL.

Brocade(config-mpls-vll)# vlan 200

Brocade(config-mpls-vll-vlan)# tagged e 3/11

Syntax: vlan num

Syntax: tagged [ethernet] slot/port

NOTE

A tagged port can be a part of one or more VLLs, and at the same time be part of one or more regular
VLANs and one or more VPLSs as a tagged member.