Specifications

VLAN Configuration Command Set
Configuring the VLAN Egress List
6-20 SecureStack A2 Configuration Guide
6.3.4 Configuring the VLAN Egress List
Purpose
To assign or remove ports on the egress list of a particular VLAN. This determines which ports on
the switch will be eligible to transmit frames for a particular VLAN. For example, ports 1, 5, 7, 8
could be allowed to transmit frames belonging to VLAN 20 and ports 7,8, 9, 10 could be allowed
to transmit frames tagged with VLAN 30 (a port can belong to multiple VLAN Egress lists). Note
that the Port Egress list for ports 7 and 8 would contain both VLAN 20 and 30.
The port egress type for all ports can be set to tagged, forbidden, or untagged. In general, VLANs
have no egress (except for VLAN 1) until they are configured by static administration, or through
dynamic mechanisms (such as GVRP).
Setting a port to forbidden prevents it from participating in the specified VLAN and ensures that
any dynamic requests (either through GVRP or dynamic egress) for the port to join the VLAN will
be ignored. Setting a port to untagged allows it to transmit frames without a tag header. This setting
is usually used to configure a port connected to an end user device. Frames sent between VLAN
aware switches are typically tagged.
The default VLAN defaults its egress to untagged for all ports.
Commands
The commands used to configure VLAN egress and dynamic VLAN egress are listed below and
described in the associated section as shown.
• show port egress (Section 6.3.4.1)
• set vlan forbidden (Section 6.3.4.2)
• set vlan egress (Section 6.3.4.3)
• clear vlan egress (Section 6.3.4.4)
• show vlan dynamicegress (Section 6.3.4.5)
• set vlan dynamicegress (Section 6.3.4.6)