Extreme Networks ExtremeWare XOS Guide Manual page 236

Virtual LANs
NOTE
You must configure the VMAN tunnel egress, or trunk, port as untagged so that the VMAN header is stripped from
the frame.
6 Configure the switch to use the 802.1p value on the inner tag to assign the packet to the appropriate
egress queue on the egress port, if desired.
Configuring VMANs—BlackDiamond 10K Switch Only
The BlackDiamond 10K switch automatically enables jumbo frames on the ports that you add to a
VMAN.
To configure a VMAN, follow these steps:
1 Create the tunnel by creating the VMAN.
2 Assign a tag value to the VMAN.
3 Add the ports in the tunnel to the VMAN.
4 Configure VMAN member ports as tagged on switch-to-switch ports and untagged on the ingress
and egress ports of the tunnel.
NOTE
You must configure the VMAN tunnel egress, or trunk, port as untagged so that the VMAN header is stripped from
the frame.
5 If you want to configure multicasting on a specified VMAN, take the following steps:
a Enable IP forwarding.
a Enable IP multicasting forwarding.
b Configure IGMP or PIM.
VMAN Example—BlackDiamond 10K Switch
The follow example shows the steps to configure VMAN 1 on the Black Diamond 10808 switch shown
in Figure 11. Beginning with ExtremeWare XOS software version, enable multicasting on the VMAN on
the BlackDiamond 10K series switch.
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ExtremeWare XOS 11.3 Concepts Guide