Install guide

30 Bridging Enhancements Release Note
Software Version 2.9.1
C613-10486-00 REV C
Retaining or Stripping VLAN Tags
By default, when an AR400 or AR700 Series router receives a tagged packet on
an Eth or VLAN interface and bridges it, the bridge strips out the packet’s
VLAN tag. This enhancement enables you to set the bridge to instead retain the
tag, by using off, no or false in the new command:
set bridge stripvlantag={on|off|yes|no|true|false}
The default is on. To see whether stripping is turned on or off, use the
command:
show bridge
and check the new StripVlantag field.
Command Changes
The following table summarises the new and modified commands:
Command Reference Updates
This section describes each new command and the changed portions of
modified commands and output screens. For modified commands and output,
the new parameters, options, and fields are shown in bold.
add vlan bridge
Syntax ADD VLAN={vlan-name|1..4094} BRIDge
[DEVICELimit={NONE|1..250}]
[AGEingtimer{NONE|0..10000001}]
■ where vlan-name is a unique name for the VLAN 1 to 32 characters long.
Valid characters are uppercase and lowercase letters, digits, the
underscore, and hyphen. The vlan-name cannot be a number or all.
Description This command enables bridging between the switch ports that are members of
the specified VLAN, and a single virtual port configured on the bridge. The
VLAN forwards all frames to the bridge’s single virtual port. Frames destined
for remote stations are forwarded to the wide area port. Frames destined for
stations on the local bridge are sent to the VLAN and port appropriate to that
station.
The vlan parameter specifies a VLAN. Up to 16 VLANs can be configured
using this command, but each must be separately entered.
For PPP operation a maximum of 16 VLANs can be attached to the bridge.
When multiple VLANs are attached to the bridge, all the frames transmitted or
received by the bridge must be VLAN tagged. To ensure this you must
configure the set bridge stripvlantag to no.
The devicelimit parameter sets the maximum number of devices connected to
the VLAN that can send packets over the VLAN to WAN bridge. If none is
Command Change
set bridge stripvlantag New command
show bridge New StripVlantag field