Specifications

Table Of Contents
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Cisco SCE 2000 and SCE 1000 CLI Command Reference
OL-26797-03
Chapter 2 CLI Command Reference
vlan
An asymmetric environment is one in which the upstream and downstream VLAN tags of the same flow
might not be the same.
The SCE platform is configured by default to work in symmetric environments. A specific command
(a-symmetric skip) is necessary in order to allow correct operation of the SCE platform in an asymmetric
environments, and instruct it to take into consideration that the upstream and downstream of each flow
has potentially different VLAN tags.
Changing VPN Modes
VPNs can only exist in either VLAN symmetric classify or MPLS VPN auto-learn, but these two
modes cannot be enabled simultaneously. When changing from one of these VPN-related modes to
another, keep the following guidelines in mind:
All VPN-based subscribers must be cleared in order to change the tunneling mode. If the connection
with the SM is down, use the no subscriber all with-vpn-mappings CLI command.
All VPN mappings must also be removed. This can only be done via the SM CLU (which means that
the connection with the SM must be up).
Authorization: admin
Examples The following example enables VLAN-based classification.
SCE>enable 10
Password:<cisco>
SCE#config
SCE(config)#interface linecard 0
SCE(config if)#vlan symmetric classify
SCE(config if)#
Related Commands Command Description
vlan translation Sets the VLAN translation constant for the network port side, and specifies
whether to increment or decrement the received VLAN tag.
show interface
linecard vlan
Displays the VLAN tunnel configuration.