Version 6.6 843 October 2014
Installation & Operation Manual 48. Recovering the OAM VLAN Settings
48 Recovering the OAM VLAN Settings
The tools vlan command allows you to configure the Media Gateway's OAM VLAN
tag to match the setting in the site IP network. This may be needed to re-establish
connectivity with the Mediant 8000 in one of the following cases:
The VLAN configuration of the OAM subnet to which the Media Gateway is
connected was changed.
The Backup file was restored on the Mediant 8000 with the OAM VLAN settings
that differ from the current network configuration.
The procedures described below, are provided mostly for backward-compatibility (if
you have configured the IP Network in a previous version). This procedure is not
relevant if you have configured the IP Network according to the section 'Connecting to
IP Network' on page 116.
To recover the OAM VLAN settings:
1. Connect to the CLI interface on the Active SC board (typically located in Slot 1)
via RS-232 serial console. For more information, see Section 'Connecting to the
CLI via an RS-232 Serial Console' on page 109.
2. Login as root user. For more information, see Section 'Logging in as a Root User'
on page 115.
3. At the prompt, type tools vlan and press Enter.
client238::~# tools vlan
CONFIGURE OAM VLAN TAG
4. You are prompted to enter the OAM VLAN tag, type the appropriate number and
press Enter.
• To disable the VLAN configuration - enter 0
• To enable the VLAN configuration - enter the OAM VLAN tag ID
5. Confirm the action.
Enter OAM VLAN tag (0-no VLAN / 2-3999) : 4
Configure OAM VLAN tag 4
Are you sure? (y/[n]) : y
The ES boards are reset and the new OAM VLAN settings are applied to the
Media Gateway. As soon as the ES boards return to service (it may take up to 10
min), you can connect to the management interfaces on the SC board (SNMP or
CLI) via the IP network.
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