Demand test descriptions and error codes - Avaya Support

CLAN-BD (Control LAN Circuit Pack)
Note:
Note: IP endpoints can still register to this circuit pack after the warning has been
issued.
The presence of the warning in the error log indicates that the customer needs to look at the
network configuration. The status socket-usage command displays socket usage for
C-LAN circuit packs in a system. This allows the customer to verify that IP endpoint registration
has been evenly distributed, or to determine whether additional TN799x circuit packs are
needed.
Also, even though all C-LANs may be available, all endpoints are configured to be in a few
specific network regions, and may possibly be overloading the C-LANs in those network
regions. This would indicate that additional capacity is required in the affected network regions,
or that network configuration and administration needs to be altered to make it more balanced.
Additional C-LANs can be administered, or existing administration of C-LANs can be changed
using the add/change ip-interfaces commands (see Maintenance Commands for Avaya
Aura Communication Manager, Media Gateways and Servers (03-300431) for details).
Note: When
Note:
a TN799x is replaced or added, re-balancing does not occur. That is, the
system does not un-register an IP endpoint for the purpose of load balancing.
Replaced or added TN799x circuit packs will be detected as the least-used
C-LANs, and IP endpoints will register with them until the socket load is evenly
balanced.
C-LAN congestion controls
The switch activates congestion controls on a C-LAN when it detects a buffer exceeding the
threshold. The switch releases the congestion controls when the C-LAN reports that its buffers
have returned to normal levels.
If congestion: Then the switch:
Persists for a 14-minute interval, Raises MINOR alarm.
Exhausts buffers, Raises MINOR alarm.
Ceases for 12 minutes, Retires MINOR alarm.
Issue 5 May 2009 265