Avaya Cajun P882 User Manual page 317

Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, v5.3.1
Layer 3 forwarding entries live for a time that is the maximum of
two timers:
The Age Interval for entries in the layer 3 forwarding cache (The
default setting is 120 seconds. You can set this timer to a value
from 120 to 360 seconds.)
The Age interval timer starts when a new forwarding entry is
added to the layer 3 forwarding cache. Each forwarding entry
has its own timer.
The chassis timer for layer 3 forwarding entries. This timer is an
internal timer that you cannot change. The setting for this timer
is dependent on the number and type of modules (number of F-
Chips) in the chassis.
The chassis timer specifies the number of seconds that the
CPU takes to rebuild all forwarding caches on all F-chips in
the chassis. Each second, the CPU removes expired
forwarding entries from one protocol branch (IP-UNI, IP-
Multi, or IPX) of the forwarding cache on one F-Chip and
then rebuilds the branch.
On a fully populated P882, rebuilding all forwarding caches
on all F-chips takes 400 seconds. On a fully populated P580,
this task takes 160 seconds.
Configuring IP Routing
9-35