Avaya P580 - Manual (Page 239)

Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, Version v5.3.1 6-9
Managing the Address Forwarding Table
Resizing results in the switch utilizing AFT memory more efficiently.
When the switch resizes the Hash Table, all entries are flushed and
must be relearned.
It is highly recommended the default of 40% not be changed.
The affects of varying the Threshold (Util%) are as follows:
■
Increasing Threshold: Gives better memory utilization at the
expense of more frequent flushing, flooding, and relearning.
■
Decreasing Threshold: Gives less efficient memory utilization
but does not flush, flood and relearn as often.
Total Entries, Address Memory, Age and Super-
Age Timers
Overview
You can see the Total Entries and Address Memory. You can
configure address age, auto-sizing threshold, and Super Age timers.
Refer to Figure 6-2.
Total Entries
Display how many address entries are contained in the table.
Address
Memory
Displays how much address memory is currently being used, the
amount of memory still available, and the largest contiguous block
of memory that can exist.
Address Age
and Super Age
timers
■
Address Age Time - defines the length of time addresses
remain active in the address forwarding table.
■
Super Age Time - defines how long inactive addresses are
stored in the address forwarding table before being deleted.
Configuring the AGE and Super Age Timers
Web Agent
Procedure
You can configure the Age Timer and Super Age Timer by using
either the Web Agent or the CLI.
Enter a value in the Age Time field. Aged out addresses become
invalid until the switch sees another packet with the aged out
entry’s source address.The standards-recommended default is 300
seconds.