Avaya Cajun P882 User Manual page 241

Parameter
Hash Table
Bucket Info
Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, Version v5.3.1
Table 6-3. Address Table Instance Parameters
Definition
Select one of the following hash table parameters:
Size - Select the size to alter the space available for this address
table. The selection range is 16 to 8192 incrementing in the
powers of 2.
Note:
The number of addresses for a given hash table is 4:1 (for
example, if you have a hash table of 16 bytes, the VLAN
can hold 64 addresses in it's table instance.
optimal Bucket Utilization, Hash Table size should
be ¼ times the number of expected AFT entries
(MAC entries) on the VLAN.
Auto Increment - Select an option to allow the hash table to
grow dynamically larger if more addresses are discovered. The
options are:
True - Enables auto-increment of the hash table.
False - Disables auto-increment to prevent the hash table from
growing dynamically at the risk of extra flooding.
Displays parameters to monitor the efficiency of the hash table
allocations.
Options include:
• Count - The Total Number of Entries (MAC Addresses) for
that VLAN
• Capacity - Indicates bucket capacity.
• Utilization - The number of entries divided by the total
bucket capacity.
3. Click:
APPLY to save your changes
CANCEL to restore previous settings
Delete All Learned Entries if you want to relearn the
entire table
Delete Invalid Learned Entries if you want to delete all
entries that are currently aged out.
* Note: If you change the Hash Table Size, the switch relearns all
addresses in that table, causing the switch to flood
packets for a few seconds.
Managing the Address Forwarding Table
To achieve
2 of 2
6-13