Lucent Technologies Cajun P220, Operation Manual

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Managing Address Forwarding Tables (Layer 2 & Layer 3)
14 - 2 Cajun P550/P220 Switch Operation Guide
3. In the Super Age Time field, enter a new value . The Super Age Timer marks all
invalid table entries, then checks to see if they remain invalid for the specified
super age interval. This clears the table of entries that are no longer used. The
default value is 7 days.
4. Click APPLY to save your changes, or CANCEL to restore previous settings.
Controlling Reconfiguration of Address Table Sizes
Each VLAN you define creates a separate version of the switch address forwarding table.
When these address tables become large, they may begin to use address space
inefficiently.
If you leave the switch in its default state, it will adjust for growth automatically.
However, this will lead to a few seconds of flooding packets when the address table
reconfigures.
To manually control when a flood event occurs:
1. In the Address Forwarding Table section of the Web Agent window, click Table
Configuration . The Address Forwarding Table Configuration dialog box opens.
2. Enter a new Auto-Sizing Utilization Threshold percentage , if you just want to
cause the table reconfiguration to occur at a different level of usage efficiency. The
default value of 40% is recommended for most applications. Raising the value
might cause the table to be relearned more frequently, and will make address space
usage more efficient.
3. In the Instance IDs column, click the ID number to achieve finer control of
particular tables. The Address Table Instance dialog box opens for the instance ID
selected.
Table 14-1. Address Table Instance Parameters
Parameter Definition
VLAN Association Displays the associated VLAN switch port and opens the
VLAN Switch Port dialog box.
Total Number of Entries Displays the total number of entries for this VLAN.
Entry Type Displays the entry type for this VLAN.
Options include:
• Learned - Entry is dynamically learned.
• Management - Entry is configured by the user
statically.
• Self - Entry is the switch’s own address