Document No. 10-300077, Issue 2 13-29
Configuring Access Lists
To view the current total number of entries for the CPU, expand the
Routing > L3 Forwarding Cache folders, and then click Cache
Configuration. The Total Current Entries field displays the current total
entries for the CPU.
To view the current total number of entries for each F-chip, expand the
Routing > L3 Forwarding Cache folders, and then click Cache Contents.
The Active FE Web page is displayed in the content pane. See Figure 13-7.
As long as these totals stay under 70K, it is safe to increase the IP Unicast
Maximum Entries to prevent overflow. If the switch is not routing IPX or
has minimal IP Multicast traffic, it is generally safe to double the IP Unicas t
maximum to 30,000.
When you enable an ACL, the switch may change the maximum number of
forwarding entries for IP unicast traffic to improve the performance of the
switch. If the maximum number of entries is set to:
■Less than 15,000, the switch automatically doubles the setting.
■Between 15,000 and 30,000, the switch changes the setting to
30,000.
■Greater than 30,000, the switch does not change the setting.
*Important: Changing the Maximum Cache Entries parameter
affects every L3-enabled F-chip on the P580/P882.
Web Agent
Procedure To use the Web Agent to manually double the IP Unicast maximum to
30,000 entries:
1. In the navigation pane, expand the Routing > L3 Forwarding Cache,
and then click Cache Configuration. The Layer-3 Forwarding Cache
Configuration Web page is displayed in the content pane.
2. In the Maximum Entries field for IP Unicast traffic, enter 30000.
3. Click APPLY.
CLI Command To use the CLI to manually double the IP Unicast maximum to 30,000
entries, enter the following CLI com mand:
(configure)# ip unicast route-cache max-size 3000 0