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Catalyst 3550 Multilayer Switch Software Configuration Guide
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Chapter 7 Administering the Switch
Optimizing System Resources for User-Selected Features
Beginning in privileged EXEC mode, follow these steps to use the SDM template to maximize feature
usage:
After the system reboots, you can use the show sdm prefer privileged EXEC command to verify the new
template configuration. If you use the show sdm prefer command before the reload privileged EXEC
command, the previous template appears instead of the new one.
To return to the default template, use the no sdm prefer global configuration command.
This example shows how to configure a switch with the routing template and verify the configuration:
Switch(config)# sdm prefer routing
Switch(config)# end
Switch# reload
Proceed with reload? [confirm]
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
sdm prefer {access [extended-match] |
extended-match | routing
[extended-match] | vlan}
Specify the SDM template to be used on the switch:
The keywords have these meanings:
•
access—Maximizes the use of QoS classification ACEs and
security ACEs on the switch.
•
routing—Maximizes routing on the switch.
•
vlan—Maximizes VLAN configuration on the switch with no
routing allowed.
•
extended-match—Reformats routing memory space to allow
144-bit Layer 3 TCAM support in the default, access, or routing
template to support WCCP or multi-VRF CE.
The default template (if none of these is configured) balances the use
of unicast MAC addresses, IGMP groups, QoS ACEs, security ACEs,
unicast and multicast routes, routed interfaces, and Layer 2 VLANs.
Step 3
end
Return to privileged EXEC mode.
Step 4
reload
Reload the operating system.