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Catalyst 3750 Switch Command Reference
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Chapter 2    Catalyst 3750 Switch  Cisco IOS Commands
  show sdm prefer
Usage Guidelines When you change the SDM template by using the sdm prefer global configuration command, you must 
reload the switch for the configuration to take effect. If you enter the show sdm prefer command before 
you enter the reload privileged EXEC command, the show sdm prefer command shows the template 
currently in use and the template that will become active after a reload.
The numbers displayed for each template represent an approximate maximum number for each feature 
resource. The actual number might vary, depending on the actual number of other features configured. 
Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output 
do not appear, but the lines that contain Output appear.
Examples This is an example of output from the show sdm prefer command, displaying the template in use:
Switch# show sdm prefer
The current template is "desktop default" template.
 The selected template optimizes the resources in
 the switch to support this level of features for
 8 routed interfaces and 1024 VLANs.
  number of unicast mac addresses:             6K
  number of igmp groups + multicast routes:    1K
  number of unicast routes:                    8K
    number of directly connected hosts:        6K
    number of indirect routes:                 2K
  number of policy based routing aces:         0
  number of qos aces:                          512
  number of security aces:                     1K
This is a sample output from the show sdm prefer routing command entered on an aggregator switch:
Switch# show sdm prefer routing
"aggregate routing" template:
 The selected template optimizes the resources in
 the switch to support this level of features for
 8 routed interfaces and 1024 VLANs.
  number of unicast mac addresses:             6K
  number of igmp groups + multicast routes:    1K
  number of unicast routes:                    20K
    number of directly connected hosts:        6K
    number of indirect routes:                 14K
  number of policy based routing aces:         512
  number of qos aces:                          512
  number of security aces:                     1K
This is an example of output from the show sdm prefer routing command entered on a desktop switch:
Switch# show sdm prefer routing
"desktop routing" template:
 The selected template optimizes the resources in
 the switch to support this level of features for
 8 routed interfaces and 1024 VLANs.
  number of unicast mac addresses:             3K
  number of igmp groups + multicast routes:    1K
  number of unicast routes:                    11K
    number of directly connected hosts:        3K
    number of indirect routes:                 8K
  number of policy based routing aces:         512
  number of qos aces:                          512
  number of security aces:                     1K