Switch Database Template (SDM)

We can use SDM template to configure the switch to optimize support for specific features depending on how the switched is used in the network. There are 3 types of features.

1. Routing : maximizes system resources for unicast routing.
2. VLANs : Maximizes number of unicast MAC address.
3. Default :  balancing to all functions

Here is the approximate number of feature resources allowed by each template.

Configuration 

In configuration mode.

-sdm prefer vlan 

-sdm prefer routing 

Verification

show sdm prefer

Test_switch#sh 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 IPv4 IGMP groups + multicast routes:    1K

  number of IPv4 unicast routes:                    8K

    number of directly-connected IPv4 hosts:        6K

    number of indirect IPv4 routes:                 2K

  number of IPv4 policy based routing aces:         0

  number of IPv4/MAC qos aces:                      0.75K

  number of IPv4/MAC security aces:                 1K