Configuring SDM Templates

Finding Feature Information

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Information About Configuring SDM Templates

Restrictions for SDM Templates

The following are restrictions when using SDM templates:

  • The default template is the only template supported.

SDM Templates

You can use Switch Database Management (SDM) templates to configure system resources to optimize support for specific features, depending on how your device is used in the network.

To allocate ternary content addressable memory (TCAM) resources for different usages, the switch SDM templates prioritize system resources to optimize support for certain features. The templates supported on your device:

  • Default—The default template gives balance to all functions.

Default Templates for Catalyst 2960-CX

The templates for Catalyst 2960-CX switches are applicable for the LAN Base license.

Table 1. Approximate Number of Feature Resources Allowed by Templates

Resource

Default

Unicast MAC addresses

16K

Active VLANs/VLAN IDs

255/4096

NetFlow entries

16K

Etherchannel groups per stack

6

IPv4 IGMP or IPv6 groups

1K IPv4

1K IPv6

Direct routes

2K IPv4

2K IPv6

Indirect routes

1K IPv4

1K IPv6

(16 static routes only)

IPv4 or IPv6 policy-based routing ACEs

0 (IPv4 PBR)

0 (IPv6 PBR)

IPv4 or IPv6 MAC QoS ACEs

0.375K (IPv4 QoS)

0.25K (IPv6 QoS)

IPv4 or IPv6 port or MAC security ACEs

0.375K (IPv4 ACL)

0.375K (IPv6 ACL)

Default Templates for Catalyst 3560-CX

The templates for Catalyst 3560-CX switches are applicable for IP Base and IP Services licenses.

Table 2. Approximate Number of Feature Resources Allowed by Templates

Resource

Default

Unicast MAC addresses

16K

Active VLANs/VLAN IDs

1K/4096

Etherchannel groups per stack

6

IPv4 IGMP or IPv6 groups

1K IPv4

1K IPv6

Direct routes

4K IPv4

4K IPv6

Indirect routes

1K IPv4

1K IPv6

IPv4 or IPv6 policy-based routing ACEs

0.25K (IPv4 PBR)

0.25K (IPv6 PBR)

IPv4 or IPv6 QoS ACEs

0.375K (IPv4 QoS)

0.25K (IPv6 QoS)

IPv4 or IPv6 port or MAC security ACEs

0.375K (IPv4 ACL)

0.375K (IPv6 ACL)

How to Configure SDM Templates

Setting the SDM Template

Follow these steps to use the SDM template to maximize feature usage:

SUMMARY STEPS

  1. enable
  2. configure terminal
  3. sdm prefer { default }
  4. end
  5. reload

DETAILED STEPS

  Command or Action Purpose
Step 1

enable

Example:


Switch> enable

Enables privileged EXEC mode.

  • Enter your password if prompted.

Step 2

configure terminal

Example:


Switch# configure terminal

Enters global configuration mode.

Step 3

sdm prefer { default }

Example:


Switch(config)# sdm prefer lanbase-routing

Specifies the SDM template to be used on the switch. The keywords have these meanings:

  • default —The default template provides balance for all Layer 2, IPv4 and IPv6 functionality.

Use the no sdm prefer command to set the switch to the default template, The default template balances the use of system resources.

Step 4

end

Example:


Switch(config)# end

Returns to privileged EXEC mode.

Step 5

reload

Example:


Switch# reload

Reloads the operating system.

Configuration Examples for SDM Templates

Examples: Displaying SDM Templates

This is an example output showing the default template information.

Example output showing the default template information on a Catalyst 3560-CX switch. 

Switch# show sdm prefer
 
The current template is "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:                  16K
  number of IPv4 IGMP groups + multicast routes:    1K
  number of IPv4 unicast routes:                    5K
  number of directly-connected IPv4 hosts:          4K
  number of indirect IPv4 routes:                   1K
  number of IPv6 multicast groups:                  1K
  number of IPv6 unicast routes:                    5K
  number of directly-connected IPv6 addresses:    		4K
  number of indirect IPv6 unicast routes:         		1K
  number of IPv4 policy based routing aces:         0.25K
  number of IPv4/MAC qos aces:                      0.375k
  number of IPv4/MAC security aces:                 0.375k
  number of IPv6 policy based routing aces:         0.25K
  number of IPv6 qos aces:                          0.25K
  number of IPv6 security aces:                     0.375k

Example output showing the default template information on a Catalyst 2960-CX switch. 

Switch# show sdm prefer
 
The current template is "default" template.
 The selected template optimizes the resources in
 the switch to support this level of features for
 0 routed interfaces and 255 VLANs.

  number of unicast mac addresses:                  16K
  number of IPv4 IGMP groups + multicast routes:    1K
  number of IPv4 unicast routes:                    3K
  number of directly-connected IPv4 hosts:          2K
  number of indirect IPv4 routes:                   1K
  number of IPv6 multicast groups:                  1K
  number of IPv6 unicast routes:                    3K
  number of directly-connected IPv6 addresses:      2K
  number of indirect IPv6 unicast routes:           1K
  number of IPv4 policy based routing aces:         0
  number of IPv4/MAC qos aces:                      0.375k
  number of IPv4/MAC security aces:                 0.375k
  number of IPv6 policy based routing aces:         0
  number of IPv6 qos aces:                          0.25K
  number of IPv6 security aces:                     0.375k

Examples: Configuring SDM Templates

This example shows how to configure the VLAN template: 


   
Switch(config)# sdm prefer lanbase-routing 
Switch(config)# exit
Switch# reload
		Proceed with reload? [confirm]