Software Configuration Guide, Cisco IOS Release 15.2(2)E (Catalyst 2960, 2960-S, 2960-SF and 2960-Plus Switches)
Configuring SDM Templates
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Configuring SDM Templates

Configuring SDM Templates

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to http:/​/​www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

Information About Configuring SDM Templates

Understanding the SDM Templates

You can use SDM templates to configure system resources in the switch to optimize support for specific features, depending on how the switch is used in the network. You can select a template to provide maximum system usage for some functions or use the default template to balance resources.

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

Configuring the Switch SDM Template

Default SDM Template

The default template is the default Switch Database Management (SDM) desktop template.

SDM Template Configuration Guidelines

  • When you select and configure SDM templates, you must reload the switch for the configuration to take effect.

  • If you try to configure IPv6 features without first selecting a dual IPv4 and IPv6 template, a warning message appears.

  • Using the dual stack templates results in less TCAM capacity allowed for each resource, so do not use it if you plan to forward only IPv4 traffic.

Setting the SDM Template

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

SUMMARY STEPS

    1.    enable

    2.    configure terminal

    3.    end

    4.    reload


DETAILED STEPS
     Command or ActionPurpose
    Step 1 enable


    Example:
    Switch> enable
    
    
     

    Enables privileged EXEC mode. Enter your password if prompted.

     

    Step 2configure terminal


    Example:
    
    Switch# configure terminal
    
    
     

    Enters the global configuration mode.

     
    Step 3end


    Example:
    
    Switch(config)# end
    
    
     

    Returns to privileged EXEC mode.

     
    Step 4reload


    Example:
    Switch# reload 
    
    
     

    Reloads the operating system.

     
    Related Concepts

    Displaying the SDM Templates

    Use the show sdm prefer privileged EXEC command with no parameters to display the active template.

    To display the resource numbers supported by the specified template, use the show sdm prefer [access | default | dual-ipv4-and-ipv6 {default | vlan} | indirect-ipv4-and-ipv6-routing | routing | vlan] privileged EXEC command.


    Note


    On Switch running the LAN Base feature set, routing values shown in all templates are not valid.


    Configuration Examples for SDM Templates

    Examples: Configuring SDM Templates

    Related Concepts

    Examples: Displaying SDM Templates

    This is an example output showing the advanced template information:

    Switch# show sdm prefer 
    
    Showing SDM Template Info
    
    This is the Advanced template.
      Number of VLANs:                                 4094
      Unicast MAC addresses:                           32768
      Overflow Unicast MAC addresses:                  512
      IGMP and Multicast groups:                       8192
      Overflow IGMP and Multicast groups:              512
      Directly connected routes:                       32768
      Indirect routes:                                 8192
      Security Access Control Entries:                 3072
      QoS Access Control Entries:                      2816
      Policy Based Routing ACEs:                       1024
      Netflow ACEs:                                    1024
      Input Microflow policer ACEs:                    256
      Output Microflow policer ACEs:                   256
      Flow SPAN ACEs:                                  256
      Tunnels:                                         256
      Control Plane Entries:                           512
      Input Netflow flows:                             8192
      Output Netflow flows:                            16384
    These numbers are typical for L2 and IPv4 features.
    Some features such as IPv6, use up double the entry size;
    so only half as many entries can be created.
    
    
    Switch#
    		
    

    This is an example output showing the VLAN template information:

     
    Switch# show sdm prefer vlan
    
    Showing SDM Template Info
    
    This is the VLAN template for a typical Layer 2 network.
      Number of VLANs:                                 4094
      Unicast MAC addresses:                           32768
      Overflow Unicast MAC addresses:                  512
      IGMP and Multicast groups:                       8192
      Overflow IGMP and Multicast groups:              512
      Directly connected routes:                       32768
      Indirect routes:                                 8192
      Security Access Control Entries:                 3072
      QoS Access Control Entries:                      3072
      Policy Based Routing ACEs:                       0
      Netflow ACEs:                                    1024
      Input Microflow policer ACEs:                    0
      Output Microflow policer ACEs:                   0
      Flow SPAN ACEs:                                  256
      Tunnels:                                         0
      Control Plane Entries:                           512
      Input Netflow flows:                             16384
      Output Netflow flows:                            8192
    These numbers are typical for L2 and IPv4 features.
    Some features such as IPv6, use up double the entry size;
    so only half as many entries can be created.
    
    Switch#

    Additional References for SDM Templates

    Related Documents

    Related Topic Document Title
    SDM command reference  
    VLAN configuration guide  

    Standards and RFCs

    Standard/RFC Title
    None

    MIBs

    MIB MIBs Link
    All supported MIBs for this release.

    To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

    http:/​/​www.cisco.com/​go/​mibs

    Technical Assistance

    Description Link

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    To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds.

    Access to most tools on the Cisco Support website requires a Cisco.com user ID and password.

    http:/​/​www.cisco.com/​support