- Preface
- Using the Command-Line Interface
-
- Configuring Spanning Tree Protocol
- Configuring Multiple Spanning-Tree Protocol
- Configuring Optional Spanning-Tree Features
- Configuring EtherChannels
- Configuring Link-State Tracking
- Configuring Flex Links and the MAC Address-Table Move Update Feature
- Configuring UniDirectional Link Detection
- Configuring Resilient Ethernet Protocol
-
- Security Features Overview
- Preventing Unauthorized Access
- Controlling Switch Access with Passwords and Privilege Levels
- Configuring TACACS+
- Configuring RADIUS
- Configuring Kerberos
- Configuring Local Authentication and Authorization
- Configuring Secure Shell (SSH)
- Configuring Secure Socket Layer HTTP
- Configuring IPv4 ACLs
- Configuring IPv6 ACLs
- Configuring DHCP
- Configuring IP Source Guard
- Configuring Dynamic ARP Inspection
- Configuring IEEE 802.1x Port-Based Authentication
- Configuring Web-Based Authentication
- Configuring Port-Based Traffic Control
- Configuring IPv6 First Hop Security
- Configuring Cisco TrustSec
- Configuring FIPS
- Index
Configuring SDM Templates
- Finding Feature Information
- Information About Configuring SDM Templates
- How to Configure SDM Templates
- Configuration Examples for SDM Templates
- Additional References for SDM Templates
- Feature History and Information for 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
Restrictions for SDM Templates
The following are restrictions when using SDM templates:
The switch supports homogeneous stacking, but does not support mixed stacking.
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. You can select a template to provide maximum system usage for some functions: for example, use the default template to balance resources, and use the access template to obtain maximum ACL usage. The switch SDM templates allocate system hardware resources for different uses.
You can select SDM templates for IP Version 4 (IPv4) to optimize these features on switches running the IP Lite feature set:
![]() Note | When the switch is running the LAN Base feature set, you must use the default template. |
IPv4—The IPv4 template provides maximum support for IPv4. No IPv6 support is available on this template.
VLAN—The VLAN template provides Layer 2 functionality and the maximum number of unicast MAC addresses.
Default—The default template gives balance to all functions providing support for Layer 2, IPv4 and IPv6 functionality.
![]() Note | Use the default template when configuring IPv4 static routing on SVIs on switches running the LAN Base feature set. You can configure up to 16 static routes. |
For information about homogeneous stacks, see the Catalyst 2960-XR Switch Stacking Configuration Guide.
After you change the template and the system reboots, you can use the show sdm prefer privileged EXEC command to verify the new template configuration. 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 becomes active after a reload.
SDM Template Resources
You can use SDM templates to configure system resources to optimize support for specific features, depending on how your device is used in the network. You can select a template to provide maximum system usage for some functions.
To allocate ternary content addressable memory (TCAM) resources for different usages, the switch SDM templates prioritize system resources to optimize support for certain features. These templates are supported on your device:
Resource |
Default |
IPv4 |
VLAN |
---|---|---|---|
Unicast MAC addresses |
16 K |
16 K |
32 K |
Active VLANs/VLAN IDs |
1K/4096 |
1K/4096 |
1K/4096 |
IPv4 IGMP groups |
1 K |
1 K |
1 K |
IPv4 unicast routes |
5.25 K |
24 K |
0.5 K |
4 K |
16 K |
0.25 K |
|
1.25 K |
8 K |
0.25 K |
|
IPv4 policy-based routing ACEs |
0.5 K |
0.375 k |
0.5 K |
IPv6 multicast groups: |
1 K |
0 |
1 K |
4 K |
0 |
0.25 K |
|
1.25 K |
0 |
0.25 K |
|
IPv4 MAC QoS ACEs |
0.5 K |
0.5 K |
0.5 K |
IPv4 MAC security ACEs |
1 K |
0.875 k |
1 K |
IPv6 policy-based routing ACEs |
0.25 K |
0 |
0 |
IPv6 QoS ACEs |
0.25 K |
0 |
0.5 K |
IPv6 security ACEs |
0.5 K |
60 |
0.5 K |
SDM Templates and Switch Stacks
All stack members use the same SDM template that is stored on the stack master. When a new switch is added to a stack, as with the switch configuration and VLAN database files, the SDM configuration that is stored on the stack master overrides the template configured on an individual switch.
Version-mismatch (VM) mode has priority over SDM-mismatch mode. If a VM mode condition and an SDM-mismatch mode exist, the switch stack first attempts to resolve the VM-mode condition. You can use the show switch privileged EXEC command to see if any stack members are in SDM-mismatch mode.
How to Configure SDM Templates
Setting the SDM Template
Follow these steps to use the SDM template to maximize feature usage:
DETAILED STEPS
Configuration Examples for SDM Templates
Examples: Displaying SDM Templates
This is an example output showing the default template information:
Switch# show sdm prefer default "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: 5.25K number of directly-connected IPv4 hosts: 4K number of indirect IPv4 routes: 1.25K number of IPv6 multicast groups: 1K number of directly-connected IPv6 addresses: 4K number of indirect IPv6 unicast routes: 1.25K number of IPv4 policy based routing aces: 0.5K number of IPv4/MAC qos aces: 0.5K number of IPv4/MAC security aces: 1K number of IPv6 policy based routing aces: 0.25K number of IPv6 qos aces: 0.25K number of IPv6 security aces: 0.5K Switch#
This is an example output showing the IPv4 template information:
Switch# show sdm prefer ipv4
"ipv4" 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: 24K
number of directly-connected IPv4 hosts: 16K
number of indirect IPv4 routes: 8K
number of IPv6 multicast groups: 0
number of directly-connected IPv6 addresses: 0
number of indirect IPv6 unicast routes: 0
number of IPv4 policy based routing aces: 0.375k
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 0.875k
number of IPv6 policy based routing aces: 0
number of IPv6 qos aces: 0
number of IPv6 security aces: 60
This is an example output showing the VLAN template information:
Switch# show sdm prefer vlan
"vlan" 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: 32K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 0.5K
number of directly-connected IPv4 hosts: 0.25K
number of indirect IPv4 routes: 0.25K
number of IPv6 multicast groups: 1K
number of directly-connected IPv6 addresses: 0.25K
number of indirect IPv6 unicast routes: 0.25K
number of IPv4 policy based routing aces: 0.5K
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 1K
number of IPv6 policy based routing aces: 0
number of IPv6 qos aces: 0.5K
number of IPv6 security aces: 0.5K
Examples: Configuring SDM Templates
This example shows how to configure the VLAN template:
Switch(config)# sdm prefer vlan Switch(config)# exit Switch# reload Proceed with reload? [confirm]
Additional References for SDM Templates
Related Documents
Related Topic | Document Title |
---|---|
SDM commands |
Catalyst 2960-XR Switch System Management Command Reference |
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: |
Technical Assistance
Description | Link |
---|---|
The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies. 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. |
Feature History and Information for Configuring SDM Templates
Release |
Modification |
---|---|
Cisco IOS 15.0(2)EX1 |
This feature was introduced. |