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The following are restrictions when using SDM templates:
The switch supports homogeneous stacking, but does not support mixed stacking.
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:
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.
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 |
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.
1. configure terminal
2. sdm prefer { default | ipv4 | vlan }
3. end
4. reload
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
This example shows how to configure the VLAN template:
Switch(config)# sdm prefer vlan Switch(config)# exit Switch# reload Proceed with reload? [confirm]
Related Topic | Document Title |
---|---|
SDM commands |
Catalyst 2960-XR Switch System Management Command Reference |
Standard/RFC | Title |
---|---|
None | — |
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: |
Description | Link |
---|---|
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Release |
Modification |
---|---|
Cisco IOS 15.0(2)EX1 |
This feature was introduced. |