Information About Configuring SDM Templates
SDM Templates
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.
These templates are supported on your device:
-
Advanced—The advanced template is available on all supported images for this release. It maximizes system resources for features like netflow, multicast groups, security ACEs, QoS ACEs, and so on.
-
VLAN—The VLAN template is available only on the LAN Base license. The VLAN template disables routing and supports the maximum number of unicast MAC addresses. It would typically be selected for a Layer 2 device.
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 will become active after a reload.
The default is the advanced template.
Resource |
Advanced |
VLAN |
---|---|---|
Number of VLANs |
4094 |
4094 |
Unicast MAC addresses |
32 K |
32 K |
Overflow unicast MAC addresses |
512 |
512 |
IGMP groups and multicast routes |
4 K |
4 K |
Overflow IGMP groups and multicast routes |
512 |
512 |
|
16K |
16 K |
|
7 K |
7 K |
Policy-based routing ACEs |
1024 |
0 |
QoS classification ACEs |
3 K |
3 K |
Security ACEs |
3 K |
3 K |
Netflow ACEs |
1024 |
1024 |
Input Microflow policer ACEs: |
256 K |
0 |
Output Microflow policer ACEs: |
256 K |
0 |
FSPAN ACEs |
256 |
256 |
Control Plane Entries: |
512 |
512 |
Input Netflow flows: |
8 K |
8 K |
Output Netflow flows: |
16 K |
16 K |
Note |
When the switch is used as a Wireless Mobility Agent, the only template allowed is the advanced template. |
Note |
SDM templates do not create VLANs. You must create the VLANs before adding commands to the SDM templates. |
The tables represent approximate hardware boundaries set when a template is selected. If a section of a hardware resource is full, all processing overflow is sent to the CPU, seriously impacting switch performance.
SDM Templates and Switch Stacks
In a switch stack, all stack members must use the same SDM template that is stored on the active switch. When a new switch is added to a stack, the SDM configuration that is stored on the active switch overrides the template configured on an individual switch.
You can use the show switch privileged EXEC command to see if any stack members are in SDM mismatch mode.