Cisco Catalyst 2960 Series, Configuration Manual

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• The switch supports homogeneous stacking and mixed stacking. Mixed stacking is supported only with
the Catalyst 2960-S switches. A homogenous stack can have up to eight stack members, while a mixed
stack can have up to four stack members. All switches in a switch stack must be running the LAN Base
image.
• The default template is the only template supported on switches running the LAN Base image.
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.
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.
•
LAN Base default
—
The LAN Base default template is to be used with switches in a homogeneous stack.
• LAN Base routing — The LAN Base routing template supports IPv4 unicast routes for static routing SVI
configuration.
The LAN Base routing template prevents other features from using the memory allocated to unicast routing.
Routing must be enabled on your switch before you can use the routing template.
For more information about homogeneous and mixed stacks, see the Catalyst 2960-X 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.
Default and LAN Base Templates
•
Default and LAN Base routing templates
—
Optimizes the resources in the switch to support feature level
for no routed interfaces and 255 VLANs.
• LAN Base default — Optimizes the resources in the switch to support feature level for no routed interfaces
and 1024 VLANs.
Table 145: Approximate Number of Feature Resources Allowed by Templates
LAN Lite LAN Base Routing LAN Base Default Default Resource
16 k 4 K 16 k 8 K Unicast MAC
addresses
64/4096 255/4096 255/1024 255/4096 Active
VLANs/VLAN
IDs
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
1590
Information About Configuring SDM Templates