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Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
Chapter 8 Configuring SDM Templates
Configuring the Switch SDM Template
2d23h:%SDM-6-MISMATCH_ADVISE:compatible desktop SDM template:
2d23h:%SDM-6-MISMATCH_ADVISE:
2d23h:%SDM-6-MISMATCH_ADVISE: "sdm prefer vlan desktop"
2d23h:%SDM-6-MISMATCH_ADVISE: "reload"
Configuring the Switch SDM Template
These sections contain this configuration information:
• Default SDM Template, page 8-4
• SDM Template Configuration Guidelines, page 8-4
• Setting the SDM Template, page 8-5
Default SDM Template
The default template is the default Switch Database Management (SDM) desktop template.
SDM Template Configuration Guidelines
Follow these guidelines when selecting and configuring SDM templates:
• You must reload the switch for the configuration to take effect.
• Use the sdm prefer vlan global configuration command on switches intended for Layer 2 switching
with no routing.
When you use the VLAN template, no system resources are reserved for routing entries, and any
routing is done through software. This overloads the CPU and severely degrades routing
performance.
• Do not use the routing template if you do not have routing enabled on your switch. To prevent other
features from using the memory allocated to unicast routing in the routing template, use the sdm
prefer routing global configuration command.
• If you try to configure IPv6 without first selecting a dual IPv4 and IPv6 template, a warning message
appears.
• Using the dual stack template results in less hardware capacity allowed for each resource, so do not
use it if you plan to forward only IPv4 traffic.