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Cisco Catalyst Blade Switch 3120 for HP Command Reference
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Chapter 2 Cisco Catalyst Blade Switch 3120 for HP Cisco IOS Commands
sdm prefer
sdm prefer
Use the
sdm prefer
global configuration command on the switch stack or on a standalone switch to
configure the template used in Switch Database Management (SDM) resource allocation. You can use a
template to allocate system resources to best support the features being used in your application. Use a
template to provide maximum system usage for unicast routing or for VLAN configuration or to select
the dual IPv4 and IPv6 template to support IPv6 forwarding. Use the
no
form of this command to return
to the default template.
sdm prefer
{
access
|
default
|
dual-ipv4-and-ipv6
{
default
|
routing
|
vlan
} |
routing
|
vlan
}
no sdm prefer
Syntax Description
Defaults
The default template provides a balance to all features.
Command Modes
Global configuration
Command History
Usage Guidelines
You must reload the switch for the configuration to take effect. 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 IPv6 packets are routed in hardware across the stack, as long as the packet does not have
exceptions (IPv6Options) and the switches have not run out of hardware resources.
access
Provide maximum system usage for access control lists (ACLs). Use this
template if you have a large number of ACLs.
default
Give balance to all functions.
dual-ipv4-and-ipv6
{
default
|
routing
|
vlan
}
Select a template that supports both IPv4 and IPv6 routing.
•
default
—Provide balance to IPv4 and IPv6 Layer 2 and Layer 3
functionality.
•
routing
—Provide maximum system usage for IPv4 and IPv6 routing,
including IPv4 policy-based routing.
•
vlan
—Provide maximum system usage for IPv4 and IPv6 VLANs.
routing
Provide maximum system usage for unicast routing. You would typically use
this template for a router in the middle of a network.
vlan
Provide maximum system usage for VLANs. This template maximizes system
resources for use as a Layer 2 switch with no routing.
Release
Modification
12.2(40)EX1
This command was introduced.
