Cisco Catalyst 3750-X Command Reference

2-543
Catalyst 3750-X and 3560-X Switch Command Reference
OL-29704-01
Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
sdm prefer
sdm prefer
To configure the template used in Switch Database Management (SDM) resource allocation, use the sdm
prefer command in global configuration mode. 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. To return to the default template, use the no form of this command.
sdm prefer {access | default | dual-ipv4-and-ipv6 {default | routing | vlan} |
indirect-ipv4-and-ipv6- routing | routing | vlan}
Note Although visible in the command-line help, the ipe keyword is not supported. The routing keywords are
not supported on switched running the LAN base feature set.
Syntax Description
Defaults The default template provides a balance to all features.
Command Modes Global configuration
Command History
access Provides maximum system usage for access control lists (ACLs). Use this
template if you have a large number of ACLs.
default Gives 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 functionality.
• routing—Provide maximum system usage for IPv4 and IPv6 routing,
including IPv4 policy-based routing.
Note The routing keyword is not supported on switches running the LAN
base feature set.
• vlan—Provide maximum system usage for IPv4 and IPv6 VLANs.
indirect-ipv4-and-
ipv6-routing
Allows more entries for IPv4 and IPv6 summary or indirect routes, and fewer
entries for IPv4 and IPv6 policy-based routing, QoS, and ACLs.
routing Provides maximum system usage for unicast routing. You would typically use
this template for a router or aggregator in the middle of a network.
This keyword is not supported on switches running the LAN base feature set.
vlan Provides maximum system usage for VLANs. This template maximizes system
resources for use as a Layer 2 switch with no routing.
Release Modification
12.2(53)SE2 This command was introduced.
12.2(58)SE The indirect-ipv4-and-ipv6-routing template was added.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing