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Chapter 32
Configuring Switch Acceleration
Configuring Switch Acceleration
By default, switch acceleration is disabled on the Supervisor Engine II.
Before you enable switch acceleration, you need to disable the two front-panel Gigabit Ethernet uplink
ports on Supervisor Engine II.
To enable switch acceleration, perform this task in privileged mode:
Task
Step 1
Disable front-panel Gigabit
Ethernet ports.
Step 2
Enable switch acceleration.
This example shows how to enable switch acceleration on the switch:
Console> (enable) set port disable 1/1-2
Port(s) 1/1-2 disabled.
Console> (enable)
Console> (enable) set switchacceleration enable 1
Enabling or Disabling switch acceleration may impact performance for 1-2 seconds.
Do you want to continue (y/n) [n]? y
Switch Acceleration on module 1 enabled.
Console> (enable)
This example shows how to disable switch acceleration on the switch:
Console> (enable) set switchacceleration disable 1
Enabling or Disabling switch acceleration may impact performance for 1-2 seconds.
Do you want to continue (y/n) [n]? y
Switch Acceleration on module 1 disabled.
Console> (enable)
Displaying Switch Acceleration Information
To display switch acceleration status, perform this task in privileged mode:
Task
Display current status of switch acceleration.
This example shows how to display the current status of the switch acceleration feature:
Console> show switchacceleration 1
Module 1 has switch acceleration enabled.
Console>
Backplane Channel Module
The Backplane Channel module extends the benefits of switch acceleration by providing multilink load
balancing between the switch engines. A Backplane Channel module also allows you to retain the
Gigabit Ethernet uplinks on the supervisor engine.
78-12647-02
Software Configuration Guide—Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4
Command
set port disable mod_num/port_num
set switchacceleration {enable | disable}mod-num
Command
show switchacceleration mod_num
Configuring Switch Acceleration
32-3
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