Cisco Systems DSC9148D8G48PK9 manual Disabling Restrictions on Oversubscription Ratios

Chapter 3 Configuring Fibre Channel Interfaces

Configuring Fibre Channel Interfaces

Disabling Restrictions on Oversubscription Ratios

Prerequisites

•Before disabling restrictions on oversubscription ratios, ensure that you have explicitly shut down shared ports.

Detailed Steps

To disable restrictions on oversubscription ratios on a 48-port or 24-port 4-Gbps, or any 8-Gbps Fibre Channel switching module, follow these steps:

	Command	Purpose
Step 1
	switch# config t	Enters configuration mode.
	switch(config)#
Step 2
	switch(config)# no rate-mode	Disables restrictions on oversubscription ratios for a
	oversubscription-limit module 1	module.
		Note You must enter this command separately for
		each module for which you want to remove
		the restrictions.
Step 3
	switch(config)# exit	Exits configuration mode.
Step 4
	switch# copy running-config startup-config	Saves the new oversubscription ratio configuration
		to the startup configuration, and then the new
		configuration is enforced upon subsequent reboots
		of the module.

Use the show running-configcommand to view oversubscription ratios for a module. If oversubscription ratios are enabled, then no restriction appears in the output.

Example 3-1 Module with Restrictions on Oversubscription Ratios Disabled

switch# show running-config

version 3.1(1)

...

no rate-mode oversubscription-limit module 2 interface fc2/1

switchport speed 2000 interface fc2/1

...

Examples

To disable restrictions on oversubscription ratios for ports on a 48-port Generation 2 switch that is configured with both shared and dedicated ports, follow these steps:

Step 1 To disable restrictions on oversubscription ratios, you must shut down any shared ports. Use the show port-resourcescommand to view the configuration on a module and to identify shared ports.

switch# show port-resources module 2

Module 2

Available dedicated buffers are 4656

	Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
OL-29284-01, Release 6.x		3-37