Configuring Rate Mode - Cisco MDS 9000 Series Configuration Manual

Chapter 3 Configuring Fibre Channel Interfaces
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m

Configuring Rate Mode

To configure the rate mode (dedicated or shared) on an interface on a 48-port or 24-port 4-Gbps, or any
8-Gbps Fibre Channel switching module, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# interface fc 1/1
switch(config-if)#
Step 3
switch(config-if)# switchport rate-mode
dedicated
switch(config-if)# switchport rate-mode shared
switch(config-if)# no switchport rate-mode
Caution Changing port speed and rate mode disrupts traffic on the port.
Use show port-resources module command to verify the rate mode configuration for interfaces on a
48-port or 24-port 4-Gbps, or any 8-Gbps Fibre Channel switching module.
This example shows the port rate mode configuration for interfaces on a 4-Gbps module:
switch# show port-resources module 9
Module 9
Available dedicated buffers are 5400
Port-Group 1
Total bandwidth is 12.8 Gbps
Total shared bandwidth is 12.8 Gbps
Allocated dedicated bandwidth is 0.0 Gbps
--------------------------------------------------------------------
Interfaces in the Port-Group
--------------------------------------------------------------------
fc9/1
fc9/2
fc9/3
fc9/4
fc9/5
fc9/6
OL-19445-02, Cisco MDS NX-OS Release 4.2(x)
16 receive B2B credit remaining
64 transmit B2B credit remaining
Configuring Module Interface Shared Resources
Purpose
Enters configuration mode.
Selects the interface and enters interface
configuration submode.
Reserves dedicated bandwidth for the
interface.
Note If you cannot reserve dedicated
bandwidth on an interface, you might
have exceeded the port group
maximum bandwidth. Use the show
port-resources command to
determine what resources are already
allocated.
Reserves shared (default) bandwidth for the
interface.
Reverts to the default state (shared).
B2B Credit Bandwidth
Buffers (Gbps)
16 4.0
16 4.0
16 4.0
16 4.0
16 4.0
16 4.0
Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
Rate Mode
shared
shared
shared
shared
shared
shared
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