Verifying Bandwidth Utilization In A Port Group Using The Cli - Cisco 9134 - MDS Multilayer Fabric Switch Troubleshooting Manual

Generation 1 and Generation 2 Issues
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

Verifying Bandwidth Utilization in a Port Group Using the CLI

To verify bandwidth utilization in a port group using the CLI, follow these steps:
Step 1 Use the show port-resources module command to display the Generation 2 module shared resources
configuration.
switch# show port-resources module 2
Module 2
Available dedicated buffers are 5164
Port-Group 1
Total bandwidth is 12.8 Gbps
Total shared bandwidth is 4.8 Gbps
Allocated dedicated bandwidth is 8.0 Gbps
--------------------------------------------------------------------
Interfaces in the Port-Group
--------------------------------------------------------------------
fc2/1
fc2/2
fc2/3
fc2/4
fc2/5
fc2/6
...
In this example, there is not enough available shared bandwidth in Port-Group 1 to switch any more ports
to 4 Gbps dedicated mode.
Do one of the following to free bandwidth for the port that you want to place in dedicated mode.
Step 2
a.
b.
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
5-12
Use the out-of-service command in interface mode to put one or more ports in out- of-service mode
to free more resources.
Use the swtichport speed command on one or more ports to change the port speed to a lower port
speed. See the "Dynamic Bandwidth Management" section on page 5-3
requirements for port rate modes and port speeds.
Chapter 5 Troubleshooting Mixed Generation Hardware
B2B Credit Bandwidth
Buffers (Gbps)
16 4.0
16 4.0
16 4.0
16 4.0
16 4.0
16 4.0
Rate Mode
shared
shared
shared
shared
dedicated
dedicated
for the minimum bandwidth
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