Configuring Congestion Isolation - Cisco MDS 9000 Series Configuration Manual

Congestion Detection, Avoidance, and Isolation
switch(config)# no system fc flow-control
Step 3
Select a Fibre Channel interface and enter interface configuration submode:
switch(config-if)# interface fc slot/port
Step 4 Gracefully shut down the interface and administratively disable traffic flow:
switch(config-if)# shutdown
Step 5
Enable traffic flow on the interface:
switch(config-if)# no shutdown
Step 6
Return to privileged executive mode:
switch(config-if)# end
Step 7 Verify if the link is in R_RDY flow-control mode:
switch# show flow-control r_rdy

Configuring Congestion Isolation

Enabling Congestion Isolation
To enable Congestion Isolation, perform these steps:
Before you begin
Configure Extended Receiver Ready. For more information, see
177.
Step 1 Enter configuration mode:
switch# configure terminal
Step 2
Enable Congestion Isolation:
switch(config)# feature congestion-isolation
(Optional) Manually include or exclude a device to be detected as a slow-drain device:
switch(config)# congestion-isolation {include | exclude} pwwn pwwn vsan vsan-id
Disabling Congestion Isolation
To disable Congestion Isolation, perform these steps:
Before you begin
Remove the congestion-isolation portguard action for links in the port-monitor policy. For more information,
see Configuring the Port-Monitor Portguard Action for Congestion Isolation, on page
Enabling Extended Receiver Ready, on page
Cisco MDS 9000 Series Interfaces Configuration Guide, Release 8.x
Configuring Congestion Isolation
180.
179