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Fibre Channel (SAN)

Posts: 32
Registered: ‎06-09-2012

question on slow drain

I have one of the switch ports generating high volume of "Class 3 receive frames discarded due to timeout" errors..

er_rx_c3_timeout  2707 

Does it mean, the device is a slow drain device ???

External Moderator
Posts: 5,512
Registered: ‎02-23-2004

Re: question on slow drain


such timeout error are usually caused in 8G Plattform's by exceeded distance.

If the Port is a ISL Port, try follow:

Set the E_Port in question in LE Mode, and enable flow control on both site.

You should first set the port disable with command "portcfgpersistentdisable"

keep in mind this command is traffic disruptive.

Posts: 32
Registered: ‎06-09-2012

Re: question on slow drain

Thanks a lot..:)

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