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show int G0/X --pause input

Hi netpro :

I have a WS-C3560G-24TS, one GE port connects to SP device,their ethernet port(100/full).everything looks good, but I watch lots of pause input ,almost several thousands,what's the cause ?

Br

herman

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Silver

Re: show int G0/X --pause input

hello Herman,

SP connected device is sending IEEE pause frames to your switch port in a hope to slow down your device sending rate.

the root cause is that they have flow control outbound enabled on their device.

if you have input flowcontrol disabled those frames are simply ignored if it is enabled each frame asks a 512 byte equivalent time of silence to your device

Hope to help

Giuseppe

3 REPLIES
Hall of Fame Super Silver

Re: show int G0/X --pause input

hello Herman,

SP connected device is sending IEEE pause frames to your switch port in a hope to slow down your device sending rate.

the root cause is that they have flow control outbound enabled on their device.

if you have input flowcontrol disabled those frames are simply ignored if it is enabled each frame asks a 512 byte equivalent time of silence to your device

Hope to help

Giuseppe

New Member

Re: show int G0/X --pause input

Hi Giuseppe

How do you disable the Flow control in a 1921 Gigabit interface?

Hall of Fame Super Gold

show int G0/X --pause input

no ip flow

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