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Looking for info on "Pause Frame" definition

chuckk281
Trusted Contributor

Looking for info on "Pause Frame" definition

Karene was looking for info on the difference between “priority pause frames” vs normal “pause frames”.

 

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Input from Radi:

 

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The Priority pause frames are discussed in a new standard. If VC supports this standard 802.1Qbb.

Standard Pause frame will just block traffic from a MAC, PFC on the other hand distinguishes between class of traffic and has a timer – how long should the sender wait for the receiver to avoid congestion.

 

This is explained very well in this article:

 

http://blog.ipspace.net/2010/09/introduction-to-8021qbb-priority-flow.html

 

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Also from Kevin:

 

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A priorty pause frame is designed to insure QoS Quality of service.  It exists to assist in time sensitive delivery,to insure a service can get needed bandwidth.

 

http://en.wikipedia.org/wiki/Ethernet_flow_control

 

http://msdn.microsoft.com/en-us/library/windows/hardware/hh440161(v=vs.85).aspx

 

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