topic The processing of Jumbo frame and L2 forwarding in ExtremeSwitching (EXOS/Switch Engine)

The processing of Jumbo frame and L2 forwarding

Yuki_Nakamura — Mon, 26 Feb 2018 19:10:00 GMT

Hi

Please let me know about the processing of Jumbo frame.
I think that the EXOS switch is dropped the jumbo frame, when EXOS switch receive the jumbo frame(larger than 1522 bytes) on condition that disabling is jumbo-frame function.
(This communication is Layer 2.)

Is my understanding of this correct?

What is the condition for Rx-Over to count up?
I understand that Rx-Over is outputting on show ports rx-error when jumbo frame is received.

Is Rx-Over outputting even if jumbo frame function is enabled?

RE: The processing of Jumbo frame and L2 forwarding

Karthik_Mohando — Tue, 19 Jun 2018 12:49:00 GMT

Hi Yuki

I hope you already had an answer for this one but still here is it.

https://extremeportal.force.com/ExtrArticleDetail?an=000086630&q=

Yes the packets will be dropped if Jumbo frames are disabled in the switc

RE: The processing of Jumbo frame and L2 forwarding

Sushruth_Sathya — Tue, 19 Jun 2018 13:01:00 GMT

As Karthik said, when Jumbo frame is received in a Jumbo-disabled port, EXOS will drop the packet. However, when we receive a Jumbo frame and it has to egress out of a Jumbo disabled port, EXOS will fragment the packet and send it out.