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10508 and 5800 Jumbo Frames

john.kennedyalmacgroup.
Occasional Contributor

10508 and 5800 Jumbo Frames

Is there a method to globally turn off jumbo frames across all interfaces?  We have recently moved from a Cisco network to a HP and Jumbo seems to be enabled by default, however a number of our servers and other devices are dropping packets on their interfaces.  From what I can see this is done on an individual port bases - can anyone provide a command for a different approach.

2 REPLIES
Fredrik Lönnman
Honored Contributor

Re: 10508 and 5800 Jumbo Frames

Are you sure this is because of MTU on the interfaces? Its only a L2 limit, so as long as your L3 is the same size packets as before it shouldnt make a difference.

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CCIE Service Provider
MASE Network Infrastructure [2011]
H3CSE
CCNP R&S

john.kennedyalmacgroup.
Occasional Contributor

Re: 10508 and 5800 Jumbo Frames

Not really sure at all, but troubleshooting to date has narrowed the problem down, with one option being the jumbo frames on the interfaces.  Are there any incompatibility/best practice issues around Jumbo interfaces being connected to an network which is only set for standard ethernet?

 

Thanks