It was recently suggested to clean up our switch configs (3560G, 3650's etc.) that we should remove the "system mtu routing 1500" command since this is the default. I've always been taught to hard code this into our access layer switches to match our core MTU settings. Will this cause issues within our network if this is removed from all access layer switches?
****It is my understanding without this command that switches could pick up Jumbo frames coming from other cores switches at the data layer****
Hi shouldnt cause an issue on access switches pure l2 but may cause problem on a routed switch with routed ports as thats where it actually comes into action , personally i wouldnt remove default commands unless theres a specific reason other than clean up , clean up to me would be removing routes /configuration etc thats not in use and tightening acls rules etc that may be irrelavent after long periods of changes, changing it on 1 switch should be changed on all though when it comes to MTU
Hi shouldnt cause an issue on access switches pure l2 but may cause problem on a routed switch with routed ports as thats where it actually comes into action , personally i wouldnt remove default commands unless theres a specific reason other than clean up , clean up to me would be removing routes /configuration etc thats not in use and tightening acls rules etc that may be irrelavent after long periods of changes, changing it on 1 switch should be changed on all though when it comes to MTU
as far as I remember, jumbo frames will only be accepted if you have 'system mtu jumbo' configured (or, in theory, if you actually would WANT to route jumbo frames, 'system mtu routing 9198'.). Otherwise, they will not go through...
Learn, share, save
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
