[c-nsp] mtu issues on 3750

[Tassos Chatzithomaoglou]

I guess if you set only L2 MTU to max, there won't be such a problem....

--
Tassos


Gert Doering wrote on 19/4/2006 7:58 μμ:
> Hi,
> 
> On Wed, Apr 19, 2006 at 09:43:45AM -0700, Michael K. Smith wrote:
>> This is a really general question, but why not set any and all MTU's to
>> their maximum values?  Are there system resources that get eaten up in doing
>> so?  It seems to me that it's "easier" to set the MTU at its highest value,
>> but I'm curious to know why it's not "better".
> 
> If you happen to have other devices on the same Layer 3 network segment
> that use "standard size" MTUs (for example, end hosts) you MUST NOT have 
> a larger MTU on the SVI that sends packets their way.
> 
> (Otherwise the switch will just send big packets out to the LAN, and
> the host will not be able to receive them -> black hole)
> 
> gert