[29242] in North American Network Operators' Group
RE: PMTU-D: remember, your load balancer is broken
daemon@ATHENA.MIT.EDU (John Fraizer)
Thu Jun 15 02:00:54 2000
Date: Thu, 15 Jun 2000 01:28:11 -0400 (EDT)
From: John Fraizer <nanog@EnterZone.Net>
To: Deepak Jain <deepak@ai.net>
Cc: nanog@merit.edu
In-Reply-To: <Pine.BSF.4.10.10006141559480.60609-100000@ticket.ai.net>
Message-ID: <Pine.LNX.3.96.1000615012710.19119B-100000@Overkill.EnterZone.Net>
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Errors-To: owner-nanog-outgoing@merit.edu
All of our systems come up defaulting to 1500 byte MTU as well. We had
to manually set them to what we wanted if it wasn't 1500.
---
John Fraizer
EnterZone, Inc
On Wed, 14 Jun 2000, Deepak Jain wrote:
>
>
> Then again, at least some Cisco gear doesn't think that.
>
> perdition>sh in g0/1
> GigabitEthernet0/1 is up, line protocol is up
> Hardware is Gigabit Ethernet, address is 00d0.7966.eeae (bia 00d0.7966.eeae)
> MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, rely 255/255, load 24/255
>
> Deepak Jain
> AiNET
>
> On Wed, 14 Jun 2000 jhsu@mur.com wrote:
>
> >
> >
> > : I thought the frame-size limits for Gigabit Ethernet were 64-1518/1522
> > : bytes? And isn't that the limit on most host IP stacks for Ethernet media?
> > : Or am I off in left field, here?
> >
> > for backbone applications, at least, many hardware vendors support
> > large frames [>1500] on GigE.
> >
> > _k
> >
> >
> >
>
>
