From: ccie2be (ccie2be@nyc.rr.com)
Date: Wed Feb 16 2005 - 17:18:35 GMT-3
Thanks for getting back to me.
I'm actually not trying to make this more complicated.
But, I don't have a way to test this.
I know the doc's say to change the system mtu, but I don't understand why it
has to be the system mtu.
Why can't the access vlan mtu ( the one used to connect the service provided
to the customer) be changed instead?
This could be very useful in the lab if changing the vlan mtu doesn't
require the switch to be reloaded.
Wouldn't you agree?
TIA, Tim
----- Original Message -----
From: "boby2kusa" <boby2kusa@hotmail.com>
To: "ccie2be" <ccie2be@nyc.rr.com>; "Group Study" <ccielab@groupstudy.com>
Sent: Wednesday, February 16, 2005 1:40 PM
Subject: Re: Changing system mtu vs vlan mtu
> First, you are making this much more complicated than necessary. The
Dot1q
> Tunneling is terminated at the Service Provider meaning all the extra
> headers that the tunneling adds is removed before being sent to you.
> Second, if you are actually doing the tunneling on your switch the
> documantation on dot1q on any platform that supports dot1q tunneling does
> not mention tweaking the vlan mtu, only the system mtu. third, in most
> cases the system mtu does not even have to be tweaked.
>
>
> ----- Original Message -----
> From: "ccie2be" <ccie2be@nyc.rr.com>
> To: "Group Study" <ccielab@groupstudy.com>
> Sent: Wednesday, February 16, 2005 10:16 AM
> Subject: Changing system mtu vs vlan mtu
>
>
> > Hi guys,
> >
> > If the system mtu is left at it's default value of 1500, but a vlan's
mtu
> > is
> > set to 1504 to support 801.1Q tunneling, will that work as well?
> >
> > Or, does the system's mtu have to be changed to 1504?
> >
> > Assume the access vlan on the Service Provider's switch which is used
for
> > tunneling is the vlan whose mtu is changed.
> >
> > Also, I know that for the system mtu change to take effect, the switch
> has
> > to
> > be reloaded. Is the same true when the vlan mtu is changed?
> >
> > TIA, Tim
> >
> > _______________________________________________________________________
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>
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