--- On Fri, 22/10/10, Chris Wopat wrote:
> > On Thu, 21 Oct 2010, Daniel
> Hooper wrote:
> >
> > The 7206 doesn't accept anything higher than 1500 on
> that interface.
>
> Some 12.2S trains allow you to up the MTU on 7200 to 1530.
> I'm
> currently running SB, I'm unsure if SR* can do it or not.
On Thu, 21 Oct 2010, Daniel Lacey wrote:
Isn't 1490 the "magic" MTU for PPPoE?
Perhaps. But this is supposed to be a layer 2 connection via ethernet
from us to the customer. PPPoE isn't in use. Just some switches and
q-in-q in between.
Antonio Querubin
808-545-5282 x3003
e-mail/xmpp: t
Isn't 1490 the "magic" MTU for PPPoE?
|---
| Dan Lacey daniel_p_la...@yahoo.com
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On Thu, 21 Oct 2010, David Freedman wrote:
Problem is the DEC chip found on PA-FE-TX , it has a hard limit of 1530
It's actually the built-in FastEthernet port instead of a port adapter:
#show controllers fastEthernet 0/0
Interface FastEthernet0/0
Hardware is DEC21140A
PDU (i.e on the wire,
> On Thu, 21 Oct 2010, Daniel Hooper wrote:
>
> The 7206 doesn't accept anything higher than 1500 on that interface.
Some 12.2S trains allow you to up the MTU on 7200 to 1530. I'm
currently running SB, I'm unsure if SR* can do it or not.
http://puck.nether.net/pipermail/cisco-nsp/2007-March/03903
Problem is the DEC chip found on PA-FE-TX , it has a hard limit of 1530
PDU (i.e on the wire, with headers), IOS prevented you changing the mtu
on the interface (which is usually the SDU, i.e without the ethernet
frame overhead) because it was so close to the edge, but with advent of
"tag-switching
Le 20/10/2010 19:42, Antonio Querubin a écrit :
A new carrier will be handing us customer connections as q-in-q vlans.
However, during our initial network validation we noticed what seem like
possible MTU issues. Pings work fine but HTTP connections to various
sites is flakey - more so for IPv4
On Thu, 21 Oct 2010, Christophe Lucas wrote:
You could be able to set mtu higher than 1500, so that you can handle q-in-q
frames.
1500 is the highest MTU the router will accept for configuration on its
FastEthernet interfaces. It doesn't have any GigabitEthernet interfaces.
I am interest
Le 21/10/2010 11:21, Antonio Querubin a écrit :
On Thu, 21 Oct 2010, Daniel Hooper wrote:
I was under the impression that interfaces handling Q-in-Q needed
atleast an MTU of 1504 bytes.
The 7206 doesn't accept anything higher than 1500 on that interface.
I did some testing with the carrier t
On Thu, 21 Oct 2010, Daniel Hooper wrote:
I was under the impression that interfaces handling Q-in-Q needed
atleast an MTU of 1504 bytes.
The 7206 doesn't accept anything higher than 1500 on that interface.
I did some testing with the carrier today and we found that 1490 was the
highest MTU
A new carrier will be handing us customer connections as q-in-q vlans.
However, during our initial network validation we noticed what seem like
possible MTU issues. Pings work fine but HTTP connections to various
sites is flakey - more so for IPv4 than IPv6 oddly enough.
The customer circuit
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