[AusNOG] Telstra LNS issue

[Ryan Crouch]

Hi Michael,

We have had this before, however it was isolated to particular DSLAM ESA's
& BRAS combinations. We were able to establish the combinations and
patterns using PPP auth logs from Cisco routers at customer sites and
which LAC was answering the CHAP/PAP responses.

By escalating via our operations manager, they acknowledged issues
eventually with faulty line cards in exchanges.

They were initially pointing us at 'new E-BRAS' and routing information
but we were able to show that our BGP learned BRAS addresses were fine and
reachable

It's also important that you check the VPDN l2x debugs because that is how
we were able to prove the session/auth was never forwarded to us at all,
ever.

I'm not sure if this is what you're experiencing, and if there's a large
geographical spread it's unlikely to be the same problem but maybe it will
give you an idea of some of the places to investigate.

-Ryan

-----Original Message-----
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Michael
Marklew
Sent: Tuesday, 3 June 2014 3:52 PM
To: ausnog at lists.ausnog.net
Subject: [AusNOG] Telstra LNS issue

Hi,

Can someone please point me in the right direction with a Telstra DSL
issue I am having? I have a stack of Telstra ADSL tails not authenticating
as of today and faults are telling me the following and will not escalate
it any further or offer anyway I can move forward.

**
As part of Telstra's congestion relief activity additional E-BRAS's have
been deployed in the DSL Network.
Please ensure that you have updated your LNS with the LAC IP addresses for
the additional E-BRAS's.
**

My Telstra LAC IP's update via BGP so I can not figure out what they are
on about. It may be just me not having a clue as my Telstra interconnect
has operated without issue for many years.

Kind Regards,
Michael.



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