[AusNOG] Telstra LNS issue

[Michael Marklew]

One of the Telstra guys responded to my post almost immediately and is looking into it. (so happy!)

I am sure you know how good it is to have a Telecommunications community to discuss this stuff with. Loving AusNOG today.

But yes, this sounds like it is on the right track as the numbers are smallish, all disconnected at the same time and in the same region (Newcastle) but not the same exchange. Another provider messaged me with the same thing and theirs also disconnected at the same time as ours.

If you are able and have DSL tails in the Newcastle region, check for disconnects at 2:37am today. Because the numbers are relatively small they might all be stuck at level 1 support.

It is worth mentioning that we had an electrical storm up this way between 2am and 3am. My guys assumed they were blown modems (or exchange issues) and then standard no-auth faults which is why it took so long for it to get this far.

Kind Regards,
Michael.


On 3 Jun 2014, at 4:35 pm, Ryan Crouch <ryan at apexn.com.au> wrote:

> 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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