[c-nsp] PPP multilink synchronization

[Kanagaraj Krishna]

Hi Nasir,
              FYI, both are serial links. But why do the remote site sees
link A as active, when actually its down (as seen from our side)? I thought
in PPP multilink bundle setups, its suppose to automatically divert all
traffic to the active link in the case of outage on the other link. Are
there any solutions for this issue? Thanks.

Regards,
Kana

----- Original Message -----
From: "Shaikh, Nasir" <Nasir.Shaikh at atosorigin.com>
To: "Kanagaraj Krishna" <kanagaraj at aims.com.my>;
<gautam_attravanam at sifycorp.com>
Cc: <cisco-nsp at puck.nether.net>
Sent: Tuesday, May 09, 2006 11:07 PM
Subject: RE: [c-nsp] PPP multilink synchronization



That is because the remote side still sees both links A & B as active and
keeps sending packets over both the members of the multilink bundle. This
results in some packets going through while some do not.

What kind of links are you using? Serial, F/R, ATM? Do you have FREEK (for
F/R) or OAM/ILMI (for ATM) configured on the links?

regards

Nasir

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Kanagaraj Krishna
Sent: dinsdag 9 mei 2006 16:39
To: gautam_attravanam at sifycorp.com
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] PPP multilink synchronization


Regarding the keepalives, I'll give it a try. On the other question, when
link
A goes down, link B stays up (physical & line protocol). But ping to the
other
side would be intermittent. Shutting the interface for link A on the remote
side results in smooth ping results. Any clues?

Any idea which version of IOS is affected by Bug id CSCsd01816?

Thanks

> Hi
>
> It is possible you may be running into Bug id CSCsd01816. Alternatively,
> force a keepalive on the link and see if it solves the issue. When this
> happens, does the link go down the other side. What does sh ppp multilink
> give you on the remote side ?
>
> Regards
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Kanagaraj Krishna
> Sent: Tuesday, May 09, 2006 2:17 PM
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] PPP multilink synchronization
>
>
> Hi,
>      I have an issue with my PPP multilink setup which consist of 2 links
(A
> & B). On my side a 7206VXR router is being used, while a 2600 series on
the
> remote side. In a situation where link A goes down, the other link B
should
> be functioning without issues. But in this case, whenever link A goes
down,
> the B link becomes intermittent. Shutting the local interface for link A
did
> not have any effect.We solved the issue by shutting the remote interface
for
> Link A. Does anyone have any idea on what could be wrong? Could it be
> related to IOS incompatibility or misconfiguration issues?
>
> Thanks,
> Kanagaraj Krishna
>
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--
Kanagaraj Krishna
Network Engineer
Network Engineering
Applied Information Management Services Sdn. Bhd.
(AIMS Sdn. Bhd.)
Ground Floor, Menara Aik Hua,
Changkat Raja Chulan,
50200 Kuala Lumpur,Malaysia.

Tel     : +603-20314988 Ext : 395
Mobile  :  012-3266151
Fax     : +603-20318948
Email   : kanagaraj at aims.com.my
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