RE: ATM-AToM

If the OAM loopback responses are lost then the PVC goes down which will
force the traffic in the other direction. I am under the presumption you
have some L3 traffic running across the connection. Simply routing of the
connection between the sites should do. I am under the hope that you
designed this terminating the AToM with Loopbacks as the source/destination
allowing simply routing protocol path preference to decide the path to take.

Regards,

Tyson Scott - CCIE #13513 R&S, Security, and SP
Managing Partner / Sr. Instructor - IPexpert, Inc.
Mailto: tscott_at_ipexpert.com

From: Mohamed Osama [mailto:tetoo_me_at_hotmail.com]
Sent: Thursday, January 13, 2011 10:20 AM
To: tscott_at_ipexpert.com; Cisco certification
Subject: RE: ATM-AToM

Dear Tyson,

Thanks For Your Valuable Information,

But How can i use It To monitor and Manage The Customer Layer 2 VPN Circuit,

so that if The First AToM layer 2 VPN circuit can Detect its Down,

then Can Utilize The Other Layer 2 VPN Link To be Active In The Layer 2
AToM?

Any Advices About This?what configurations should be applied to the Router
to Solve that?

I appreciate Your Response

Thanks,

Osama

> From: tscott_at_ipexpert.com
> To: tetoo_me_at_hotmail.com; ccielab_at_groupstudy.com
> Subject: RE: ATM-AToM
> Date: Thu, 13 Jan 2011 09:22:34 -0500
>
> It is called OAM management.
>
http://www.cisco.com/en/US/tech/tk39/tk51/technologies_q_and_a_item09186a008
> 0111154.shtml
>
>
> Regards,
>
> Tyson Scott - CCIE #13513 R&S, Security, and SP
> Managing Partner / Sr. Instructor - IPexpert, Inc.
> Mailto: tscott_at_ipexpert.com
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Mohamed Osama
> Sent: Thursday, January 13, 2011 6:49 AM
> To: Cisco certification
> Subject: ATM-AToM
>
> Dear Experts,
>
> Can you please help me with this issue :)
>
> I need to monitor the status of Layer 2 Circuit Carrying ATom-ATM,because
> the Customer is connected with two layer 2 links through ATM/DSLAM to our
PE
> Router.
> I need to find a way so that i can monitor the Status of Layer 2 LINK
> carring AToM to Be able to Utlize the Primary link and Backup Link.
>
> CPE------two Links-----ATM DSLAM---------Two Links-------PE
>
> Kindly notes i can't monitor the Status of Interfaces because the DSLAM
> doesnt provide it and we need to check layer 2 end to end.
>
> Any Mechanism To Provide that Solution?
>
> thanks,
> Osama
>
>
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Received on Thu Jan 13 2011 - 10:26:02 ART