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RE: [EFM] 802.3ah OAM question

Hi Roy,

What is the advantage of knowing that the problem is forward or reverse 
direction. As far as I know in Ethernet both direction pass through the same
path and same ports.


-----Original Message-----
From: Roy Bynum []
Sent: Wednesday, February 18, 2004 5:59 PM
To: Shahram Davari;
Subject: Re: [EFM] 802.3ah OAM question


Think about it.  If the remote node, in loop back mode can not inject 
packets, how will the local node know if any problems that might appear are 
in the down loop or in the up loop?  The purpose of the loop back is for 
testing.  The one of the purposes for OAM packets is to report 
discrepancies.  From a troubleshooting view, one without the other is only 
half of the picture.

Roy Bynum

At 10:49 AM 2/18/2004, Shahram Davari wrote:

>Hi all,
>Should the node, which is in loopback mode, be able to generate and inject 
>OAM packets?
>Shahram Davari