RE: IEEE 802.3ah - EOAM - clause 57 - need clarification on the statements in section 57.2.11.4 & 57.2.11.6

Hello Dan,
 
Thank you very much for response. I will forward my questions to IEEE 802.3
WG.
 
I have come across the draft mib "draft-ietf-hubmib-efm-mib-03.txt" for 
Ethernet OAM that expired on September, 2005. 
 
Is that MIB standardised (or) Are there any other new draft versions coming
in?
 
Thank you in advance.
 
Best Regards,
Geetha.

-----Original Message-----
From: Romascanu, Dan (Dan) [mailto:[email protected]]
Sent: Friday, 17 February 2006 12:55 PM
To: [email protected]; [email protected]
Cc: [email protected]; [email protected];
[email protected]; [email protected]
Subject: RE: [Hubmib] IEEE 802.3ah - EOAM - clause 57 - need clarification
on the statements in section 57.2.11.4 & 57.2.11.6


Geetha,
 
I believe that you are asking questions that are related to the IEEE 802.3
standards, and not to the Ethernet MIB work that is being done in the IETF.
I suggest that you address your clarification questions to the IEEE 802.3
Working Group. 
 
Best Regards,
 
Dan Romascanu
hubmib WG Chair
 
 
 
 
 


  _____  

From: [email protected] [mailto:[email protected]] On Behalf Of
Geetha K
Sent: Thursday, February 16, 2006 4:35 PM
To: [email protected]
Cc: [email protected]; [email protected];
[email protected]; [email protected]
Subject: [Hubmib] IEEE 802.3ah - EOAM - clause 57 - need clarification on
the statements in section 57.2.11.4 & 57.2.11.6


 
Section 57.2.11.6:
=============
To ensure correct operation, the OAM client needs to, within one second of 
receiving a Loopback Control OAMPDU with the Enable OAM Remote Loopback 
command:
a) Set its local_par_action parameter to LB and the local_mux_action to
DISCARD 
    via OAM_CTL.request service primitive.
b) Send an Information OAMPDU.  
 
 

Section 57.2.11.4:
=============
Since Information OAMPDUs are continually sent to keep the OAM Discovery
process
from re-starting, the occasional loss of an Information OAMPDU should not
adversely 
impact the operation of OAM remote loopback mode. 
 
 
The above 2 statements are conflicting: 
- first statement insists on sending OAMPDU within one second to ensure
correct operation 
- second statement says that loss os Information OAMPDU should not adversely
impact 
   the operation of OAM ermote loopback mode.
 
 
In Remote loopback mode, what will happen if the remote peer is not
responding with 
an information OAMPDU within a second after sending a remote loopback
command? 
This is critical as the Multiplexer at the local DTE will be put in Discard
state until an 
information OAMPDU is received and all the frames from higher layers will be
dropped.
 
Clarification on this will be highly appreciated.
 
 
Thank you.
 
Regards,
Geetha.
 


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