=====================
Liu Qiang
Ph.D
Optical Networking Services Group,
Laboratories for Information
Technology (LIT) (A member of
A*STAR)
21 Heng Mui Keng Terrace
Singapore 119613
E-mail:
qliu@lit.a-star.edu.sg
DID: +65 6874 6697
Fax: +65 6774
4998
-----Original Message-----
From: owner-ccamp@ops.ietf.org [mailto:owner-ccamp@ops.ietf.org]On Behalf Of yhwkim@etri.re.kr
Sent: 2002Ò´9êÅ17ìí 12:05
To: ccamp@ops.ietf.org
Subject: Timer constraint of the HelloInterval and HelloDeadIntervalHi,
I have a question of the timer constraint of the HelloInterval and HelloDeadInterval parameters in the LMP dratf,
draft-ietf-ccamp-lmp-05.txt.
The draft have proposed as default values of these timer, 5ms and 18ms, respectively.
But, the example statement above the one describing the default values showed 150ms for the HelloInterval.
I think there is a eding error in default values of 5ms and 18ms.
Is that right?
If so, what are the default values of these parameters?
If not so, could you tell me how to implememt the Hello protocol.
I think there is no realistic way to implement the software based Hello protocol.
As an example, in the layer-1(physical layer) based protection of SONET/SDH network,
the detection time for SONET/SDH is specified with 10ms and the restoration time with 60ms.
The Hello protocol may be not a layer-1 protocol, but a layer-7(application layer).Thanks,
Young******************************************
Young Hwa Kim
Senior Member, Network Technology Lab., ETRI
Office No. : 82-42-860-5819
Fax No. : 82-42-860-6342
Mobile No. : 011-433-5819
Email addr. : yhwkim@etri.re.kr
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