Re: [CCAMP] poll on making draft-zhang-mpls-tp-rsvpte-ext-associated-lsp-04 a WG document

Hi Attila

Be appreciated for your comments.

See in line

Best regards

Fei

Attila Takacs <Attila.Takacs@ericsson.com> 
发件人:  ccamp-bounces@ietf.org
2011-04-13 04:27

收件人
"ccamp@ietf.org" <ccamp@ietf.org>
抄送

主题
Re: [CCAMP] poll on     making 
draft-zhang-mpls-tp-rsvpte-ext-associated-lsp-04 a WG   document

Hi authors,

You talk about two provisioning models: "single" and "double" sided modes. 

Double sided is clear, it uses independent signaling for the two LSPs. 

Single sided, if I understood correctly, somehow binds the two LSP 
signaling phases together. I have some doubts that this model is needed. 
It seems to complicate operation and it also begs the question why not use 
bidirectional LSPs instead. 

[Fei] Just my two cents. Compared to co-routed bidirectional LSPs, the 
operation is a little complicated; but contrast to double sided 
provisioning, the operation is more or less   easier (the binding does not 
depend on the refreshed signaling).

As to the question that why not use co-routed bidrectional LSPs. Two 
consideration are listed below:

1) The bandwidth can not be satisfied in the reverse direction if co-route 
is required
2) The LSPs from west to east (LSP1) and east to west (LSP2) are already 
existing, they can be bound together also. 

I think two independently signaled LSPs with the addition of the proposed 
Association object would do the job addressing the associated 
bidirectional LSP requirements, so that transit nodes are also aware of 
the binding.

Best regards,
Attila 

-----Original Message-----
From: ccamp-bounces@ietf.org [mailto:ccamp-bounces@ietf.org] On Behalf Of 
Lou Berger
Sent: Friday, April 01, 2011 11:24 AM
To: ccamp@ietf.org
Subject: [CCAMP] poll on making 
draft-zhang-mpls-tp-rsvpte-ext-associated-lsp-04 a WG document

All,

This is to start a two week poll on making
draft-zhang-mpls-tp-rsvpte-ext-associated-lsp-04 a ccamp working group 
document. Please send mail to the list indicating "yes/support"
or "no/do not support".  If indicating no, please state your technical 
reservations with the document.

The poll ends Friday April 15.

Much thanks,
Lou (and Deborah)

_______________________________________________
CCAMP mailing list
CCAMP@ietf.org
https://www.ietf.org/mailman/listinfo/ccamp
_______________________________________________
CCAMP mailing list
CCAMP@ietf.org
https://www.ietf.org/mailman/listinfo/ccamp