[OPS-NM] Comments Question about draft-xu-cops-push-00.txt

At that time the Re reference point, merged into Rw reference point later, controlled the IP edge, actually an IP-IP gateway. In the current network, most existing IP-IP gateways are routers, which support COPS already. In reality, using COPS is the quickest way to do that as described in approach 2 in this draft. 

COPS-PR by nature does policy control, Rw interface  mainly does policy control dynamically, not just push configuration information. Besides,  in 2005,NETCONF was a pretty new protocol, and few existing routers supported NETCONF.

As RACF supports both fix and mobile, push and pull modes, in the real networking, PD-FE may possibly support both modes, and in pull modes, COPS is very effective, so, in push mode, if approach 2 COPS could be adopted, it will simplify the implementation.

----- Original Message ----- 
From: "Juergen Schoenwaelder" <j.schoenwaelder@iu-bremen.de>
To: "Tom-PT Taylor" <taylor@nortel.com>
Cc: "Romascanu, Dan (Dan)" <dromasca@avaya.com>; "Heyuan Xu" <xuheyuan@mail.ritt.com.cn>; <ops-nm@ietf.org>; <dongsun@alcatel-lucent.com>; "Hexian Huang" <huanghexian@mail.ritt.com.cn>; <nmrg@ibr.cs.tu-bs.de>; <ops-area@ietf.org>; "Tina Tsou" <tena@huawei.com>
Sent: Thursday, March 15, 2007 3:24 PM
Subject: Re: [nmrg] Re: [OPS-AREA] Question about draft-xu-cops-push-00.txt

> On Tue, Mar 13, 2007 at 04:02:57PM -0400, Tom-PT Taylor wrote:
> 
>> My co-authors can better explain the choice of COPS.
> 
> So can one of your co-authors please speak up and address Dan's
> question in technical terms?
> 
> In particular, I like to know what you consider the essential
> technical features making COPS-PR more desirable than other protocols
> to push configuration information (like NETCONF) that seem to have
> gained more community support during the last few years (at least in
> the IETF).
> 
> /js
> 
> -- 
> Juergen Schoenwaelder Jacobs University Bremen
> <http://www.eecs.iu-bremen.de/> P.O. Box 750 561, 28725 Bremen, Germany