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Re: [irs-discuss] IRS comments

Acee Lindem <acee.lindem@ericsson.com> Fri, 17 August 2012 16:30 UTC

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From: Acee Lindem <acee.lindem@ericsson.com>
To: Alia Atlas <akatlas@gmail.com>
Date: Fri, 17 Aug 2012 12:30:17 -0400
Thread-Topic: [irs-discuss] IRS comments
Thread-Index: Ac18lZdFnyPgkv6JSu6onZ34W/oIRQ==
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References: <812700A304640D4292205D5E83FC59E1061C211D@p-embx01-eq.jnpr.net> <CAG=JvvjYk_E6+Qdidyyjc5oDss9HeA2aq2pt5ciQeX06fuiWsQ@mail.gmail.com> <CAG4d1reLL2_4KRb6yseJK9WTB47YzumMBGdu+UwcOWXxmE0M8Q@mail.gmail.com> <CAG=JvvjVhGsVcSzEFxDKKfNckQxgQiWeezWvwpcoAOSgOP--Nw@mail.gmail.com> <CAG4d1rd_p6x_+PsHWtsYU=oOCT-GnmnZNL+MHcJf4NEG5boP7A@mail.gmail.com> <B37E6A2CE5957F4E83C1D9845A0FFE38014A33BC4A@MDWEXGMB02.ciena.com> <CAG4d1reWGjUU-z=9Gx_MvetAWF6wM8oUMpQRc9hxOg1MU37X_w@mail.gmail.com> <A3C4E51A53661B4EBEE7C5F5E6FCDEB5025AB94FE6D2@USEXCHANGE.corp.extremenetworks.com> <CAG4d1rfD8_0WgzRqH-OVAxfn1RYNfY_ynwkcmqN3MBYyrn5TnQ@mail.gmail.com> <3512BB31280C39448A9880F61DD54CEB09C07E@xmb-aln-x09.cisco.com> <CAG4d1rcvk1RmRmrpCwiAGx9s0v3X9aPECdeF1Wz7WSuYwzdFKA@mail.gmail.com> <CACKN6JH8eiYty3QOZ+E5Nt0wO3nYn87yB3pKixJK-3dnaOXfLQ@mail.gmail.com> <CACKN6JFMZqOnHU=vEkx8WxwSLjg5MYY=-VoJ7uOt8SAzvbAT6Q@mail.gmail.com> <A3C4E51A53661B4EBEE7C5F5E6FCDEB5025AB94FE847@USEXCHANGE.corp.extremenetworks.com> <B37E6A2CE5957F4E83C1D9845A0FFE38014A33C0A0@MDWEXGMB02.ciena.com> <CAG4d1rehfWk-HX27eysze8zdDzjNk4h4wwj2zV6_WJWxoNxY8Q@mail.gmail.com> <B37E6A2CE5957F4E83C1D9845A0FFE38014A33C26F@MDWEXGMB02.ciena.com> <B17A6910EEDD1F45980687268941550FB7B7B6@MISOUT7MSGUSR9I.ITServices.sbc.com> <B37E6A2CE5957F4E83C1D9845A0FFE38014A33C2BD@MDWEXGMB02.ciena.com> <CAG4d1rdtSGF6ey1-bFfzQ+xf5YXLZbjxu6bFJSKVuYLSQJOK8w@mail.gmail.com> <B37E6A2CE5957F4E83C1D9845A0FFE38014A33C55C@MDWEXGMB02.ciena.com> <CAG4d1reK1Q832Yt0nXAg9A4H5Qit+y3PSycVYj1w32Es5UWT2Q@mail.gmail.com>
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Cc: "Shah, Himanshu" <hshah@ciena.com>, "irs-discuss@ietf.org" <irs-discuss@ietf.org>
Subject: Re: [irs-discuss] IRS comments
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On Aug 16, 2012, at 12:23 PM, Alia Atlas wrote:

> ACLs as in for BGP policy

I would hope IRS will provision BGP policy in 2012 with a constructs more powerful than ACLs. Perhaps, Routing Policy Specification Language (RFC 2622) or something similar.

Acee 

> or as in policy-based-routing/firewalls?
> Both would be likely needed.
> 
> ifMIB info?  I'm not sure what aspects you are poking at.  In terms of
> reading information for the topology export, yes...  In terms of
> writing state, I don't think so...
> 
> Alia
> 
> On Thu, Aug 16, 2012 at 10:42 AM, Shah, Himanshu <hshah@ciena.com> wrote:
>> This is precisely the answer I was looking for.
>> It's a domain issue. This is how IRS distinguishes itself from OpenFlow/ForCES/GSMP etc etc
>> 
>> Understand the reasoning but was hoping that IRS would provide one uniform interface - top to bottom,
>> so implementers do not have to deal with supporting multiple utilities.
>> 
>> What about ACL (Access Control List), ifMIB specific info etc. (trying to get sense on the lowest layer that IRS will cover)
>> 
>> Thanks,
>> himanshu
>> 
>> 
>> -----Original Message-----
>> From: Alia Atlas [mailto:akatlas@gmail.com]
>> Sent: Wednesday, August 15, 2012 10:57 PM
>> To: Shah, Himanshu
>> Cc: UTTARO, JAMES; irs-discuss@ietf.org
>> Subject: Re: [irs-discuss] IRS comments
>> 
>> What is the benefit of allowing access to the FIB vs. the associated complexity?
>> If something wants to inject state directly into the forwarding plane, isn't that what ForCES or OpenFlow is for?
>> 
>> Why get into low-level assembly when we've got a C-equiv?  (Still not a higher level language that apps might speak with associated abstractions, but closer).
>> 
>> Alia
> 
> ---snip---
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