RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffic flow
"Tolga Asveren" <asveren@ulticom.com> Fri, 04 November 2005 15:38 UTC
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From: Tolga Asveren <asveren@ulticom.com>
To: sigtran@ietf.org
Subject: RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffic flow
Date: Fri, 04 Nov 2005 10:20:45 -0500
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This is implementation/traffic type dependent and is not something standardized by M3UA. > -----Original Message----- > From: Prasad, Shashank S (Shashank) [mailto:ssprasad@lucent.com] > Sent: Friday, November 04, 2005 10:28 AM > To: 'Tolga Asveren'; sigtran@ietf.org > Subject: RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffic flow > > > Thanx Tolga. U are right in understanding my question. > > Followup Question: > Since IPSP2 and IPSP3 are serving the same AS, what would determine at > NodeB, if the traffic to IPSP1 is > to be sent via IPSP2 or IPSP3 ? > > > shashank > > -----Original Message----- > From: sigtran-bounces@ietf.org [mailto:sigtran-bounces@ietf.org]On > Behalf Of Tolga Asveren > Sent: Friday, November 04, 2005 8:13 PM > To: sigtran@ietf.org > Subject: RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffic flow > > > Shashank, > > As far as I understand your question: > > You have IPSP1, IPSP2, IPSP3. You have one RK. IPSP sends ASPAC > for this RK > to IPSP2 and IPSP3. IPSP2 and IPSP3 are working in loadsharing > mode. You are > wondering whether IPSP1 will receive traffic from both IPSP2 and IPSP3. > > Yes, it can, but I wouldn't call it traffic being loadshared to > IPSP1. IPSP2 > and IPSP3 are not the same entities. OTOH it makes sense to speak of > loadharing traffic from IPSP1 to IPSP2 and IPSP3 because traffic from a > single source is distrubuted to multiple peers. > > Tolga > > > -----Original Message----- > > From: sigtran-bounces@ietf.org [mailto:sigtran-bounces@ietf.org]On > > Behalf Of Prasad, Shashank S (Shashank) > > Sent: Friday, November 04, 2005 9:48 AM > > To: 'sigtran@ietf.org' > > Subject: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffic flow > > > > > > Hi, > > I had a specific question related to a specific scenario explained below > > (Single Exchange scenario) > > > > NodeA supports 1 PS with 1 IPSP > > NodeB supports 1 PS with 2 IPSPs in Loadshared mode. > > > > > > There are two associations between NodeA and NodeB. > > The first association is between IPSP1 (NodeA) and IPSP2 (NodeB). > > The second association is between IPSP1 (NodeA) and IPSP3 (NodeB). > > > > The IPSP2 and IPSP3, which are serving loadshared for the PS2 on NodeB, > > send an ASP Up to IPSP1 serving for PS1 on NodeA. Which means > > that IPSP2 and > > IPSP3, > > serving a loadshared PS2, are essentially telling NodeA to > > loadshare all the > > traffic > > for PS2, between IPSP2 and IPSP3. > > > > The above concepts are also illustrated below....(I have purposefully > > avoided AS-ACTIVE notification) > > > > > > > > NodeA <------------NodeB------------> > > > > PS1-IPSP1 PS2-IPSP2 PS2-IPSP3 > > | | | > > |<-----ASP Up------------| | > > |-------ASP Up Ack------>| (Assoc #1) | > > | | | > > | | | > > |<--------------------ASP Up------------------------| > (Assoc #2) > > |----------------------------ASP Up Ack------------>| > > | | | > > | | | > > | | | > > |<--ASP Active(Ldshr)----| | > > |------ASP Active Ack--->| | > > | | | > > | | | > > | | | > > |<--------------------ASP Active(Ldshr)-------------| > > |----------------------------ASP Up Ack------------>| > > | | | > > | | | > > |---NOTIFY(AS-ACTIVE)--->| | > > |--------------------------NOTIFY(AS-ACTIVE)------->| > > | | | > > > > > > > > Questions: > > Assuming a single exchange scenario, would the traffic towards > > PS1 on NodeA, > > > > be also loadshared across 2 associations ? > > > > I thought it would and hence another follow-up question: > > It looks like a loadshared peer (NodeB in our case) with > multiple IPSPs, > > is putting a constraint on the NodeA, to ALSO be ready to > receive data on > > multiple associations and possibly loadshared. Is this a fair > > understanding > > ? > > > > > > shashank > > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran
- [Sigtran] M3UA: 1IPSP - multiple IPSPs traffic fl… Prasad, Shashank S (Shashank)
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- Re: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Brian F. G. Bidulock
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- Re: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Brian F. G. Bidulock
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- Re: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Brian F. G. Bidulock
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- Re: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Brian F. G. Bidulock
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- Re: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Brian F. G. Bidulock
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- Re: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Brian F. G. Bidulock
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- Re: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Brian F. G. Bidulock
- Re: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Brian F. G. Bidulock
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- Re: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Brian F. G. Bidulock
- [Sigtran] SE-IPSP definition Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- RE: [Sigtran] SE-IPSP definition Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- Re: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Brian F. G. Bidulock
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Prasad, Shashank S (Shashank)
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren
- RE: [Sigtran] M3UA: 1IPSP - multiple IPSPs traffi… Tolga Asveren