Re: [spring] [Idr] Regarding "Semantics Independent" Flowspec//答复: 答复: New draft - Flowspec Path Redirect

2015-10-27 Thread Robert Raszuk
Gunter, No one in BGP land will question that decoupling and indirection is a good thing. But why do you need new PATH_ID rather then just using community as a marker ? Be it regular, extended or wide ? Cheers, R. On Oct 27, 2015 10:01 AM, "VAN DE VELDE, Gunter (Gunter)" < gunter.van_de_ve...@al

Re: [spring] [Idr] Regarding "Semantics Independent" Flowspec//答复: 答复: New draft - Flowspec Path Redirect

2015-10-27 Thread Robert Raszuk
My question was specifically why *new* one is needed to just work as a marker ? R. On Oct 27, 2015 10:44 AM, "VAN DE VELDE, Gunter (Gunter)" < gunter.van_de_ve...@alcatel-lucent.com> wrote: > It ‘is' a community… just one used to indicate a > redirection/traffic-steering service… > > G/ > > From:

Re: [spring] [Idr] Regarding "Semantics Independent" Flowspec//答复: 答复: New draft - Flowspec Path Redirect

2015-10-31 Thread VAN DE VELDE, Gunter (Gunter)
When configuring a PBR on a router using CLI you identify the ‘interesting’ traffic and the ‘actions’ upon the interesting traffic. PBR does not do anything for tunnel-setup or signaling… I do not think that Flowspec should be involved at all with set-up or tunnel initiation as there are much b

Re: [spring] [Idr] Regarding "Semantics Independent" Flowspec//答复: 答复: New draft - Flowspec Path Redirect

2015-10-31 Thread VAN DE VELDE, Gunter (Gunter)
Suggested in the draft: The ‘C’ bit to copy the original traffic onto the redirect path. There is a ‘TID’ field to allow nested or sequenced redirection service To be discussed: Type field: indication of additional Path_ID context if desired (I.e. Type1: redirect-to-IP; Type2: redirect-to-PATH_ID

Re: [spring] [Idr] Regarding "Semantics Independent" Flowspec//答复: 答复: New draft - Flowspec Path Redirect

2015-10-31 Thread VAN DE VELDE, Gunter (Gunter)
It ‘is' a community… just one used to indicate a redirection/traffic-steering service… G/ From: mailto:rras...@gmail.com>> on behalf of Robert Raszuk mailto:rob...@raszuk.net>> Date: Tuesday 27 October 2015 at 10:37 To: Gunter Van de Velde mailto:gunter.van_de_ve...@alcatel-lucent.com>> Cc: "r

Re: [spring] [Idr] Regarding "Semantics Independent" Flowspec//答复: 答复: New draft - Flowspec Path Redirect

2015-10-31 Thread Haoweiguo
Hi Gunter, Understood your design method is to just specify PATH_ID in flowspec message, and let the routers do local recursive action to select a set of specific tunnel(s), the tunnel and PATH_ID association should be configured beforehand at each router. The BGP flowspec initiator doesn't nee