Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread tony . li
Hi Robert, > How about we first define an "Area Prefix" (IP address being a property of an > area) then assign SID to it ? That’s effectively what Bruno is proposing. It adds some additional configuration and management overhead. Do you think it’s worthwhile? > How odd it may sound I

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread Robert Raszuk
Hi Les, Well I am talking about IP routable identifier which I can place on the front of the packet and which can assure that the packet will arrive at given area. Then Area SID becomes analogy of Node SID :) Thx On Mon, Aug 3, 2020 at 7:40 PM Les Ginsberg (ginsberg) wrote: > Robert – > > >

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread Les Ginsberg (ginsberg)
Robert – Both OSPF and IS-IS have area identifiers which are advertised. Why would we need to invent another identifier for an area? Les From: Robert Raszuk Sent: Monday, August 03, 2020 10:31 AM To: Les Ginsberg (ginsberg) Cc: bruno.decra...@orange.com; tony...@tony.li; lsr@ietf.org

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread Les Ginsberg (ginsberg)
Robert – You need to allow that not everything in the world is identified by an IP/IPv6 address. If you want an IP address shared by all nodes in an area there is already a mean of doing that: assign a common anycast address on all nodes. The value add (if there is any) of an Area SID is that

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread Les Ginsberg (ginsberg)
Bruno – The concept of “Area SID” – at least to me – is “please forward to any node in the Area advertising the Area SID”. You, however, seem to be asking for either: a)The node originating the Proxy LSP to advertise a Node SID for a loopback address on that node OR b)The node originating

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread Robert Raszuk
*Les,* *> But currently the draft is defining a SID which is NOT associated with a prefix.* + > *But if the proposal is to use a SID associated with a prefix then I see no need to invent a new SID advertisement.* How about we first define an "Area Prefix" (IP address being a property of an area)

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread Robert Raszuk
Les, > You need to allow that not everything in the world is identified by an IP/IPv6 address. Thought we are talking about WAN networks here and not about the world :) > assign a common anycast address on all nodes. First not all nodes need to participate here. At most ABRs. Then if you

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread Les Ginsberg (ginsberg)
Bruno – Inline. From: bruno.decra...@orange.com Sent: Monday, August 03, 2020 8:52 AM To: Les Ginsberg (ginsberg) ; tony...@tony.li Cc: lsr@ietf.org Subject: RE: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt Les, From: Les Ginsberg (ginsberg)

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread Acee Lindem (acee)
From: Lsr on behalf of "Les Ginsberg (ginsberg)" Date: Monday, August 3, 2020 at 12:32 PM To: Bruno Decraene , Tony Li Cc: "lsr@ietf.org" Subject: Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt Bruno – Inline. From: bruno.decra...@orange.com Sent: Monday,

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread bruno.decraene
Les, From: Les Ginsberg (ginsberg) [mailto:ginsb...@cisco.com] Sent: Monday, August 3, 2020 5:22 PM To: DECRAENE Bruno TGI/OLN ; tony...@tony.li Cc: lsr@ietf.org Subject: RE: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt Bruno – The concept of “Area SID” – at least

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread tony . li
Hi Acee, > [Acee] I know you guys have all thought about this a lot more than myself. > However, I’d envisioned this new Area SID as taking one to the closest entry > to the abstracted area. The next SID in the stack would either take you to a > destination inside the area or would use the

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread Robert Raszuk
Hi Tony, If I am not mistaken that additional overhead would only need to happen on participating in this game ABRs. If so I think this is worthwhile. > Well, that becomes an anycast tunnel endpoint Endpoint ? Not midpoint ? Or better sort of ski lift transit point with embedded direction in

Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt

2020-08-03 Thread bruno.decraene
Hi Tony, From: Tony Li [mailto:tony1ath...@gmail.com] On Behalf Of tony...@tony.li Subject: Re: [Lsr] New Version Notification for draft-ietf-lsr-isis-area-proxy-02.txt Hi Bruno, Thank you for the clarification. [Bruno] You are very welcome. Thank you for listening. I understand completely