Re: Sec. 3, item 3 fig. in draft-vassuer-ccamp-inter-area-as

[Arthi Ayyangar <arthi@juniper.net>]

Hi Vishal,

Here you go,


     <-- AS 1 ---> <------- AS 2 -----><--- AS 3 ---->

               <---BGP--->            <---BGP-->
CE1---R0---X1-ASBR1-----ASBR4--R3---ASBR7----ASBR9----R6
      |\     \ |       / |   / |   / |          |      |
      | \     ASBR2---/ ASBR5  | --  |          |      |
      |  \     |         |     |/    |          |      |
      R1-R2---ASBR3-----ASBR6--R4---ASBR8----ASBR10----R7---CE2

      <======= Inter-AS TE LSP(LSR to LSR)===========>
or

<======== Inter-AS TE LSP (CE to ASBR =>

or

<================= Inter-AS TE LSP (CE to CE)===============>



Thanks,
-arthi

> Can you please post a clean figure for this item to the list.
> (Sorry, should have attached the fig. I was referring to.)
>
> As it is, the figure is really difficult to understand (or at
> least I couldn't follow it all).
>
> Thanks,
> -Vishal
>
> ****************************************************************************
> 3) Example of topology for  the inter-AS TE case:
>
> We will consider the following general case, built on a superset of the
> various scenarios defined in [INTER-AS-TE-REQS]:
>
>
>      <-- AS 1 ---> <------- AS 2 -----><--- AS 3 ---->
>
>                <---BGP--->            <---BGP-->
> CE1---R0---X1-ASBR1-----ASBR4--
>                              -
>                              -
>                               -R3---ASBR7---
>                                           -
>                                           -
>                                            --ASBR9----R6
>       |\     \ |       / |   / |   / |          |      |
>       | \     ASBR2---/ ASBR5  | --  |          |      |
>       |  \     |         |     |/    |          |      |
>       R1-R2--
>            -
>            -
>             --ASBR3--
>                    -
>                    -
>                     ----ASBR6--
>                              -
>                              -
>                               -R4---ASBR8--
>                                          -
>                                          -
>                                           ---ASBR10--
>                                                     -
>                                                     -
>                                                     --R7---CE2
>
>       <======= Inter-AS TE LSP(LSR to LSR)===========>
> or
>
> <======== Inter-AS TE LSP (CE to ASBR =>
>
> or
>
> <================= Inter-AS TE LSP (CE to CE)===============>
>
> The diagram above covers all the inter-AS TE deployment cases described
> in [INTER-AS-TE-REQS].
>
>  Vasseur and Ayyangar                                                8
>
>
> ****************************************************************
> Vishal Sharma, Ph.D.
> Metanoia, Inc. (Critical Systems Thinking)
> 888 Villa Street, Suite 200B
> Mountain View, CA 94041-1261
> Phone: +1 408-530-8313. Voice: +1 408-394-6321
> Email: v.sharma@ieee.org. http://www.metanoia-inc.com
> ****************************************************************
>
>