Re: BGP-4 changes

[Curtis Villamizar <[e-mail]>]

In message <[e-mail]>om>, Yakov Rekhter writes:
> Folks,
> 
> Let me propose that we'll make the following changes to the
> spec:
> 
> 1. Add to 5.1.4 the following:
> 
>   MULTI_EXIT_DISC shall not be considered when comparing routes received from
>   different neighboring ASs.
> 
>   When a route with the MULTI_EXIT_DISC attribute is received over an
>   external link it must be possible (based on local configuration) to 
>   remove or override the value of the attribute. This shall be done 
>   prior to determining the degree of preference of the route.
> 
> 2. Replace 9.1.2.1 clause (a) with the following:
> 
>      a) If the local system is configured to take into account
>       MULTI_EXIT_DISC, and the candidate routes differ in their
>       MULTI_EXIT_DISC attribute but were received from the same
>       neighboring AS, select the route that has the lowest
>       value of the MULTI_EXIT_DISC attribute.  A route with
>       MULTI_EXIT_DISC shall be preferred to a route without
>       MULTI_EXIT_DISC.
> 
> Comments ?
> 
> Yakov.


This is insufficient for the reasons that were cited in numerous
threads on this list.

I suggested text to correct the looping problem and so did Rich
Woundy.

Curtis