[Xorp-users] Problem with Xorp passing BSR messages

[Syed Khalid]

Mark
  Can you open a bug on this? We will try to replicate - with Cisco 7200 -
in the Xorp QA lab.
Syed

On Wed, Apr 15, 2009 at 9:11 AM, Williams, Mark <william at losrios.edu> wrote:

> I will be deploying Xorp on Linux systems soon to handle multicast routing
> with PIM-SM. Everything has worked well, but I have had problems with
> bootstrap router messages. In my testing, I used two Alcatel-Lucent routers
> and an Xorp system. Each router had two interfaces, and  were in a chain in
> Alcatel - Xorp - Alcatel order.
>
> When the Xorp box was configured as the candidate BSR, the Alcatel routers
> both picked up the Xorp box as the BSR after the election time passed.
>
> However, if the Alcatel router on the "left" was configured as the CBSR,
> there was a strange problem. The Xorp box would learn the correct BSR, and
> so would the Alcatel router on the "right". However, the boostrap messages
> to the Alcatel router on the "right" did not get passed frequently enough,
> and the BSR would expire after 130 seconds. Then about 30 seconds later, the
> Alcatel on the "right" would pick of the BSR again. It seemed that the BSR
> had to expire before it would get renewed. The BSR never expired on the Xorp
> box.
>
> I reversed the order and put the BSR on the "right", and got the same
> results. I could not find any tunable parameters for BSR expiration on the
> Alcatels or the Xorp system.
>
> Any help is appreciated.
>
> -Mark Williams
>
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