From: William Chen (kwchen@netvigator.com)
Date: Fri Dec 26 2003 - 00:51:59 GMT-3
Hi,
BSR don't need any multicast run in dense-mode. It works like that when
a router receive a BSE messages it floods to all the PIM neighbors. It works
like OSPF LSA flooding. Please see Routing TCP/IP Volume II.
Therefore, If you are asked to configure Auto-RP, you need to set the
interface to sparse-dense-mode.
If you are asked to configure BSR, you can set the interface to
sparse-mode only.
Best Regards,
William Chen
----- Original Message -----
From: "Pun, Alec CL" <Alec.CL.Pun@pccw.com>
To: "Ozgur Guler (Garanti Teknoloji)" <OzgurG@garanti.com.tr>;
<ccielab@groupstudy.com>
Sent: Friday, December 26, 2003 11:37 AM
Subject: RE: PIMv2 BSR
> Ozgur,
>
> I've tried BSR and it works in sparse-mode-only. But BSR messages do not
> use 224.0.1.40 and 39 like auto-rp. It should be using 224.0.0.13. My
> question is if no dense mode is configured, how can this multicast group
get
> flooded and mrouteed to all routers ??
>
> BTW, from DocCD, it said :
> Sparse mode and dense mode are properties of a group, as opposed to an
> interface.
>
> How can we make a group to act as dense or sparse mode ? It seems the
> configuration only exists on a per-interface basis.
>
> thanks
> alec
>
>
>
> -----Original Message-----
> From: Ozgur Guler (Garanti Teknoloji) [mailto:OzgurG@garanti.com.tr]
> Sent: Friday, December 26, 2003 2:19 AM
> To: Pun, Alec CL; ccielab@groupstudy.com
> Subject: RE: PIMv2 BSR
>
>
>
>
> bsr like auto-rp is to distribute rp info, so it is for sparse-mode.
> multicast traffic for groups 224.0.1.40 and 224.0.1.39 are flooded in
dense
> mode
> so again no default rp config needed, like in sparse-dense mode.
>
> Ozgur
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Pun, Alec CL
> Sent: Thursday, December 25, 2003 7:17 PM
> To: ccielab@groupstudy.com
> Subject: PIMv2 BSR
>
>
> Does BSR work in sparse-mode-only ? Do the BSR messages (224.0.0.13) get
> flooded to all C-RP by dense-mode, which is similar to Auto-rp ?
>
> thanks
> alec
>
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