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Re: MULTICAST QUESTION posted 09/22/2008
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I guess higher IP address should be used (If I recall correctly).

On 9/21/08, Li Xiao Shawn NCS <xiaoshawn@xxxxxxxxxx> wrote:
>
> Hi,
>    I only tested the pim join for share tree where the receiver join
> towards the RP.. below is a simple illustration:
>
> Receiver---R1========R2(RP)-------R3
>
>        R1 and R2 is having two equal cost P2P link, with nw 1.1.12.0/24
> and 1.1.21.0/24.  the finding is.. when ip igmp join command is
> configured on R1, the pim join only send on 1.1.21.0 link with upstream
> neighbor being 1.1.21.2 (r2 ip).
>
>        When the 1.1.12.0 link was changed to 1.1.121.0, immediately we
> see the pim join message being sent to 1.1.121.0 link and the upstream
> neighbor becomes 1.1.121.2.  So.. seems like when you have equal cost to
> the RP, the highest IP link wins?  Have not tested the SPT though..
>
> Best regards,
> Shawn
>
> -----Original Message-----
> From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
> ehiwe peter
> Sent: 22 September 2008 03:55
> To: ccielab@xxxxxxxxxxxxxx
> Subject: MULTICAST QUESTION
>
> HI ,
>
> Just wondering
>
> If  a router has 2  paths to an upstream multicast source of equal
> unicast cost on what interface will the multicast traffic be received
> or what will be the RPF interface and can load balancing of multicast
> traffic be acheived as well?
>
> Thanks
>
>
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