From: Jim (quangnn@hptvietnam.com.vn)
Date: Wed May 04 2005 - 06:26:40 GMT-3
On a shared media, the router selected to forward traffic to client is the
one
i) who advertises lowest metric preference ( in other words, lowest AD)
ii) who advertises lowest metric if the metric preference is equal
iii) who has the highest IP address on the network if all other metric are
the same.
PIM bases on other protocols for its routing so you can verify DR selection
by checking the route to Multicast Source in routing and mroute table.
HTH, Jim
----- Original Message -----
From: "Danshtr" <danshtr@gmail.com>
To: "Cisco certification" <ccielab@groupstudy.com>
Sent: Wednesday, May 04, 2005 1:47 PM
Subject: Multicast DR...
> Hello
>
> Reading through multicast documentation, they are mentioning DR and
> queriers which both are intended for deciding which router will
> forward multicast packets to the recievers.
>
> But i couldn't find how the routers, on a shared media, decide which
> one will forward the packets from the source.
>
> Does anyone here knows the answer? I am sure there is... because it works!
>
> --
> Best regards,
> Dan
>
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