Multicast Q

by karan on June 15, 2010

I want to implement Multicast. Instead of a switch can I use a hud to connect 2 routers that are a part of a same multicast group?

here is my scenario

Router A ——— Router B — Hub– Router C

Router A and B are conneced through leased line.

I want to make router B and C a part of a same network, will a hub do or ONLY a switch is needed.

{ 3 comments… read them below or add one }

arul June 15, 2010 at 4:21 am

A hub will work, but of course all traffic on all hub ports is contending for the same bandwidth, so performance may suffer if you have other devices on the hub.
A switch configured for multicast would give better performance since the multicast, as well as unicast traffic, would only be sent out ports where needed.

Kumar June 15, 2010 at 4:21 am

thank you for the quick response….
the hub would be dedicated for the multicast traffic
only 2 ports would be used.. 1 for router B and the other for router C

Kumar June 15, 2010 at 4:21 am

The point of having a switch usually would be that it would be VLAN 802.11q aware, and take care of VLAN tagging.
If you use a hub, if you’re running 802.11q VLANs, the NICs will have to be 802.11q aware.
If it’s vanilla ethernet, then Bob’s your uncle.

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