[c-nsp] routing multicast between vlans on a 3560

[Cord MacLeod]

I'm curious as to the effects of multicast routing between vlans on a  
3560.  Are there any major performance hits?  The devices are at  
around 10% CPU right now, so I'm not particularly worried.  Also, I've  
seen some examples of how to do this from Cisco's website, http://www.cisco.com/en/US/tech/tk828/technologies_tech_note09186a0080094821.shtml 
.  I've not worked much with multicast in the past, so this is  
somewhat new territory for me.  Anything else I'm not thinking of that  
I should be aware of?