Archive for August, 2006

Sam Jackson is My Brother

It doesn’t really matter that Snakes on a Plane may not be remembered as a great movie 100 years from now. It doesn’t matter at all what anyone else thinks. Sam Jackson is my brother, and that is all that matters.
Sam Jackson is my brother

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IP Multicast Addresses and Resources

If you are not familiar with multicast, these are good resources for stumbling your way through it. I have a couple of PIM environments, so these are here for my reference.

multicast addresses

PIM and DVMRP build multicast trees, and are protocols for delivering multicast datagrams. The main difference between these two protocols is that PIM doesn’t rely on any unicast protocols to operate. Otherwise they are pretty much the same thing. They both build and maintain separate trees for every multicast source/group pair.

Jetcore Foundry gear will allow for hardware forwarding of multicast datagrams… the command is:

ip multicast-perf

1 million foot overview

A much more thorough overview is here: Multicast HOWTO

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