[BarryStiefel]

Originally Posted by Sharky

Dear Sirs:

I request assistance with the following item:

I am installing a cluster in LOAD SHARING Unicast and it works OK, and I tried to make the switch to LOAD SHARING Multicast, but at the moment to implement it crashes, I may not send or receive mail.

The configuration at the different devices:

1. Parameters used in SW.

A. Disabling IGMP Snooping

To disable IGMP snooping run:

No IP IGMP snooping



B. Disabling Multicast Limits

To disable multicast limits run:

no storm-control multicast level (On all the interface the SW)

1. Parameter used on the Router

a. Configuring a Static ARP Entry on the Router

arp _._._._ (ip cluster) 01:00:5E:__:__:__ (mac multicast) arpa

Between the cluster check point and the mail server there is a pix, but in this PIX y not set no parameter.

Please, I request your help for find if there is some other parameter, that I need to set up on the Switch, router and/or PIX, thanks for your help.

What I keep hearing is that the more expensive your switch is, the less likely it's able to support Multicast mode. Buy a cheap switch or use Unicast mode.