Hi there,

·         Do I need a crossover cable? – No, you shouldn’t need it to be a crossover cable.

·         Can I connect from a 1G nic to a 10G nic? - Are you talking about a DD2500? Yes, you can connect between a 1000BaseT port (EthMa, b, c, d) and 10000BaseT port (ethMe, f) but they will run at 1Gbe. LC optical 10Gb to 1GB – no you can’t I’m afraid.

·         How do I make sure I replicate using that port on the source Data Domain –

·         There are a few ways but;

·         Put the IP’s of these 2 ports (one from each DDR) into a separate subnet from the rest of your NICs, add a host file entry and configure the replication between them using that hostname;

·         To associate the fully qualified domain name bkup20.yourcompany.com and the hostname of bkup20 with an IP address of 192.168.3.3:

·         # net hosts add 192.168.3.3 bkup20.yourcompany.com bkup20

Then there is only one path it can use.

Maybe configure these direct ports as jumbo – mtu 9000.

Regards,

Jonathan Brooks