doubt NICs?

[Jose Juan]

Hi Gurus:
I've a small doubt about the NICs of my servers.
I've four L2000 and three N4000. Each server has two NICs in the same network connect in HP switch 4000m.
HP said me that one of the NIC is only backup, but I watch the two NICs has likeness traffic.
Is this possible without FEC cards?


Thanks in advance.

[harry d brown jr]

Are you running MC service guard? or APA?

and what is a FEC?

live free or die
harry

[Jose Juan]

I'm running ServiceGuard, the servers that running ServiceGuard has four NIC. the two NICs that I talk are for comunication with clients.

FEC is Fast EtherChannel

[harry d brown jr]

Then HP must be assuming, either correctly or incorrectly, that your two nic's pointing to the outside world (client side) are also under MCSG control. I'm not an MCSG expert, so I suggest you post this in the HPux Service guard section:

http://forums.itrc.hp.com/cm/CategoryHome/1,,210,00.html


live free or die
harry

[Jose Juan]

I don't think that this concerning MCSG, the other server out of cluster are working in the same manner. The way, i think, is in the switch. Apparently if the nic isn't FEC the switch only support one nic of each server working at time

[Carlos Fernandez Riera]

Hola:

MC/SG uses all cards definied in cluster configuration. Even if one of them is not configured with a IP address, MC/SG is testing it.


See /etc/services:
hacl-hb 5300/tcp # High Availability (HA) Cluster heartbeat
hacl-gs 5301/tcp # HA Cluster General Services
hacl-cfg 5302/tcp # HA Cluster TCP configuration
hacl-cfg 5302/udp # HA Cluster UDP configuration
hacl-probe 5303/tcp # HA Cluster TCP probe
hacl-probe 5303/udp # HA Cluster UDP probe
hacl-local 5304/tcp # HA Cluster Commands
hacl-test 5305/tcp # HA Cluster Test
hacl-dlm 5408/tcp # HA Cluster distributed lock manager


now run netstat -a to see how many port uses MC/SG.

The standby card has it own MAC address, and no IP address. When main card drops, backup asumes only IP addresses from main.


Hope this help.

PD: what is FEC?