4 port 10/100 NIC causing hostflapping (use etherchannel?)

[Phadeout]

Ok, this should be a simple question for someone, I hope. I have a Sun e450 using a 4 port 10/100 NIC on a Cisco 4506 (sup II+) connected to 4 consecutive ports (3/1, 3/2, 3/3, 3/4). It autonegotiates just fine, and transfers data just fine (no errors). But the switch keeps prompting me with hostflapping errors. I understand why it's doing this (since a single device/macaddress is using 4 ports), but I would like it fixed so I don't keep getting the hostflapping messages. Would setting up etherchannel on these 4 ports solve the issue?

thanx

 

[baddos]

Yes... You need to setup an etherchannel port group on those ports, but you also need to configure the NIC on your OS for a FEC port group as well.

 

[Phadeout]

The Sun network card is already configured using Sun Trunking Software 2.0 The trunk works fine, but the switch keeps prompting the console with hostflapping errors. I think if I configure L2 Etherchannel on those 4 ports, it should solve the problem.

 

[Phadeout]

Sorry, the trunking software is Version 1.2 (was thinking of something else). Anyways, the trunk uses MAC-hashing to determine source and destinatoin port selection (default policy for this NIC).