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aix network nic nics single or teamed

Posted on 2010-09-21
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Last Modified: 2013-11-17
i was assigned this one line task.
"I need to know what the following servers are and if the nics are teamed or if they are single nics."
server1
server2

i need help of people from experts-exchange to help me find the asked information.
how can i find out if the nics are teamed up or single nics?

thanks
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Question by:assistunix
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woolmilkporc earned 500 total points
ID: 33727968
Hi again,

you must be able to log in to the servers in order to decide whether those NICs are teamed or not, else there is no possibility, except for employing rather elaborate sniffing technologies!

Anyway, log in to the respective server and issue

ifconfig -a

You will see something like

en2: flags=1e080863,80<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD,CHAIN>
        inet xxx.xxx.xxx.xxx netmask 0xffff0000 broadcast xxx.xxx.xxx.xxx
         tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1

en2 is the name of the network interface driver. Maybe there is more than one of that kind.

The NIC belonging to enx is always entx, so for en2 it's ent2.

Issue against this device

lsdev -l ent2

If you see

ent2 Available  EtherChannel / IEEE 802.3ad Link Aggregation

there are teamed NICs. Check which adapters make up the team with

lsattr -El ent2

The names of the primary adapters can be found beneath "adapter_names", the name of a possibly configured backup adapter appears beneath "backup_adapter".

If lsdev -l ent2 shows something like

ent2 Available  Virtual I/O Ethernet Adapter (l-lan)

there is no teaming and you're at a virtual LPAR with the adapter in question being. a virtual device coming from a VIO server.

Should lsdev -l ent2 show something like

ent2 Available 03-08 2-Port 10/100/1000 Base-TX PCI-X Adapter

t
here is also no teaming, and the device is a real device, which can be found (of course) in standalone boxes, but as well in LPARs.

To repeat it: you must examine the device belonging to the driver found with ifconfig -a !

wmp


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