Originally posted by: haroon-aix

Hi,
My Network card ent1 is not working. I have an etherchannel with ent1 and ent2. I do not see any blinkling lights for ent1. I have checked the status of the network with entstat -d en3. I have run a configmagr command cfgmr -v. How can I resolve the problem? ent2 is working fine.

I would appreicate your help very much!

Many Thanks
Haroon-aix
Ethernet statistics for ent1 is following.
ETHERNET STATISTICS (ent1) :
Device Type: 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)

Transmit Statistics: Receive Statistics:

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Packets: 0 Packets: 0
Bytes: 0 Bytes: 0
Interrupts: 0 Interrupts: 0
Transmit Errors: 0 Receive Errors: 0
Packets Dropped: 0 Packets Dropped: 0
Bad Packets: 0
Max Packets on S/W Transmit Queue: 0
S/W Transmit Queue Overflow: 0
Current S/W+H/W Transmit Queue Length: 1

Broadcast Packets: 0 Broadcast Packets: 0
Multicast Packets: 0 Multicast Packets: 0
No Carrier Sense: 0 CRC Errors: 0
DMA Underrun: 0 DMA Overrun: 0
Lost CTS Errors: 0 Alignment Errors: 0
Max Collision Errors: 0 No Resource Errors: 0
Late Collision Errors: 0 Receive Collision Errors: 0
Deferred: 0 Packet Too Short Errors: 0
SQE Test: 0 Packet Too Long Errors: 0
Timeout Errors: 0 Packets Discarded by Adapter: 0
Single Collision Count: 0 Receiver Start Count: 0
Multiple Collision Count: 0
Current HW Transmit Queue Length: 1

General Statistics:

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No mbuf Errors: 0
Adapter Reset Count: 1
Adapter Data Rate: 2000
Driver Flags: Up Broadcast Simplex
Limbo 64BitSupport ChecksumOffload
PrivateSegment LargeSend DataRateSet
#AIX-Forum

Originally posted by: PontiacGeronimo

do you have ent1 and ent2 in NIB configuration or 802.3ad aggregation?

when I check a NIB etherchannel adapter configuration with enstat I can find info:

------------------------------------------------------------- Primary adapter - ent0: ====================== 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902) Specific Statistics: ------------------------------------------------------------------------ Link Status: Up Media Speed Selected: 1000 Mbps Full Duplex Media Speed Running: 1000 Mbps Full Duplex ................ ................   ------------------------------------------------------------- Backup adapter - ent2: ======================   2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902) Specific Statistics: ------------------------------------------------------------------------ Link Status: Up Media Speed Selected: 1000 Mbps Full Duplex Media Speed Running: 1000 Mbps Full Duplex ................ ................

if link is not up you should check you cabling or swtich port status.
If you see link up for both adapters configured in etherchannel, then you could test failover in your etherchannel running command:

/usr/lib/methods/ethchan_config -f ent3 # ent3 is the etherchannel device

If network stoped work you can run the command once again or it will be done automatically after a few seconds.
#AIX-Forum

Originally posted by: haroon-aix

Thank you very much for you reply!

I guess I have a NIB configuration.In the etherchannel configuration
Backup Adapter NONE
Below is the Info that I see when I do a entstat -d ent3.

With the command /usr/lib/methods/ethchan_config -f ent3 the Failover does not take place.I tried it over smit too. I try to remove the etherchannel and readd the inteface but it does not work either. The Network traffic is going over the NIC. I did a lsdev -Cc on adapter to see if the adapter is avaialable. It shows as available.33

ent0 Available 07-08 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)
ent1 Available 07-09 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)
ent2 Available 09-08 10/100/1000 Base-TX PCI-X Adapter ()
ent3 Available EtherChannel / IEEE 802.3ad Link Aggregation
What could I still do?
ETHERNET STATISTICS (ent3) :
Device Type: EtherChannel

Statistics for every adapter in the EtherChannel:

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ETHERNET STATISTICS (ent1) :
Device Type: 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)

Number of adapters: 2
Operating mode: Standard mode
Hash mode: Destination IP address
2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902) Specific Statistics:

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Link Status : Up
Media Speed Selected: Auto negotiation
Media Speed Running: 100 Mbps Full Duplex

arfnode2-lg #/usr/lib/methods/ethchan_config -f ent3

ethchan_config: 0950-033 You may not force a failover if there is no backup adapter defined, errno = 22

Thanks
Haroon
#AIX-Forum

Originally posted by: PontiacGeronimo

if you have no backup in your etherchannel configuration adapter and both physical adapters are configured on primary adapter list but switch ports are not channelled then I don't know how they should be used. maybe randomly - but without aggregation.
I would propose to change such configuration so one adapter is on primary list and second one on backup adapters list (of course if switch ports are not channelled).

you could also unconfigure your etherchannel and check network functionality separately on each adapter (one-by-one). for etherchannel 802.3ad both ports should operate on the same speed.
#AIX-Forum

Originally posted by: haroon-aix

Thanks for the help!
#AIX-Forum