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NIC Port Status Down

Binubaby
Frequent Advisor

NIC Port Status Down

Hello

 

I have a dual port NIC card in rx6600 server - HPUX 11.31

One of the port status showing DOWN and outside communication not working through this port.

I am able to configure an IP to this port (lan0) and ping itself.

While installing HPUX the cable was uplugged, I am not sure this is the issue or not?

Is there is any configuration file we can change to get this port communication back?

 

#nwmgr output

lan0           DOWN      0x00215ADE6CB6 iether   1000Base-T

 

#lanscan ouput

0/4/2/0/6/0 0x00215ADE6CB6 0   UP    lan0 snap0     1   ETHER     Yes     119

 

Please advise

Thanks

BB


 

 

 

 

 

BB
6 REPLIES
Torsten.
Acclaimed Contributor

Re: NIC Port Status Down

During installation you cannot set up a NIC while the cable is disconnected.

Check /etc/rc.config.d/netconf for the configuration.


Do also

# nwmgr -g -v -c lan0
and
# ifconfig lan0
for the details.

Hope this helps!
Regards
Torsten.

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Matti_Kurkela
Honored Contributor

Re: NIC Port Status Down

> I am able to configure an IP to this port (lan0) and ping itself.

 

This does not actually test the hardware: the TCP/IP protocol driver will detect and loop back any traffic (including pings) sent to the system's own IP addresses before it reaches the NIC hardware driver.

 

Maybe the cable is still unplugged or bad?

 

On my 11.31 system, if I unplug a cable from a NIC, I see lanscan showing UP and nwmgr showing DOWN, exactly like what you're seeing.

MK
Binubaby
Frequent Advisor

Re: NIC Port Status Down

Hi Torston -

 

There is no configuration for lan0 in the netconf

 

Outputs

 

# nwmgr -g -v -c lan0
lan0:
   Interface State =DOWN
   Probable Cause for State = Cable disconnect
   MAC Address = 0x00215ADE6CB6
   Subsystem = iether
   Interface Type = 1000Base-T
   Hardware Path = 0/4/2/0/6/0
   NMID = 1
   Feature Capabilities = Physical Interface
                          IPV4 Recv CKO
                          IPV4 Send CKO
                          VLAN Tag Offload
                          64Bit MIB Support
                          IPV4 TCP Segmentation Offload
                          UDP Multifrag CKO
   Feature Settings = Physical Interface
                      VLAN Tag Offload
                      64Bit MIB Support
   MTU = 1500
   Speed = 1 Gbps Full Duplex Only (Autonegotiation : On)
      The link is down. Speed and other link state information are undefined.
      Only the configured speed is shown.
#
# ifconfig lan0
ifconfig: no such interface
# lanscan
Hardware Station        Crd Hdw   Net-Interface  NM  MAC       HP-DLPI DLPI
Path     Address        In# State NamePPA        ID  Type      Support Mjr#
0/4/2/0/6/0 0x00215ADE6CB6 0   UP    lan0 snap0     1   ETHER     Yes     119
0/6/1/0/6/0 0x001708D17220 2   UP    lan2 snap2     3   ETHER     Yes     119
LinkAgg0 0x00215ADE6CB7 900 UP    lan900 snap900 6   ETHER     Yes     119
LinkAgg1 0x000000000000 901 DOWN  lan901 snap901 7   ETHER     Yes     119
LinkAgg2 0x000000000000 902 DOWN  lan902 snap902 8   ETHER     Yes     119
LinkAgg3 0x000000000000 903 DOWN  lan903 snap903 9   ETHER     Yes     119
LinkAgg4 0x000000000000 904 DOWN  lan904 snap904 10  ETHER     Yes     119

 

BB

BB
Binubaby
Frequent Advisor

Re: NIC Port Status Down

Hi - Network team confirmed that the cable is working OK

 

BB

BB
Torsten.
Acclaimed Contributor

Re: NIC Port Status Down

>> The link is down. Speed and other link state information are undefined.
Only the configured speed is shown.
#


The link is down! Check cable and switch port.

Hope this helps!
Regards
Torsten.

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Bill Hassell
Honored Contributor

Re: NIC Port Status Down

>> Network team confirmed that the cable is working OK

 

Did the network team actually see the MAC address in the switch port report?

Or did they just wiggle the cable?



Bill Hassell, sysadmin