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Packet Loss on BL460C G1

 
vsnap
Advisor

Packet Loss on BL460C G1

Hi,

we are experiencing a strange issue on several BL460C G1. All Systems are running Server 2003 R2 SP2 in German (which shouldn't affect the Problem).
When pinging the System we see stuff like this:
Zeitüberschreitung der Anforderung.
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Zeitüberschreitung der Anforderung.
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Zeitüberschreitung der Anforderung.
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127
Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.
Antwort von 10.186.225.41: Bytes=32 Zeit<1ms TTL=127

As you can see some pings are OK some seem to just disapear anywhere. Network Team tells me that the Server is acting weired. It receives a paket, ack's it and afterwards requests it again.

The Problem was solved after we upgraded the NC373i NIC to Driver 5.0.13.0 and the bootcode to 4.4.1. But after a few days the Error pops-up again.

Any Ideas what could be responsible for this Issue?
15 REPLIES
JKytsi
Honored Contributor

Re: Packet Loss on BL460C G1

Use autoneg. speed ans disable TOE from NCU.

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vsnap
Advisor

Re: Packet Loss on BL460C G1

Hi,

we already disabled the offloading Stuff - didn't work. Error still presists

Regards,
vsnap
JKytsi
Honored Contributor

Re: Packet Loss on BL460C G1

and You are using autoneg for link speed ? Lates NIC firmwares and drives + NCU installed ?
Remember to give Kudos to answers! (click the KUDOS star)

You can find me from Twitter @JKytsi
wobbe
Respected Contributor

Re: Packet Loss on BL460C G1

If you had cloned the system you could end up with two systems with the same mac address. This would result in a lot of packet loss.
vsnap
Advisor

Re: Packet Loss on BL460C G1

Hi,

we are Running a deployment Solution for Servers so there is no need to clone a System - in other words we never do that.

I can set the NIC to "Auto" or "2.5Gig fixes" Negotiation. Currently we are running on "Auto" as the switches behind the Pass-Thru Module provide up to Gigabit (Network Team confirmed me that we are currently running on 1000/Full).

Regards,
vsnap
JKytsi
Honored Contributor

Re: Packet Loss on BL460C G1

Are You using the _latest_ NIC firmware and server BIOS ? Also what version of the NCU is in use ?
Remember to give Kudos to answers! (click the KUDOS star)

You can find me from Twitter @JKytsi
vsnap
Advisor

Re: Packet Loss on BL460C G1

Hi,

I already ran the latest Firmware Maintenance CD 8.70. I will also check the PSP an Post the Versions of NCU,...

Regards,
vsnap
vsnap
Advisor

Re: Packet Loss on BL460C G1

Hi,

NCU: 9.70.0.15
Network Teaming Intermediate: 9.70.00.0
(we don't use Teaming)
NC373i Driver: 5.0.13.0
VBD Driver Version: 5.0.16.0
Bootcode Version: 4.4.1
Bios Version: I15 07/10/2009

Regards,
vsnap
JKytsi
Honored Contributor

Re: Packet Loss on BL460C G1

Could You check that your network switches are _also_ in autoneg. mode ?
Remember to give Kudos to answers! (click the KUDOS star)

You can find me from Twitter @JKytsi
vsnap
Advisor

Re: Packet Loss on BL460C G1

Hello,

switch is set to Auto and is currently running on 1000/Full.

Regards,
vsnap
JKytsi
Honored Contributor

Re: Packet Loss on BL460C G1

Have You checked the network cable itself =)
Remember to give Kudos to answers! (click the KUDOS star)

You can find me from Twitter @JKytsi
vsnap
Advisor

Re: Packet Loss on BL460C G1

to be honest, no we didn't Server is in a remote Site that isn't accessible that easy. I guess i will give i a try an let a technician replace the Cable. Will update this topic after that job is done (maybe tomorrow...)

Regards an thanks for your help so far,
vsnap
vsnap
Advisor

Re: Packet Loss on BL460C G1

We replaced the cable. Unfortunately without success...
JKytsi
Honored Contributor

Re: Packet Loss on BL460C G1

Can you try server in another server bay ?
Remember to give Kudos to answers! (click the KUDOS star)

You can find me from Twitter @JKytsi
JKytsi
Honored Contributor

Re: Packet Loss on BL460C G1

... and while testing, try another switch port to rule out switch fault.
Remember to give Kudos to answers! (click the KUDOS star)

You can find me from Twitter @JKytsi