Originally posted by: digam

I am using IBM p5 570 AIX 5300 04 FSP. All of sudden my telnet and ftp connection became extremly slow.. what cause the problem???? Please help....

digam
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Originally posted by: tony.evans

Well, none of use here can tell you what caused the problem.

My advice would be, find out what changed because that's likely the cause.

Is it just the response to the initial connection request, or is it slow throughput? If it's the former, I'd put money on it being DNS related.

Maybe spend some time doing some investigation at your end and then post more details to give us some chance at helping? Otherwise it's a bit like saying 'my car no longer starts, please help'.
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Originally posted by: KarlM

I do wish IBM 2nd level support would stop using this forum to resolve client PMRs :-^)
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Originally posted by: digam

My p570 box is having 3 network port. 2port is in sys planner board and 1 port is in card. I configured only 2 network points ( one from planner and one from card) and giving two ip with the same network ie. 192.168.6.141 and 192.168.6.143

Both network cards are connected with one single cisco swithch and my pc is also connected with the same swithch.

I also have another same server in different network and another location. But both the servers and interconnect.

I can do telnet to the another server which is in different location and the telnet response will come within a second but if I do telnet to the server which is in my location will take more than 3/4 mins.
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Originally posted by: tony.evans

Your name resolution is broken somewhere (very high chance this is the cause).

Try adding your workstation IP address and hostname to the /etc/hosts file on the machine you're struggling to connect to, if this resolves the problem it confirms the cause, then you just need to find the reason.
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Originally posted by: digam

It doesn't work...

Do I need to restart the server after inserting my pc ip and host name in /etc/hosts file.
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Originally posted by: tony.evans

No, but you do need to provide more detail than 'it doesn't work', good luck.
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Originally posted by: digam

what detail u want from me...
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Originally posted by: SystemAdmin

Hi,

Seems to me, configuring two interfaces on the same partition on the the network could cause some strange actions.

For example, if you send information throught your TCP/IP interfaces to a host 192.168.6.141, whith witch sender IP the packets will be send ? 192.168.6.141 or 192.168.6.143 ?
I asked the question to the support and one answer was : the AIX kernel choose ... => not really great for the security !
Same probleme with the gateway : on wich interface it was configured ? ...

You may try this to clear the situation ( if you want to keep two interfaces on the network for performances ):
1/ Remove the IP on en1, and remove en1
2/ Remove the IP on en2, and remove en2
Suppose ent0 is the unused interface.

3/ Make an Etherchannel with ent1 and ent2 , witch build an ent3. If you do that, pay attention to the type of etherchannel used, your network admin need to change the port configuration on switchs.

4/ Add IP on interface en3 and an alias on en3 for the seconde address IP.

If you don't have performance needs, you may use only en1 with the fisrt IP and the second on alias. No need to change the switch conf.

May this help you.
Regards
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Originally posted by: esv

is the network mask correctly setup?

are your adapters connecting to the right speed?

We've seen lot of problems when the network switch port is defined at 100FD and the NIC is set to auto/auto, it connects at 100 Half duplex., you can check your NIC's speed using: entstat -d entX.

also, the p570 seems fairly new for this to be an issue, I've seen issues where the OS is trying to use newer features like CHECKSUM_OFFLOAD on older NICs but the adapters don't support them, the biggest offenders are CHECKSUM_OFFLOAD and CHAIN options but there might be others such as LARGESEND, GROUPPRT, PSEG, etc. check your NIC's firmware and the ifconfig -a output.

I've ran multiple hosts with multiple NICs attached to the same subnetwork without problems (speed related), now we got rid of most of them but still we had lots of them on every single AIX version.

good luck.
esv.
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Originally posted by: digam

Thanks everyone for helping me. At last I solved the problem by restoring the system backup from tape.
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