Ethernet culprit? Telnet/FTP slow response/timout many time.

[Rajesh SB]

Hi Experts,

One of our lab server rp5470 ethernet is behaving strangly.

When I try to telnet / ftp across the network getting very slow respond and some time timeout.

Any pointer on this issue. How can I isolate problem.

Regards,
Rajesh

[Devender Khatana]

Hi Rajesh,

What are the network card type it is having?

What is the speed setting in the card and switch side?

Sometime auto-negotiation on either end could cause similar problems. Try to fix it one by one like this.

1. Change card speed to 100FD or 10FD as supported by card.

2. Set switch port also to same as of the lan card.( Auto Negotiation shall not be there in both switch port as well as NIC of the server)

3. Monitor network utilization of the server, if this is allready heavily used. Use Glance Plus for the same.

Update here accordingly.

HTH,
Devender

[Patrick Preuss]

Hi,

some questions:

what says "netstat -s", lanadmin -> lan -> display.

Can you ping your default gateway from the UX Machine?

What are the duplex/speed setting under lanadmin and on the switch?

hth

Patrick

[Steven E. Protter]

Hi Rajesh,

try this:

telnet hostname

then:

telnet ipaddress

If there is a significant differential in speed, you've boxed the problem into DNS. /etc/resolv.conf things like that.



Also:

lanscan

lanadmin -x 0


Change zero to the interface you are really connecting to.

You should see full duplex 100 BaseT at minimum. Report any anomalies.

SEP

[Muthukumar_5]

May be problem(s) as like,

i) Taking time to resolve hostname -> ip-address
ii) Routing settings. Check as,

traceroute
how much it is taking

iii) network cable problem
iv) Too many process running by occupying more system resource(s) like cpu and memory
v) file system usage on server

hth.