Network slow netstat -r very slow output

[Alan Casey]

I have a network problem with an A500 and 1 network card.

100 Mb/s Ethernet.
Broadcast is a.b.255.255
I am a.b.c.d

For some reason the network connection is slow from some ipaddresses within the subnet but not others.

The output of netstat -r is VERY slow.
Any ideas?

[Alan Casey]

One extra thing:
arp -a is VERY slow
arp -an is NOT slow????

[Vincent Stedema]

Hi,

This could be a name resolving issue.

Have you tried using "netstat -rn"? This will prevent name lookup for the displayed ip adresses.

Regards,

Vincent

[Robin Wakefield · Accepted solution]

Hi Alan,

From the symptoms you describe, I would suspect "netstat -rn" should also be quick compared to "netstat -r". This would indicate hostname resolution problems, i.e. DNS not working properly?

Rgds, Robin

[Steve Steel]

Hi


Check

/etc/resolv.conf /etc/nsswitch.conf

Do you have something like NIS in nsswitch.conf while you are not using it.


Steve Steel

[Alan Casey]

Thanks guys,

The problem was with DNS server.
I removed dns from nsswitch.conf and problem solved.