On (04/25/10 12:06), Piotr Jasiukajtis wrote:
> ifconfig flags:
> <UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER>
> 
> ping doesn't work

When you say "ping doesn't work", what does snoop display? Do you see
arp requests for the ping target? Are these received by the actual
ping target?  Or do you see icmp echo requests? (and if yes, are these
echo requests actually received by the ping target?)

> snoop says that igb1 (broken interface) is sending out ARP packets
> (who is) and  SYN / RST packets. No other communication from the
> outside.
> 
> Yes, I am running link-based failure detection. The idea is to enable
> probe detection in the future but not right now.

It's hard to tell without more data, but my first suggestion would
be to make sure that both igb1 and the switch port that it is connected
to both concur on state.  Can you check the "dladm show-ether -x" status
of the port?

> It could be tricky to disable all interfaces to use dtrace probes
> however I am able to create live dump of the system.

I'll try to put together some dtrace probes for you later..

--Sowmini

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