Brian Utterback wrote: > Sounds like a job for Dtrace. You should be able to use the > fbt provider to find out where the packets go and who in the > kernel drops them. Although my bet would be on IP filtering, > since all of those packets are handled in the IP kernel > module itself, and it seems unlikely that something could > block only one or two type of traffic like that within > the module. Same for the hardware you mentioned, the only > difference between a TCP packet and a UDP packet is a couple > of bits in the header, so it couldn't be a bad cable for > instance. > > Also check for another device on the network using the same IP address?
The behavior sounds very similiar to what I experienced a while back when 2 devices had the same IP. -Kyle > Martin Gasthuber wrote: > >> Hi, >> >> one of our X4500 running snv79 stops sending/receiving all other packets >> except TCP every few 10 minutes for about 10 to 20 minutes. Live TCP >> sessions (i.e. ssh login) continue to work, but all DNS + ping +... hangs >> (from in to out and vice versa). We checked this behaviour with an explicit >> port monitor on the switch side (Cisco). Meanwhile i stopped nearly all >> processes/daemons not really needed, the cabling from switch to host has >> been testet/replaced, the switchport ha been changed, we upgrage from snv55 >> to snv79 - all this makes no change ! Any other idea what we can look for ??? >> >> Thanks, >> Martin >> >> >> This message posted from opensolaris.org >> _______________________________________________ >> networking-discuss mailing list >> [email protected] >> > > _______________________________________________ networking-discuss mailing list [email protected]
