Merkwuerdiges Netzverhalten?

[Dirk Westfal]

Hallo! 

Kann mir jemand sagen was hier los ist?
Seit letzter Woche haben wir immer wieder das Problem, dass es 
"Verstopfungen" wie unten beschrieben im Netz gibt. 

In der Kiste stecken zwei 3com 905 Karten. 

Danke fuer eure Hilfe!

dirk


Mitschnitt:
PING 192.168.3.1 (192.168.3.1) from 192.168.3.1 : 56(84) bytes of data.
64 bytes from brick1.wall (192.168.3.1): icmp_seq=0 ttl=255 time=0.1 ms
64 bytes from brick1.wall (192.168.3.1): icmp_seq=1 ttl=255 time=0.0 ms

--- 192.168.3.1 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 0.0/0.0/0.1 ms
[admin at fw-1 /adm]$ ping 192.168.3.2
PING 192.168.3.2 (192.168.3.2) from 192.168.3.1 : 56(84) bytes of data.
64 bytes from 192.168.3.2: icmp_seq=0 ttl=255 time=0.3 ms
64 bytes from 192.168.3.2: icmp_seq=1 ttl=255 time=15494.6 ms
64 bytes from 192.168.3.2: icmp_seq=2 ttl=255 time=14495.1 ms
64 bytes from 192.168.3.2: icmp_seq=3 ttl=255 time=13495.4 ms
64 bytes from 192.168.3.2: icmp_seq=4 ttl=255 time=12495.7 ms
64 bytes from 192.168.3.2: icmp_seq=5 ttl=255 time=11496.0 ms
64 bytes from 192.168.3.2: icmp_seq=6 ttl=255 time=10496.3 ms
64 bytes from 192.168.3.2: icmp_seq=7 ttl=255 time=9496.6 ms
64 bytes from 192.168.3.2: icmp_seq=8 ttl=255 time=8496.9 ms
64 bytes from 192.168.3.2: icmp_seq=9 ttl=255 time=7497.2 ms
64 bytes from 192.168.3.2: icmp_seq=10 ttl=255 time=6497.5 ms
64 bytes from 192.168.3.2: icmp_seq=11 ttl=255 time=5497.8 ms
64 bytes from 192.168.3.2: icmp_seq=12 ttl=255 time=4498.1 ms
64 bytes from 192.168.3.2: icmp_seq=13 ttl=255 time=3498.4 ms
64 bytes from 192.168.3.2: icmp_seq=14 ttl=255 time=2498.7 ms
64 bytes from 192.168.3.2: icmp_seq=15 ttl=255 time=1499.0 ms
64 bytes from 192.168.3.2: icmp_seq=16 ttl=255 time=499.3 ms
64 bytes from 192.168.3.2: icmp_seq=17 ttl=255 time=0.1 ms
64 bytes from 192.168.3.2: icmp_seq=18 ttl=255 time=0.1 ms

--- 192.168.3.2 ping statistics ---
19 packets transmitted, 19 packets received, 0% packet loss
round-trip min/avg/max = 0.1/6734.3/15494.6 ms
[admin at fw-1 /adm]$
[admin at fw-1 /adm]$ ping 192.168.3.2
PING 192.168.3.2 (192.168.3.2) from 192.168.3.1 : 56(84) bytes of data.
64 bytes from 192.168.3.2: icmp_seq=0 ttl=255 time=0.3 ms
64 bytes from 192.168.3.2: icmp_seq=1 ttl=255 time=0.2 ms
64 bytes from 192.168.3.2: icmp_seq=2 ttl=255 time=0.1 ms
--- 192.168.3.2 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.1/0.2/0.3 ms