Hi, Have previously installed Linux (2.2.13) on a SUN Ultra 5 333Mhz with two Quad NICs. I have a problem with network delays, even with crossover cables. A simple ping from another host looks like this,
---////--- [helios]$ ping -s bussola PING bussola.tb.su.se: 56 data bytes 64 bytes from bussola (172.16.0.248): icmp_seq=0. time=2. ms 64 bytes from bussola (172.16.0.248): icmp_seq=1. time=245. ms 64 bytes from bussola (172.16.0.248): icmp_seq=2. time=1. ms 64 bytes from bussola (172.16.0.248): icmp_seq=3. time=1001. ms 64 bytes from bussola (172.16.0.248): icmp_seq=4. time=1. ms 64 bytes from bussola (172.16.0.248): icmp_seq=5. time=177. ms 64 bytes from bussola (172.16.0.248): icmp_seq=6. time=1001. ms 64 bytes from bussola (172.16.0.248): icmp_seq=7. time=1. ms 64 bytes from bussola (172.16.0.248): icmp_seq=8. time=485. ms 64 bytes from bussola (172.16.0.248): icmp_seq=9. time=6. ms 64 bytes from bussola (172.16.0.248): icmp_seq=10. time=676. ms 64 bytes from bussola (172.16.0.248): icmp_seq=11. time=1. ms ^C ----bussola.tb.su.se PING Statistics---- 12 packets transmitted, 12 packets received, 0% packet loss round-trip (ms) min/avg/max = 1/299/1001 [helios]$ ---////--- It's the same pattern from every host I try from and the peek is almost always at 1001.1 ms or 1001.2 ms, but not when I ping simultaneously from another host. ---////--- [helios]$ ping -s bussola PING bussola.tb.su.se: 56 data bytes 64 bytes from bussola (172.16.0.248): icmp_seq=0. time=2. ms 64 bytes from bussola (172.16.0.248): icmp_seq=1. time=1. ms 64 bytes from bussola (172.16.0.248): icmp_seq=2. time=1. ms 64 bytes from bussola (172.16.0.248): icmp_seq=3. time=1. ms 64 bytes from bussola (172.16.0.248): icmp_seq=4. time=1. ms 64 bytes from bussola (172.16.0.248): icmp_seq=5. time=115. ms 64 bytes from bussola (172.16.0.248): icmp_seq=6. time=1. ms 64 bytes from bussola (172.16.0.248): icmp_seq=7. time=1. ms 64 bytes from bussola (172.16.0.248): icmp_seq=8. time=1. ms 64 bytes from bussola (172.16.0.248): icmp_seq=9. time=28. ms 64 bytes from bussola (172.16.0.248): icmp_seq=10. time=1. ms ^C ----bussola.tb.su.se PING Statistics---- 11 packets transmitted, 11 packets received, 0% packet loss round-trip (ms) min/avg/max = 1/13/115 [helios]$ ---////--- Note the difference in response when pinging from two hosts simultaneously. Anyone have any ideas? Sincerely, Rickard Rickard Cedergren ([EMAIL PROTECTED]) Dep. of IT-Security @ STOCKHOLM UNIVERSITY http://www.it-sakerhet.tb.su.se Phone: +46-8-161068 Fax: +46-8-163980