In my SLES8, in a Pentium III 850 Mhz with 256 Mb in RAM, 3 Ethernet with a lot of IP and have No buffer space available and some disconnecting in the more day traffic.

In the /var/log/messages i have some like this:

Jul 28 17:01:31 servidor named[882]: client 192.168.9.99#2079: error sending response: not enough free resources Jul 28 17:01:32 servidor dhcpd: DHCPINFORM from 192.168.0.12 via eth0 Jul 28 17:01:32 servidor dhcpd: DHCPACK to 192.168.0.12 Jul 28 17:01:32 servidor kernel: NET: 8 messages suppressed. Jul 28 17:01:32 servidor kernel: Neighbour table overflow. Jul 28 17:01:37 servidor kernel: NET: 5 messages suppressed. Jul 28 17:01:37 servidor kernel: Neighbour table overflow. Jul 28 17:01:42 servidor kernel: NET: 7 messages suppressed. Jul 28 17:01:42 servidor kernel: Neighbour table overflow. Jul 28 17:01:44 servidor named[882]: client 192.168.9.99#2080: error sending response: not enough free resources Jul 28 17:01:47 servidor kernel: NET: 4 messages suppressed. Jul 28 17:01:47 servidor kernel: Neighbour table overflow. Jul 28 17:01:51 servidor kernel: NET: 6 messages suppressed. Jul 28 17:01:51 servidor kernel: Neighbour table overflow. Jul 28 17:01:58 servidor kernel: NET: 9 messages suppressed. Jul 28 17:01:58 servidor kernel: Neighbour table overflow. Jul 28 17:01:59 servidor named[882]: client 192.168.0.2#4727: error sending response: not enough free resources Jul 28 17:02:03 servidor kernel: NET: 7 messages suppressed.

I can't ping. I need to restart the net but the system has the problem again in few minutes. If is a weekend or night, (less people working), I don't have problem.

The network configuration is this:

eth0 Link encap:Ethernet HWaddr 00:07:95:20:37:3E inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::207:95ff:fe20:373e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:462029 errors:0 dropped:0 overruns:0 frame:0 TX packets:178732 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:79051254 (75.3 Mb) TX bytes:135463803 (129.1 Mb) Interrupt:10 Base address:0xde00

eth0:1 Link encap:Ethernet HWaddr 00:07:95:20:37:3E inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:10 Base address:0xde00

eth0:2 Link encap:Ethernet HWaddr 00:07:95:20:37:3E inet addr:192.168.7.1 Bcast:192.168.7.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:10 Base address:0xde00

eth0:3 Link encap:Ethernet HWaddr 00:07:95:20:37:3E inet addr:192.168.10.1 Bcast:192.168.10.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:10 Base address:0xde00

eth1 Link encap:Ethernet HWaddr 52:54:05:FD:01:89 inet addr:201.243.29.58 Bcast:201.243.31.255 Mask:255.255.248.0 inet6 addr: fe80::5054:5ff:fefd:189/64 Scope:Link UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1 RX packets:167334 errors:0 dropped:0 overruns:0 frame:0 TX packets:417013 errors:0 dropped:0 overruns:0 carrier:0 collisions:171 txqueuelen:100 RX bytes:114852824 (109.5 Mb) TX bytes:45133028 (43.0 Mb) Interrupt:11 Base address:0xdd80

eth2 Link encap:Ethernet HWaddr 52:54:05:FC:F9:BC inet addr:192.168.2.1 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::5054:5ff:fefc:f9bc/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:51171 errors:0 dropped:0 overruns:0 frame:1971 TX packets:55123 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:8166347 (7.7 Mb) TX bytes:34574628 (32.9 Mb) Interrupt:9 Base address:0xdd00

eth2:1 Link encap:Ethernet HWaddr 52:54:05:FC:F9:BC inet addr:192.168.3.1 Bcast:192.168.3.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:9 Base address:0xdd00

eth2:2 Link encap:Ethernet HWaddr 52:54:05:FC:F9:BC inet addr:192.168.4.1 Bcast:192.168.4.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:9 Base address:0xdd00

eth2:3 Link encap:Ethernet HWaddr 52:54:05:FC:F9:BC inet addr:192.168.5.1 Bcast:192.168.5.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:9 Base address:0xdd00

eth2:4 Link encap:Ethernet HWaddr 52:54:05:FC:F9:BC inet addr:192.168.6.1 Bcast:192.168.6.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:9 Base address:0xdd00

eth2:5 Link encap:Ethernet HWaddr 52:54:05:FC:F9:BC inet addr:192.168.8.1 Bcast:192.168.8.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:9 Base address:0xdd00

eth2:6 Link encap:Ethernet HWaddr 52:54:05:FC:F9:BC inet addr:192.168.9.1 Bcast:192.168.9.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:9 Base address:0xdd00

eth2:7 Link encap:Ethernet HWaddr 52:54:05:FC:F9:BC inet addr:192.168.11.1 Bcast:192.168.11.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:9 Base address:0xdd00

eth2:8 Link encap:Ethernet HWaddr 52:54:05:FC:F9:BC inet addr:192.168.12.1 Bcast:192.168.12.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:9 Base address:0xdd00

lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:35808 errors:0 dropped:0 overruns:0 frame:0 TX packets:35808 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:3104782 (2.9 Mb) TX bytes:3104782 (2.9 Mb)

The lo is good. I was cheking in Suse Support and speak about it.

The free is:

servidor:/var/log # free total used free shared buffers cached Mem: 253784 247456 6328 0 20432 59144 -/+ buffers/cache: 167880 85904 Swap: 955780 40596 915184

In the day is a big problem!!!

Any ideas? -- ------------------------------------------------------ Una prensa libre es el gran enemigo de los dictadores. Independientemente de sus abusos, sus debilidades, sus errores. Una prensa libre es la gran aliada y defensora de la democracia. Charlos S. Shapiro Embajador de USA en la Rep. de Venezuela Martes, 20 de Mayo 2003