Stan,
Date: Sat, 12 Dec 2009 17:20:00 -0600 you wrote,
> Yes, it's not sending or receiving any packets.
My expanation was unclear. The 0s come from ifconfig
after data transmission. Communication has always worked
for a non-zero time prior to failure. Presumeably ifconfig
reports cumulative bytes. This is a problem even before
the link freezes. Here is a better demonstration.
dalton:/home/peter# ping cantor
PING cantor.invalid (172.24.1.2) 56(84) bytes of data.
64 bytes from cantor.invalid (172.24.1.2): icmp_seq=1 ttl=32 time=1.18 ms
64 bytes from cantor.invalid (172.24.1.2): icmp_seq=2 ttl=32 time=2.23 ms
64 bytes from cantor.invalid (172.24.1.2): icmp_seq=3 ttl=32 time=1.51 ms
64 bytes from cantor.invalid (172.24.1.2): icmp_seq=4 ttl=32 time=1.39 ms
64 bytes from cantor.invalid (172.24.1.2): icmp_seq=5 ttl=32 time=2.51 ms
64 bytes from cantor.invalid (172.24.1.2): icmp_seq=6 ttl=32 time=2.51 ms
64 bytes from cantor.invalid (172.24.1.2): icmp_seq=7 ttl=32 time=3.38 ms
^C
--- cantor.invalid ping statistics ---
7 packets transmitted, 7 received, 0% packet loss, time 6010ms
rtt min/avg/max/mdev = 1.183/2.106/3.385/0.729 ms
dalton:/home/peter# ifconfig eth1
eth1 Link encap:Ethernet HWaddr 00:1d:7e:00:e5:da
inet addr:172.24.1.1 Bcast:172.24.1.255 Mask:255.255.255.0
inet6 addr: fe80::21d:7eff:fe00:e5da/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
> How many ethernet interfaces does the router
> have? What is the make/model of each interface?
One PCI card and two Linksys 200M USB-Ethernet adapters.
The troublesome interface is a Linksys 200M.
dalton:/home/peter# lspci
...
01:08.0 Ethernet controller: Intel Corporation 82801BA/BAM/CA/CAM Ethernet Contr
oller (rev 01)
...
dalton:/home/peter# lsusb
...
Bus 001 Device 003: ID 13b1:0018 Linksys USB200M 10/100 Ethernet Adapter
Bus 001 Device 002: ID 13b1:0018 Linksys USB200M 10/100 Ethernet Adapter
...
> Are you sure it's a software problem?
No but while the Linksys 200M operates intermittenly,
the driver should accumulate non-zero bytes.
> Have you swapped in a new crossover cable? Have you tried
> swapping the 'flaky' NIC out?
Good idea. Tomorrow Cantor can use the other
200M and cable.
Thanks, ... Peter E.
--
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