[OLSR-users] OLSR Network Dying
Andrew Hodel
(spam-protected)
Tue Jun 28 23:21:51 CEST 2005
In our network with 27 nodes, the network will simply die.
Interesting is that olsr continues to run on each node, and each node
is recieving packets from all other nodes. Every node shows every
other node in the topology and all routes are in place. Whenever I
try to do anything over the network however, ping tcp whatever,
nothing works.
this shows a little of what is going on:
mnode1:~# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.55.36.231 * 255.255.255.255 UH 1 0 0 wlan0
10.56.10.192 * 255.255.255.255 UH 1 0 0 wlan0
10.56.6.230 10.55.36.232 255.255.255.255 UGH 3 0 0 wlan0
10.56.10.197 * 255.255.255.255 UH 1 0 0 wlan0
10.56.10.213 10.55.36.232 255.255.255.255 UGH 2 0 0 wlan0
10.56.10.202 * 255.255.255.255 UH 1 0 0 wlan0
10.54.158.118 * 255.255.255.255 UH 1 0 0 wlan0
10.55.36.239 10.56.10.197 255.255.255.255 UGH 2 0 0 wlan0
10.55.38.11 * 255.255.255.255 UH 1 0 0 wlan0
10.54.158.130 * 255.255.255.255 UH 1 0 0 wlan0
10.56.10.217 * 255.255.255.255 UH 1 0 0 wlan0
10.56.10.206 * 255.255.255.255 UH 1 0 0 wlan0
10.56.10.223 10.56.10.197 255.255.255.255 UGH 2 0 0 wlan0
10.55.36.235 * 255.255.255.255 UH 1 0 0 wlan0
10.1.1.1 * 255.255.255.255 UH 1 0 0 wlan0
10.56.10.191 10.56.10.202 255.255.255.255 UGH 2 0 0 wlan0
10.55.36.232 * 255.255.255.255 UH 1 0 0 wlan0
10.56.10.190 10.55.36.232 255.255.255.255 UGH 3 0 0 wlan0
10.54.158.0 * 255.255.255.0 U 0 0 0 wlan0
63.98.170.0 * 255.255.255.0 U 0 0 0 eth0
default 63.98.170.1 0.0.0.0 UG 0 0 0 eth0
mnode1:~# ping 10.55.36.231
PING 10.55.36.231 (10.55.36.231): 56 data bytes
--- 10.55.36.231 ping statistics ---
5 packets transmitted, 0 packets received, 100% packet loss
mnode1:~# ping 10.56.10.192
PING 10.56.10.192 (10.56.10.192): 56 data bytes
--- 10.56.10.192 ping statistics ---
6 packets transmitted, 0 packets received, 100% packet loss
mnode1:~# ping 10.56.6.230
PING 10.56.6.230 (10.56.6.230): 56 data bytes
--- 10.56.6.230 ping statistics ---
4 packets transmitted, 0 packets received, 100% packet loss
mnode1:~# tcpdump
tcpdump: listening on wlan0
02:41:16.804416 10.54.158.118.698 > 255.255.255.255.698: udp 60 (DF) [tos 0x10]
02:41:16.892218 10.55.36.231.698 > 255.255.255.255.698: udp 244 (DF) [tos 0x10]
02:41:16.913193 10.55.38.11.698 > 255.255.255.255.698: udp 176 (DF) [tos 0x10]
02:41:16.982413 10.55.36.232.698 > 255.255.255.255.698: udp 148 (DF) [tos 0x10]
02:41:17.022859 10.54.158.130.698 > 255.255.255.255.698: udp 52 (DF) [tos 0x10]
02:41:17.063983 10.56.10.197.698 > 255.255.255.255.698: udp 108 (DF) [tos 0x10]
02:41:17.211784 10.55.38.11.698 > 255.255.255.255.698: udp 60 (DF) [tos 0x10]
02:41:17.384050 10.54.158.131.698 > 255.255.255.255.698: udp 60 (DF) [tos 0x10]
02:41:17.453067 10.56.10.217.698 > 255.255.255.255.698: udp 212 (DF) [tos 0x10]
02:41:17.521810 10.55.36.232.698 > 255.255.255.255.698: udp 60 (DF) [tos 0x10]
02:41:17.525359 10.54.158.118.698 > 255.255.255.255.698: udp 80 (DF) [tos 0x10]
02:41:17.611618 10.55.36.231.698 > 255.255.255.255.698: udp 60 (DF) [tos 0x10]
02:41:17.652531 10.55.36.232.698 > 255.255.255.255.698: udp 120 (DF) [tos 0x10]
02:41:17.696895 10.55.38.11.698 > 255.255.255.255.698: udp 100 (DF) [tos 0x10]
02:41:17.845363 10.55.36.235.698 > 255.255.255.255.698: udp 76 (DF) [tos 0x10]
02:41:17.984028 10.54.158.131.698 > 255.255.255.255.698: udp 240 (DF)
[tos 0x10]
02:41:18.095597 10.55.36.231.698 > 255.255.255.255.698: udp 44 (DF) [tos 0x10]
02:41:18.099165 10.56.10.197.698 > 255.255.255.255.698: udp 216 (DF) [tos 0x10]
02:41:18.120339 10.1.1.1.698 > 255.255.255.255.698: udp 32 (DF) [tos 0x10]
02:41:18.129635 10.54.158.118.698 > 255.255.255.255.698: udp 216 (DF)
[tos 0x10]
02:41:18.172700 10.55.38.11.698 > 255.255.255.255.698: udp 256 (DF) [tos 0x10]
02:41:18.253967 10.55.36.232.698 > 255.255.255.255.698: udp 256 (DF) [tos 0x10]
02:41:18.394954 10.56.10.223.698 > 255.255.255.255.698: udp 44 (DF) [tos 0x10]
02:41:18.464166 10.54.158.131.698 > 255.255.255.255.698: udp 116 (DF)
[tos 0x10]
02:41:18.505899 arp who-has 10.0.0.233 tell 10.1.1.1
02:41:18.538160 10.56.10.202.698 > 255.255.255.255.698: udp 44 (DF) [tos 0x10]
02:41:18.666830 10.56.10.217.698 > 255.255.255.255.698: udp 100 (DF) [tos 0x10]
02:41:18.700196 10.56.10.223.698 > 255.255.255.255.698: udp 152 (DF) [tos 0x10]
28 packets received by filter
0 packets dropped by kernel
mnode1:~#
If I shutdown every node, then bring them up 1 by 1, it will work for
a while then eventually crash.
Any ideas on how to fix this, or what is causing it?
Andrew
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