That all makes sense, but I think I have eliminated most of it. The
link from device A to device B is the primary link for this part of the
network to the Internet. It is carrying 2-way traffic just fine. That
would seem to indicate that all the hardware level stuff is OK. I have
looked at the interfaces, but I will do it again to be sure I have not
missed one, but since this plugs into a switch it should just be the one
port on the at fault unit and the switch.
The other part of the mystery is that this was working fine and then
just quit. As far as I know there were no changes to the network near
the time it quit finding neighbors.
Butch Evans wrote:
On Sat, 2010-08-14 at 17:15 -0400, Scott Reed wrote:
I have an RB433AH running ROS3.30. It has been running well for months
or longer. Yesterday afternoon it lost the OSPF routes that come in
from the backhaul interface. I rebooted. Still no go. It showed 9
potential neighbors in Init state on that interface. It gets neighbors
on the wireless AP interface. I power cycled it this morning. Same
thing, 9 neighbors in Init state.
On of those neighbors is inches away so I put a 3 foot jumper between
ether2 on the bad unit to ether2 on the good one. They instantly became
neighbors.
What do I need to look for on the interface that is not working to get
it to go to the next step?
By the way, that interface is the link to the Internet for 2 APs and all
of the customers on those 2 APs are moving traffic, so it is not a
physical interface that is not working.
Hopefully Jim Patient won't think this is "advertising", so I'll post it
here.
It is likely that you may be seeing a duplex mismatch at some point in
the network. Another possibility is that you have an incomplete bridge
somewhere (backhaul maybe?), such as would occur with an 802.11 based
client-ap setup. Without more information, it's hard to say what could
be causing this issue. State "init" means that we have seen the
hello(s) from the neighbor, but they have not seen ours. This indicates
some failure of packets in one direction, so I am guessing a duplex
problem.
--
Scott Reed
Sr. Systems Engineer
GAB Midwest
1-800-363-1544 x2241
1-260-827-2241
Cell: 260-273-7239
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