On Wed, Mar 12, 2008 at 11:31:22PM -0400, Jason Berenson wrote:
We have 3 7206's used as edge routers. PA-MC-T3 in from our DAX and
ethernet out to our transport. So there are a few adjacencies along
with iBGP and eBGP. It seems like the router that goes down (flaps
OSPF/BGP instance 1)
No.
Good idea to just turn off logging to the console via
no logg con
Rodney
On Wed, Mar 12, 2008 at 05:35:12PM -0400, Jason Berenson wrote:
Rodney,
They connect back to a cisco switch. No errors anywhere along the
ethernet and no packet loss. It also only flapped 3 times yesterday and
Look for intput drops on the 'sh int'.
If you don't see any you probably need a sniffer trace on the
ethernet segment.
On Tue, Mar 11, 2008 at 03:53:30PM -0400, Jason Berenson wrote:
Greetings,
We have a few 7206's running OSPF/BGP for routing. All of the routers
are fine except for one -
Rodney,
The interface is clean. No errors/drops at all. I think I'll have to
snoop that segment like you suggested and wait for it to flap again.
Thanks,
Jason
Rodney Dunn wrote:
Look for intput drops on the 'sh int'.
If you don't see any you probably need a sniffer trace on the
If OSPF is flapping, you should see it on the neighbor attached to that
interface as well, so you might look there for issues.
Joe
On 3/12/08, Jason Berenson [EMAIL PROTECTED] wrote:
Rodney,
The interface is clean. No errors/drops at all. I think I'll have to
snoop that segment like you
Joe,
I checked the neighbors too. I do see the session flap there but again,
no errors on the ethernet and nothing really obvious as to why it
flapped. This just started in the past few days. I do see some CPU
spikes to 100% but it doesn't correlate exactly to when the flap occurred.
What is the physical topology?
Is it back to back ethernet?
On Wed, Mar 12, 2008 at 11:37:42AM -0400, Jason Berenson wrote:
Joe,
I checked the neighbors too. I do see the session flap there but again,
no errors on the ethernet and nothing really obvious as to why it
flapped. This just
Rodney,
They connect back to a cisco switch. No errors anywhere along the
ethernet and no packet loss. It also only flapped 3 times yesterday and
2 times 5 days ago, so it's not a constant flap.
It hasn't flapped yet today, so I'll turn on debugging and setup a snoop
and write back when I
Are any other hosts affected off the switch during this period aswell?
Ben
On 13/03/2008, at 8:05 AM, Jason Berenson wrote:
Rodney,
They connect back to a cisco switch. No errors anywhere along the
ethernet and no packet loss. It also only flapped 3 times yesterday
and
2 times 5 days
Ben,
We have 3 7206's used as edge routers. PA-MC-T3 in from our DAX and
ethernet out to our transport. So there are a few adjacencies along
with iBGP and eBGP. It seems like the router that goes down (flaps
OSPF/BGP instance 1) is the only one that takes a hit out of all of them
connected
Going by the fact you see nothing obvious in the logs on the routers I
was just curious to see whether it may be something on the switch like
someone randomly plugging in a cable or interface that is causing a
brief SPT loop or other various layer 2 issue, nothing in the switch
logs I
Greetings,
We have a few 7206's running OSPF/BGP for routing. All of the routers
are fine except for one - I noticed a few times in the past week where
OSPF/BGP flapped and came back right away.
I checked CPU and noticed it peaked in the past hour but that doesn't
really correlate to the
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