On Thu, Sep 10, 2009 at 2:55 AM, Rens <r...@autempspourmoi.be> wrote:
> All the interfaces are forced to 1Gbps and full duplex. > > Maybe I should give some extra info. > All the traffic seems to pass ok via that link but I have seen that often > OSPF adjacencies go down/up , I suspect that the HELLO packets are being > dropped that pass via that link. > > That's why I started to look a little deeper and do some ping tests. > > -----Original Message----- > From: Adam Goodman [mailto:a...@wispring.com] > Sent: jeudi 10 septembre 2009 11:45 > To: Rens > Cc: <nanog@nanog.org> > Subject: Re: Wireless STM-1 link > > Sounds like this might be an Ethernet negotiaton problem > > -------- > Sent from my phone > Seems everyone has focused on GE as the problem. You can quickly rule that out by looking at interface error counters and doing PING tests from the wireless router/device to something on the local network on both sides. If OSPF is flapping because of missed HELLO packets then I'm thinking you have a problem with either saturation on the link or actual wireless issues. When PING does work what do the times look like? I'd look at static routing for a bit (if practical) or changing your OSPF HELLO intervals to see if that does anything. Here's a good link on troubleshooting OSPF adjacency changes: http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094050.shtml
