[quagga-dev 7313] Re: VLANs and Timers bug ?

Milan Kocian milon at wq.cz
Fri Oct 30 09:04:10 GMT 2009


On Wed, Oct 28, 2009 at 11:26:58PM +0100, Ingo Flaschberger wrote:
> Dear Milan,
> 
> sounds like a multicast bug.
> check if multicast (224.0.0.5 / 224.0.0.6) enter and leave the router and
> is also seen at other routers.
> 
> check ospf helo timers:
> show ip ospf neighbor
> 
> Kind regards,
> 	ingo flaschberger
> 

Hello,

thanks for the answer and the hint. Multicast seems ok (for me).

# netstat -gn
IPv6/IPv4 Group Memberships
Interface       RefCnt Group
--------------- ------ ---------------------
lo              1      224.0.0.1
eth0            1      224.0.0.1
eth0.171        1      224.0.0.6
eth0.171        1      224.0.0.5
eth0.171        1      224.0.0.1
lo              1      ff02::1
eth0            1      ff02::1:ff1b:5998
eth0            1      ff02::1
eth0.171        1      ff02::1:ff1b:5998
eth0.171        1      ff02::1

Then I tried to check command 'show ip ospf neighbor' and
I see decrementing till zero and then jump to start value. 

ospfd# show ip ospf neighbor

    Neighbor ID Pri State           Dead Time Address         Interface            RXmtL RqstL DBsmL
172.24.114.2      5 Full/DR           48.321s 172.24.118.97   eth0.171:172.24.118.98     1     0     0
ospfd# show ip ospf neighbor

    Neighbor ID Pri State           Dead Time Address         Interface            RXmtL RqstL DBsmL
172.24.114.2      5 Full/DR           21.758s 172.24.118.97   eth0.171:172.24.118.98     0     0     0
ospfd# show ip ospf neighbor

    Neighbor ID Pri State           Dead Time Address         Interface            RXmtL RqstL DBsmL
172.24.114.2      5 Full/DR            0.639s 172.24.118.97   eth0.171:172.24.118.98     0     0     0
ospfd# show ip ospf neighbor

    Neighbor ID Pri State           Dead Time Address         Interface            RXmtL RqstL DBsmL
172.24.114.2      5 Full/DR           58.860s 172.24.118.97   eth0.171:172.24.118.98     0     0     0

I still don't know  where may be problem ? Kernel or quagga ?
Is anyone using vlans ? 

I will try newer kernel.

Regards,

-- 
Milan Kocian



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