[quagga-dev 7317] Re: VLANs and Timers bug ?

Milan Kocian milon at wq.cz
Sat Oct 31 18:05:56 GMT 2009


hello,

On Fri, Oct 30, 2009 at 03:23:06PM +0100, Unknown wrote:
> Yeah, im using VLANs and everything works like a charm.
> Drop FW for a while and check if its works?

Thanks for answer. Firewall was disabled in test. The ospf daemon get
the hello packet and adjacency is formed. But then the next hello packets are
lost somewhere. But via tcpdump I see that hello packets are incomming
continually.

> 
> ---------- Original message ----------
> 
> From: Milan Kocian <milon at wq.cz>
> To: Ingo Flaschberger <if at xip.at>
> Cc: quagga-dev at lists.quagga.net
> Subject: [quagga-dev 7313] Re: VLANs and Timers bug ?
> Date: Fri, 30 Oct 2009 10:04:10 +0100
> Message-ID: <20091030090410.GA18577 at ntm.vs.lam.cz>
> 
> 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

Regards,

-- 
Milan Kocian



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