From: Bajo (bajoalex@gmail.com)
Date: Fri Sep 22 2006 - 23:03:01 ART
Agree. Among other things such as stub type, authentication ...etc. But the
question was about SPF timers :)
On 9/22/06, Michael Zuo <mzuo@ixiacom.com> wrote:
>
> I think the Hello and Dead timers need to match on both side of the
> adjacency, as you can see from output below, OSPF adjacency did not come
> back up
>
> picasso(config-router)#do sh ip os nei
>
> Neighbor ID Pri State Dead Time Address
> Interface
> 20.1.1.1 1 FULL/DR 00:00:35 10.1.1.2
> Ethernet0/0
> picasso(config-router)#int e0/0
> picasso(config-if)#do sh ip os int e0/0
> Ethernet0/0 is up, line protocol is up
> Internet Address 10.1.1.1/24, Area 0
> Process ID 1, Router ID 10.1.1.1, Network Type BROADCAST, Cost: 10
> Transmit Delay is 1 sec, State BDR, Priority 1
> Designated Router (ID) 20.1.1.1, Interface address 10.1.1.2
> Backup Designated router (ID) 10.1.1.1, Interface address 10.1.1.1
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
> oob-resync timeout 40
> Hello due in 00:00:00
> Index 1/1, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 1, maximum is 1
> Last flood scan time is 0 msec, maximum is 0 msec
> Neighbor Count is 1, Adjacent neighbor count is 1
> Adjacent with neighbor 20.1.1.1 (Designated Router)
> Suppress hello for 0 neighbor(s)
> picasso(config-if)#ip os he 1
> picasso(config-if)#do clear ip os pro
> Reset ALL OSPF processes? [no]: y
> picasso(config-if)#
> 1w3d: %OSPF-5-ADJCHG: Process 1, Nbr 20.1.1.1 on Ethernet0/0 from FULL
> to DOWN,
> Neighbor Down: Interface down or detached
> picasso(config-if)#
> picasso(config-if)#
>
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Bajo
> Sent: Wednesday, September 20, 2006 7:06 PM
> To: Chris Broadway
> Cc: ccielab@groupstudy.com
> Subject: Re: OSPF SPF timers
>
> No.
>
> It is what an ospf router uses for its own SPF calculations when it
> receives
> topology changes. The value is not forwarded to a neighboring router.
> "show
> ip os" before and after the change on two neighboring routers show
> different
> values and still the adjacency is up.
>
>
>
> On 9/20/06, Chris Broadway <midatlanticnet@gmail.com> wrote:
> >
> > Group,
> >
> > If I adjust OSPF SPF timers on a router, do I have to adjust any other
> > routers in the network or in the area? I looked on the DOC but did
> not
> > find
> > any "implementation considerations".
> >
> > -Broadway
> >
> >
> _______________________________________________________________________
> > Subscription information may be found at:
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> >
>
>
>
> --
> Kind Regards,
>
> Bajo
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
-- Kind Regards,Bajo
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