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Hi,
Multilink interface adopts bandwith from its member interfaces so it changes bandwith according to the state of member interface UP/Down. So I think OSPF will run SPF if any of the member link goes down to calculate new cost.

Regards,
Mujeeb
On Wed, Jan 7, 2009 at 10:01 PM, wrote:
> I wouldn’t think ospf would run spf calculation if only one of the mlppp > members went down. The bandwidth variable isn’t going to change on the > multilink interface when a member drops, thus ospf shouldn’t recalculate. > > Ron > —–Original Message—– > From: “Rajakumar Ramasamy” > > Date: Wed, 7 Jan 2009 10:45:15 > To: Cisco certification > Subject: MLPP - OSPF SPF Calculation > > > Hello, > > > > I would like to know, does OSPF run SPF calculation if one of the link in > the MLPP bundle fails or all the links should be failed for OSPF run the > SPF. > > > > My assumption is MLPP should be down (meaning all the links in the bundle > should be down) for OSPF to re-run the SPF calculation. > > > > If you know any cisco documentaion regarding this please send the URL. > > > > Thanks you , > > Raja > > CCIE # 21437 > > > Blogs and organic groups at http://www.ccie.net > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html > > > Blogs and organic groups at http://www.ccie.net > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
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