Re: OSPF external type-2 route load balance

From: ISolveSystems (support@isolvesystems.com)
Date: Fri Aug 31 2007 - 13:33:09 ART


Yes, they are both in the database. The metric are the same.

                Type-5 AS External Link States

Link ID ADV Router Age Seq# Checksum Tag
130.1.6.0 150.1.4.4 998 0x80000007 0x00FA8A 490
150.1.6.0 150.1.3.3 1574 0x80000001 0x00FFDD 390
150.1.6.0 150.1.4.4 1442 0x80000002 0x00FF76 490

On 8/31/07, Herbert Maosa <asawilunda@googlemail.com> wrote:
>
> Perhaps you should show the OSPF database on R5 to confirm that you are
> receiving these routes from both R4 and R3, then we take it from there to
> see why they are not being installed in the routing table.
>
> Keep in mind that OSPF performs only equal cost Load Balancing.
>
> Herbert.
>
>
> On 8/31/07, ISolveSystems <support@isolvesystems.com> wrote:
>
> > R5 connects to R3 via FR and connects to R4 via Eth. They are all in
> > area
> > 345.
> >
> > R3 and R4 redistribute EIGRP100 route into OSPF. R5 receives ospf route
> > 130.1.6.0 from both R3 and R4. Why are they not load balanced?
> >
> > By the way, 130.1.6.0 is a external route in EIGRP100.
> >
> >
> > ack1R5(config-if)# do sh ip route 130.1.6.6
> > Routing entry for 130.1.6.0/24
> > Known via "ospf 1", distance 110, metric 20
> > Tag 490, type extern 2, forward metric 64
> > Last update from 150.1.4.4 on Serial0/1/0, 00:00:08 ago
> > Routing Descriptor Blocks:
> > * 150.1.4.4, from 150.1.4.4, 00:00:08 ago, via Serial0/1/0
> > Route metric is 20, traffic share count is 1
> > Route tag 490
> >
> >
> >
> > Rack1R5(config-if)# do sh ip route 130.1.6.6
> > Routing entry for 130.1.6.0/24
> > Known via "ospf 1", distance 110, metric 20
> > Tag 390, type extern 2, forward metric 64
> > Last update from 130.1.35.3 on Serial0/0/0, 00:00:18 ago
> > Routing Descriptor Blocks:
> > * 130.1.35.3, from 150.1.3.3, 00:00:18 ago, via Serial0/0/0
> > Route metric is 20, traffic share count is 1
> > Route tag 390
> >
> > _______________________________________________________________________
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> >
>
>
>
> --
> Kindest regards,
> hm



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