From: Herbert Maosa (asawilunda@googlemail.com)
Date: Mon Jan 07 2008 - 04:28:59 ARST
Eric = Scott. Too early.
Herbert.
On Jan 7, 2008 6:28 AM, Herbert Maosa <asawilunda@googlemail.com> wrote:
> Right Eric, this makes sense now. Thanks all.
>
> Herbert.
>
>
>
> On Jan 7, 2008 6:25 AM, Scott Vermillion <scott_ccie_list@it-ag.com>
> wrote:
>
> > Hi Herbert,
> >
> >
> > I think you're correct. If you just do 'sh ip eig top' you will not see
> > non-feasible successors unless you use the 'all-links' keyword. However,
> > you displayed the topology for a specific prefix, which give you
everything
> > the router's got for it. Sorry, I didn't realize exactly where the
> > confusion was
> >
> >
> > Regards,
> >
> > Scott
> >
> >
> >
> >
> >
> > *From:* Herbert Maosa [mailto:asawilunda@googlemail.com]
> > *Sent:* Sunday, January 06, 2008 11:21 PM
> > *To:* Scott Vermillion
> > *Cc:* Eric Leung; Cisco certification
> >
> > *Subject:* Re: EIGRP Feasibility Condition
> >
> >
> >
> > Perhaps let me re-phrase the question. Should that route be visible
> > through *show ip eigrp topology ? *I definitely agree it will be in
> > the topology table as it is being learnt, but I believed until it passes
the
> > feasibility condition it should not be listed by way of this command as
this
> > command supposedly lists only feasible successors and successors.
> >
> > Herbert.
> >
> > On Jan 7, 2008 6:17 AM, Scott Vermillion <scott_ccie_list@it-ag.com>
> > wrote:
> >
> > Hey Eric,
> >
> > Looking at the addressing scheme and the delay values (as well as a few
> > fields in the topology table entries), it looks like R5 connects to R4
> > directly via Fast-E and also via FR hub-and-spoke cloud, with R1 being
> > the
> > hub. R5 is redistributing this external network learned via RIP from a
> > BB.
> > R1 is advertising its route via the FR could on down to R4, which
> > happens to
> > have a much better metric via the Fast-E connectivity. Both paths are
> > supposed to be in the topology table - just not the routing table. In
> > fact,
> > if we looked at the R1 topology table, it would show two paths as well,
> > and
> > the path via R4 and on up to R5 via Fast-E would also not meet the
> > feasibility condition but would nevertheless still be in the topology
> > table
> > of R1.
> >
> > Regards,
> >
> > Scott
> >
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > Eric
> > Leung
> > Sent: Sunday, January 06, 2008 11:01 PM
> > To: Herbert Maosa
> > Cc: Cisco certification
> > Subject: Re: EIGRP Feasibility Condition
> >
> > Hi Herbert,
> >
> > would you mind post the configuration?
> >
> > eric.
> >
> > 2008/1/7, Herbert Maosa < asawilunda@googlemail.com>:
> > >
> > > It could be very early in the morning and I probably am missing
> > something
> > > fundamental here. Look at the output below. Shouldn't the highlighted
> > path
> > > be excluded from the EIGRP topology table based on failing the
> > feasibility
> > > condition according to the current feasible distance ?
> > >
> > >
> > > sh ip eigrp topo 222.22.2.0
> > > IP-EIGRP (AS 1024): Topology entry for 222.22.2.0/24
> > > State is Passive, Query origin flag is 1, 1 Successor(s), FD is
> > 30720
> > > Routing Descriptor Blocks:
> > > 174.1.45.5 (FastEthernet0/1), from 174.1.45.5, Send flag is 0x0
> > > Composite metric is (30720/28160), Route is External
> > > Vector metric:
> > > Minimum bandwidth is 100000 Kbit
> > > Total delay is 200 microseconds
> > > Reliability is 255/255
> > > Load is 1/255
> > > Minimum MTU is 1500
> > > Hop count is 1
> > > External data:
> > > Originating router is 150.1.5.5
> > > AS number of route is 0
> > > External protocol is RIP, external metric is 7
> > > Administrator tag is 0 (0x00000000)
> > > * 174.1.145.1 (Serial0/0/0), from 174.1.145.1, Send flag is 0x0
> > > Composite metric is (2684416/2172416), Route is External*
> > > Vector metric:
> > > Minimum bandwidth is 1544 Kbit
> > > Total delay is 40100 microseconds
> > > Reliability is 255/255
> > > Load is 1/255
> > > Minimum MTU is 1500
> > > Hop count is 2
> > > External data:
> > > Originating router is 150.1.5.5
> > > AS number of route is 0
> > > External protocol is RIP, external metric is 7
> > > Administrator tag is 0 (0x00000000)
> > >
> > > Herbert.
> > >
> > >
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