From: Joel Amao (femmy79@hotmail.com)
Date: Wed Feb 06 2008 - 13:14:10 ARST
Same AD but different metric ...Thats why.
In your output below:
static -0
ospf-2
Joel Amao
CCIE#18128 > From: joe@affirmedsystems.com> To: cc13lab@gmail.com> CC:
ccielab@groupstudy.com> Subject: RE: Route preference> Date: Tue, 5 Feb 2008
12:00:46 -0500> > >So, if a router is learning 192.168.1.0/24 through ospf and
there is a> static route for 192.168.1.0/24 with AD of 110. Thank you in
advance.> > > > Read this part. both routes have an AD of 110.> > > > So here
goes,> > > > I lab'd it up.> > > > rack1r1#sh ip route ospf> > 1.0.0.0/8 is
variably subnetted, 2 subnets, 2 masks> > O 1.1.13.0/24 [110/2] via
172.16.11.11, 00:00:02, FastEthernet0/0> > (towards sw1)> > > > But, when I
put the static route with ad 110,> > > > ip route 1.1.13.0 255.255.255.0
172.16.11.11 110> > > > it uses the static route instead of ospf> > > >
rack1r1#sh ip route 1.1.13.1> > Routing entry for 1.1.13.0/24> > Known via
"static", distance 110, metric 0> > Routing Descriptor Blocks:> > *
172.16.11.11> > Route metric is 0, traffic share count is 1> > > > > >
rack1r1#sh ip route ospf> > > > > > (nothing)> > > > LOL, I guess even with
same AD you can't use two TYPES of routes to load> balance.> > > > -Joe> > > >
> > _____ > > From: Larry [mailto:cc13lab@gmail.com] > Sent: Tuesday, February
05, 2008 11:30 AM> To: Joseph Brunner> Cc: ccielab@groupstudy.com> Subject:
Re: Route preference> > > > That should be a 1 not a 0...> > > > default ad =
0> > > > On 2/5/08, Larry <cc13lab@gmail.com> wrote: > > Only the static route
would be put into the table as its default ad = 0:> > > > r1#show ip route
150.1.3.3 <http://150.1.3.3/> > Routing entry for 150.1.3.3/32> Known via
"ospf 1", distance 110, metric 65, type intra area> Last update from
150.1.13.3 <http://150.1.13.3/> on Serial1/1, 00:00:26> ago> Routing
Descriptor Blocks:> 150.1.13.3 <http://150.1.13.3/> , from 150.1.3.3
<http://150.1.3.3/> ,> 00:00:26 ago, via Serial1/1> Route metric is 65,
traffic share count is 1> * 150.1.12.2 <http://150.1.12.2/> , from 150.1.2.2
<http://150.1.2.2/> ,> 00:00:26 ago, via Serial1/0.1> Route metric is 65,
traffic share count is 1> > r1#conf t> Enter configuration commands, one per
line. End with CNTL/Z.> r1(config)# ip route 150.1.3.3 <http://150.1.3.3/>
255.255.255.255> <http://255.255.255.255/> 150.1.13.3 <http://150.1.13.3/> 110
> r1(config)#^Z> r1#show ip route 150.1.3.3 <http://150.1.3.3/> > Routing
entry for 150.1.3.3/32> Known via "static", distance 110, metric 0> Routing
Descriptor Blocks:> * 150.1.13.3 <http://150.1.13.3/> > Route metric is 0,
traffic share count is 1> > -larry > > > > On 2/5/08, Joseph Brunner
<joe@affirmedsystems.com> wrote: > > Both would be in the routing table. But
there will no load balancing unless> cef is disabled (no ip cef). With cef the
OLDEST or first learned route is> USED only... so if you want true load
balancing using the routing table,> disable cef.> > josCEF> > -----Original
Message-----> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf Of> Robert CCIE> Sent: Monday, February 04, 2008 8:07 PM> To:
ccielab@groupstudy.com> Subject: Route preference> > Hello Everyone,> I was
just wondering how a router behaves in these situations. If a> router learns a
route through a routing protocol but there is a static> route with the same
admin distance configured. Which route would be> installed in the routing
table? Or would both be installed? Also, I'm> guessing metrics only matter for
that routing protocols process as far> as calculation since a static route has
a metric of 0.> > So, if a router is learning 192.168.1.0/24 through ospf and
there is a> static route for 192.168.1.0/24 with AD of 110. Thank you in
advance.> > -Robert> >
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