31, 2001 4:36 PM
To: [EMAIL PROTECTED]
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
As you are likely aware, running TE over area borders isn't an available
option these days due to the loss of traffic engineering info at those
borders. Hence, migrating to a single area might enhan
> I am not very sure but I believe OSPF will prefer
> Intra-Area routes despite having an alternate path
>that seemingly has a lower cost. Please correct me if I am
> wrong. Could this be an administrative distance thing?
Kevin, just for clarification, what you are describing has nothing to
do wi
er D is cost of 15.
>> From Router A via router C to reach router D is cost of 30.
>> Router B is now the preferred route. If it a test network, try playing
>> around with the costs to do asymmetrical routing.
>>
>> -Original Message-
>> From: Hire,
uter D is cost of 30.
> Router B is now the preferred route. If it a test network, try playing
> around with the costs to do asymmetrical routing.
>
> -Original Message-
> From: Hire, Ejay [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, May 31, 2001 2:02 PM
> To:
> Sub
essage-
From: Hire, Ejay [mailto:[EMAIL PROTECTED]]
Sent: Thursday, May 31, 2001 2:02 PM
To:
Subject: RE: Wanna Be a CCIE? Try This One [7:6076]
Would Moving one of the AREA 1 Routers into (a new area) Area2 Fix this?
-Original Message-
From: Michael L. Williams [mailto:[EMAIL PRO
Would Moving one of the AREA 1 Routers into (a new area) Area2 Fix this?
-Original Message-
From: Michael L. Williams [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 30, 2001 6:54 PM
To: [EMAIL PROTECTED]
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
Good call I was going
- Original Message -
> From: "Michael L. Williams"
> To:
> Sent: Wednesday, May 30, 2001 9:01 AM
> Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
>
>
> > Wait a second.. where are the ABRs?How can a router that
> > communicates routes from one O
Read carefully - routerA and routerB both have interfaces in Area0 and
Area1, which makes them both ABRs
-e-
- Original Message -
From: "Michael L. Williams"
To:
Sent: Wednesday, May 30, 2001 9:01 AM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> Wait a second...
OR you could switch the 1 and the 0 in your diagram and have a properly
designed network!
-peter slow, CCN"Blah"
- Original Message -
From: "Michael L. Williams"
To:
Sent: Tuesday, May 29, 2001 10:59 PM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
>
,
> > because R2 *is* a backbone router.
> >
> > This is not theory... It is fact.
> >
> > Alan
> >
> > - Original Message -
> > From: "Andrew Larkins"
> > To:
> > Sent: Monday, May 28, 2001 10:13 AM
> > Subject: RE:
Peter Van Oene"
To:
Sent: Tuesday, May 29, 2001 3:03 PM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> As Alan correctly points out, path cost is irrelevant in this case as
intra
> area routers will be preferred over inter.
>
>
> >> We
> >> tend to think
Hey Chuck.. I just thought of something. you only need 2
routers to have 3 OSPF Areas in your diagram you show a router "inside"
each OSPF area, however, OSPF routers (at least in my understanding and most
Cisco Press book diagrams) are either totally inside an area (all interface
but he has traffic going from one router to another,
>> it's not
>> > ever exiting the system.
>> > ...why would you want to break up an AS that small into two seperate
>> private
>> > ASes?
>> > besides... the OSPF routes are going to take preced
/me swallows his pride and seconds the motion.
-Peter Slow, CCNBlah
- Original Message -
From: "Michael L. Williams"
To:
Sent: Tuesday, May 29, 2001 7:52 PM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> I would have to agree...Given that there are 2 Europ
nd the
> problem that needs solving. BGPs powerful policy routing tools make
> it a good fit for this environment, when viewed from a requirements
> perspective.
>
> It's not the only solution, but it is a valid solution, and in my
> opinion, it's a good solution.
>
&g
e routers in AREA 0, make
the
> matching costs of the common interfaces on RTR A and RTR B lower, and be
> done with it!
>
> ;-)
> To:
> Sent: Tuesday, May 29, 2001 10:52 AM
> Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
>
>
> > Peter,
> >
> > OSPF
>ALL RIGHT, LOOK! The OSPF domain probably isn't big enough to demand
>multiple areas anyway, so just put ALL 4 of the routers in AREA 0, make the
>matching costs of the common interfaces on RTR A and RTR B lower, and be
>done with it!
Please! Nothing wrong with having a single-area OSPF netwo
t;> opinion, it's a good solution.
>>
>> Alan
>>
>> - Original Message -
>> From: "Peter I. Slow, CCNP Voice Specialist"
>> To: "W. Alan Robertson" ;
>>
>> Sent: Tuesday, May 29, 2001 1:02 PM
>> Subject: Re: Wann
L PROTECTED]...
>> ... or route-map the router D network(s) to go through Router B at Router
>A
>>
>>
>> ----- Original Message -----
>> From: "Chris Larson"
>> To:
>> Sent: Tuesday, May 29, 2001 7:24 AM
>> Subject: RE: Wanna Be a CCIE? Try This One [7:6076
I have not yet begun to tizzy! ;)
- Original Message -
From: "Peter I. Slow, CCNP Voice Specialist"
To: "W. Alan Robertson" ;
Sent: Tuesday, May 29, 2001 2:16 PM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> ...don't get all in a tizzy, i recogni
t: Re: Wanna Be a CCIE? Try This One [7:6076]
> Peter,
>
> OSPF has a distance of 110, and yes, iBGP has a distance of 200. By
> having seperate routing domains for North America and Europe, he could
> use eBGP (Distance - 20) between his two networks.
>
> Distance wouldn't
low, CCNP Voice Specialist" ;
Sent: Tuesday, May 29, 2001 1:39 PM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> Peter,
>
> OSPF has a distance of 110, and yes, iBGP has a distance of 200. By
> having seperate routing domains for North America and Europe, he could
> use e
t how your going to get
around this ...
steve
>From: "Kevin Schwantz"
>Reply-To: "Kevin Schwantz"
>To: [EMAIL PROTECTED]
>Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
>Date: Tue, 29 May 2001 12:18:33 -0400
>
>Thats a good point James. D
, May 29, 2001 1:17 PM
To: [EMAIL PROTECTED]
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
Absolutely, but he has traffic going from one router to another, it's not
ever exiting the system.
...why would you want to break up an AS that small into two seperate private
ASes?
besides... the
l Message -
> From: "David Chandler"
> To:
> Sent: Tuesday, May 29, 2001 12:00 PM
> Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
>
> > Have you tried an inboud distribution list on Router A's area 1
> > interfaces. If router A doesn't learn th
What about the fact that OSPF will install an Intra-area route over
and Inter-area route regardless of cost?
:)
- Original Message -
From: "Hire, Ejay"
To:
Sent: Tuesday, May 29, 2001 12:46 PM
Subject: RE: Wanna Be a CCIE? Try This One [7:6076]
> Okay, based
it is a valid solution, and in my
opinion, it's a good solution.
Alan
- Original Message -
From: "Peter I. Slow, CCNP Voice Specialist"
To: "W. Alan Robertson" ;
Sent: Tuesday, May 29, 2001 1:02 PM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> Ab
Planetary Networks
535 West 34th Street
New York, NY
10001
Cell:(516) 782.1535
Desk: (646) 792.2395
Mail: [EMAIL PROTECTED]
Fax:(646) 792.2396
- Original Message -
From: "Kevin Schwantz"
To:
Sent: Tuesday, May 29, 2001 11:38 AM
Subject: Re: Wanna Be a CCIE? Try This O
- Original Message -
From: "Kevin Schwantz"
To:
Sent: Tuesday, May 29, 2001 11:50 AM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> Peter,
> Thanks for your input. I hope my description of the geographical topology
in
> another post should point out why I want my traf
- Original Message -
From: "W. Alan Robertson"
To: "Peter I. Slow, CCNP Voice Specialist" ;
Sent: Tuesday, May 29, 2001 12:42 PM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> Peter,
>
> With all due respect, he doesn't have an IGP problem... He
:(646) 792.2396
- Original Message -
From: "David Chandler"
To:
Sent: Tuesday, May 29, 2001 12:00 PM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> Have you tried an inboud distribution list on Router A's area 1
> interfaces. If router A doesn't learn the
s 120, and BGP int routes are 200
(right?)
- Original Message -
From: "W. Alan Robertson"
To: "Peter I. Slow, CCNP Voice Specialist" ;
Sent: Tuesday, May 29, 2001 12:42 PM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> Peter,
>
> With all due respe
ation. In the absence of
more information, the use of BGP sounds like a pretty good solution to
the given problem.
Alan
- Original Message -
From: "Peter I. Slow, CCNP Voice Specialist"
To:
Sent: Tuesday, May 29, 2001 11:29 AM
Subject: Re: Wanna Be a CCIE? Try This One [7:607
M
To: [EMAIL PROTECTED]
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
Thanks for the recommendations. Firstly, let me explain why I need the
routing to behave in such a way. The reasons are purely geographical and I
want to reduce latency. Routers A and B are in London and connected back to
ba
tined
> > > for RouterD (NewYork) to have to go to SanJose first. It would be much
> > > better if the hop is A-B-D instead of A-C-D.
> > >
> > > Schwantz
> > >
> > > ""EA Louie"" wrote in message
> > > [EMAIL
t; > >
> > >
> > > > Place a summary route to null 0 for the networks on Router D on your
> > OSPF
> > > > routers and set the metrics appropriately for the summary route
> > > >
> > > &g
ge
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > ... or route-map the router D network(s) to go through Router B at Router
> A
> >
> >
> > - Original Message -----
> > From: "Chris Larson"
> > To:
> > Sent: Tuesday, May 29, 200
age -----
> From: "Kevin Schwantz"
> To:
> Sent: Tuesday, May 29, 2001 10:03 AM
> Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
>
>
> > routerArouterB
> > AREA0AREA0
> > |
message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> ... or route-map the router D network(s) to go through Router B at Router
A
>
>
> - Original Message -
> From: "Chris Larson"
> To:
> Sent: Tuesday, May 29, 2001 7:24 AM
> Subject: RE: Wanna Be a
next time you recomend using bgp to fix an IGP problem, im going to.., well,
uh, just dont do it again.
- Original Message -
From: "Chuck Larrieu"
To:
Sent: Tuesday, May 29, 2001 10:38 AM
Subject: RE: Wanna Be a CCIE? Try This One [7:6076]
> Run BGP on all routers and m
... or route-map the router D network(s) to go through Router B at Router A
- Original Message -
From: "Chris Larson"
To:
Sent: Tuesday, May 29, 2001 7:24 AM
Subject: RE: Wanna Be a CCIE? Try This One [7:6076]
> Place a summary route to null 0 for the networks on Rou
terarea traffic must traverse the backbone"
> rule,
> > because R2 *is* a backbone router.
> >
> > This is not theory... It is fact.
> >
> > Alan
> >
> > - Original Message -
> > From: "Andrew Larkins"
> > To:
> > Sen
ginal Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Kevin Schwantz
Sent: Tuesday, May 29, 2001 7:03 AM
To: [EMAIL PROTECTED]
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
routerArouterB
AREA0
PROTECTED]
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
routerArouterB
AREA0AREA0
||
routerC routerD
AREA1-AREA1
Since we are on the topic of OSPF, could
om: "Andrew Larkins"
> To:
> Sent: Monday, May 28, 2001 10:13 AM
> Subject: RE: Wanna Be a CCIE? Try This One [7:6076]
>
>
> > agreedto area 0 then on to the intended area
> >
> > -----Original Message-----
> > From: Circusnuts [mailto:[EMAIL PROT
e a CCIE? Try This One [7:6076]
> agreedto area 0 then on to the intended area
>
> -Original Message-
> From: Circusnuts [mailto:[EMAIL PROTECTED]]
> Sent: 28 May 2001 15:50
> To: [EMAIL PROTECTED]
> Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
>
>
>
agreedto area 0 then on to the intended area
-Original Message-
From: Circusnuts [mailto:[EMAIL PROTECTED]]
Sent: 28 May 2001 15:50
To: [EMAIL PROTECTED]
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
Chuck- my answer is Yes. The traffic from the Virtual Linked psuedo-ABR
Be a CCIE? Try This One [7:6076]
> Ever wonder what the CCIE candidates talk about on the CCIE list?
>
> The following message came through today. I thought the bright folks on
this
> list might be curious, and might want to venture an answer.
>
> Begin original question:
>
&
any rules, and is in fact a desired behavior.
Alan
- Original Message -
From: "Chuck Larrieu"
To:
Sent: Sunday, May 27, 2001 8:59 PM
Subject: Wanna Be a CCIE? Try This One [7:6076]
> Ever wonder what the CCIE candidates talk about on the CCIE list?
>
> The followin
Ever wonder what the CCIE candidates talk about on the CCIE list?
The following message came through today. I thought the bright folks on this
list might be curious, and might want to venture an answer.
Begin original question:
Guys,
I wonder if there is anybody who remembers the discussion on
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