Do you use virtual links for connecting the two backbone area's?
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Sent: Friday, May 30, 2003 4:41 AM
Subject: RE: rare OSPF question [7:69819]
Do you use virtual links for connecting the two backbone area's?
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Hello Curious,
To answer your questions:
1. router C is ABR although no traffic can pass between area A and B through
C unless you have some virtual links between router C and A or B.
2. This won't cause any non-stable ospf database
3. There is no way for communication between two non-backbone
I can't seem to find the original message with the other questions,
but let me comment on the discontiguous area 0.0.0.0 problem.
There's an inside the box solution using OSPF facilities, and what
may be a more general outside the box solution.
Using a virtual link assumes that the
I can't seem to find the original message with the other questions,
but let me comment on the discontiguous area 0.0.0.0 problem.
There's an inside the box solution using OSPF facilities, and what
may be a more general outside the box solution.
Using a virtual link assumes that the
Hi everyone,
Can someone tell me that only ABR will ORIGINATE type 4 LSA in OSPF or both
ABR and ASBR do?
Thanks
Xy
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LSA type 1 originated by ASBR, and ABR will change the LSA type 1 to LSA
type 4 in area 0.
Catherine
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of
Xy Hien Le
Sent: Monday, March 24, 2003 12:25 PM
To: [EMAIL PROTECTED]
Subject: type 4 LSA updates OSPF
At 08:25 PM 3/24/2003 +, Xy Hien Le wrote:
Hi everyone,
Can someone tell me that only ABR will ORIGINATE type 4 LSA in OSPF or both
ABR and ASBR do?
Only ABRs originate type 4 summaries.
Pete
Thanks
Xy
Message Posted at:
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PM
To: [EMAIL PROTECTED]
Subject: RE: OSPF Question / Problem [7:60485]
Resolved, thanks Chuck
However, this is how I fixed it. I told the OSPF process on both router a
and b, to put the actual interface into the ospf process, and not just
listing the networks there. For example, I did on router b
John,
There are 5 ospf network types:
1. point-to-point - such as T-1, valid neighbors on each end will always
become adjacent.
2. Broadcast - such as ethernet, token ring, and FDDI. Broadcast
network are capable of connecting more than 2 devices. OSPF routers on the
broadcast network will
Configure ip ospf network point-to-point on the loopback interfaces. They
will then be announced as their natural masks, rather than the /32 host
masks.
Debbie
On Sun, 5 Jan 2003, Bruno Fernandes wrote:
OK Rookie question
I have 2 routers connected with a PPP link (serial)
Router A in
G'Day all
1). Have 2 routers at the moment connected back to back. can see each s0 int
on each router after the connection is up. For some reason, I cant seem to
start the ospf process across this link. The code I think is ok.
router a
interface Serial0
ip address 192.168.1.5 255.255.255.252
check the ip of router A serial 0. if I am reading correctly, you have a
typo in the ospf network statement.
--
TANSTAAFL
there ain't no such thing as a free lunch
John Brandis wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
G'Day all
1). Have 2 routers at the moment
John Brandis wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
G'Day all
snip the part answered elsewhere
Also, does OSPF make any assumptions about the network type if it is not
specified, and if not, what are the default settings for OSPF interface
network types ( hope that
[mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 7 January 2003 3:29 PM
To: [EMAIL PROTECTED]
Subject: OSPF Question / Problem [7:60485]
G'Day all
1). Have 2 routers at the moment connected back to back. can see each s0 int
on each router after the connection is up. For some reason, I cant seem
ime dude
no problem. all your interface are belong to ospf. make your time.
John
Sydney Australia
Ps: sorry for the disclaimer size, its huge
-Original Message-
From: John Brandis [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 7 January 2003 3:29 PM
To: [EMAIL PROTECTED]
Subject: OSPF
Router A:
network 192.168.1.6 0.0.0.0 area 0
typo in posting or typo in config?
hth,
Mark.
-Original Message-
From: John Brandis [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 06, 2003 8:29 PM
To: [EMAIL PROTECTED]
Subject: OSPF Question / Problem [7:60485]
G'Day all
1). Have
OK Rookie question
I have 2 routers connected with a PPP link (serial)
Router A in area 0
Router B in area 20
I have several loopback interfaces in Router B area 20 and announced as
area 20, I have configured the loopback interfaces with C class
addresses. But when I issue a show ip route
Bruno Fernandes wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
OK Rookie question
I have 2 routers connected with a PPP link (serial)
Router A in area 0
Router B in area 20
I have several loopback interfaces in Router B area 20 and announced as
area 20, I have configured
Message -
From: Bruno Fernandes
To:
Sent: Sunday, January 05, 2003 11:06 AM
Subject: OSPF question [7:60342]
OK Rookie question
I have 2 routers connected with a PPP link (serial)
Router A in area 0
Router B in area 20
I have several loopback interfaces in Router B area 20
In router A the intf is configured as serial 0/0.2 point-to-point
(frame-relay)
In router B the intf is configured as a normal frame-relay intf
I have issued a show ip ospf interface
And in both routers the network type is point-to-point
So there is no need for me to force the ip ospf network
20
Full OSPF adj has been achieved
Thanks for your help,
BF
-Original Message-
From: Michael W. Oliver [mailto:[EMAIL PROTECTED]]
Sent: domingo, 5 de Janeiro de 2003 16:38
To: Bruno Fernandes; [EMAIL PROTECTED]
Subject: Re: OSPF question [7:60342]
do you have the PPP interface on router
Perhaps I misunderstood the problem. I thought you said you were seeing the
loopback interface addresses as hosts, not as /24 networks. Correct?
I thought you said that you wanted to see the loopbacks as /24's. Correct?
if that is the correct definition of the problem, then re-read my post.
If
Jeff, maybe u could configure area 1 as a totally stubby area, that way it
would generate a default route pointing to rtrb.
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Anyone know how to advertise a default route (without using static routes)
to only one OSPF router. e.g.
You have
RTRA
|AREA0
|
|AREA0
RTRB
|AREA1
|
|AREA1
RTRC
On RTRB you want to advertise a default route to RTC C and only RTC C
without using static routes...
Thanks...
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Yes; however, the default route will be sent to all routers in the OSPF
domain. I was wondering if a route-map or something similar might be used
to ensure only one router can get the default route info and no others in
the ospf domain will get it...
Thanks.
Message Posted at:
Jeff Specoli wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Anyone know how to advertise a default route (without using static routes)
to only one OSPF router. e.g.
You have
RTRA
|AREA0
|
|AREA0
RTRB
|AREA1
|
|AREA1
RTRC
On RTRB you want to advertise a default
On the originating router:
router ospf 1
default-information originate always
On the routers which don't accept the advertissement:
router ospf 1
distribute-list 10 in
access-list 10 deny 0.0.0.0 0.0.0.0
access-list 10 permit any
Jeff Specoli wrote in message
[EMAIL
Can you show us the rest of the config of R5-2602? Are you using any
filtering? (i.e. distribute-lists/route-maps). I've seen routes (LSAs) in
the OSPF database and not in the routing table due to filtering. What about
clearing the route table?
Curious - Is this the entire routing table?
: Interesting OSPF Question [7:40718]
Date: Sat, 6 Apr 2002 22:09:48 -0500
Guys,
I found that that the command for Virtual Link, i.e
Area X virtual-link a.b.c.d
has options to change Hello and Dead interval as well.
Does it means that when we change the Hello and Dead interval in AREA 0,
We must have
Guys,
I found that that the command for Virtual Link, i.e
Area X virtual-link a.b.c.d
has options to change Hello and Dead interval as well.
Does it means that when we change the Hello and Dead interval in AREA 0,
We must have to modify these values here on virtual link command as well??
comments inline
At 02:32 AM 3/12/2002 -0500, Hunt Lee wrote:
To ALL,
I have 2 OSPF questions, it would be greatly appreciated if someone can shed
some light on this.
1) Does an OSPF Stub Area blocks Type 5 LSAs Type 4 LSAs, or do they just
block Type 5 LSAs?
Stub restricts both. Consider
the process number is locally signifcant. Its not like the EIGRP AS number,
the process id isnt sent from router to router. However, I like to configure
my process ids to be the same..
Message Posted at:
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when configuring ospf the first command is:
router ospf process-id
Does the process id have any signifigance? for instance, If i have one
router with pid of 10 and another with pid 12 can both of them function in
area 0. If so, where does the process-id come into effect. What is it
specified
Yes, they can both be in area 0. PID is a Cisco specific function that
allows for more than 1 OSPF process run on a router at once. It has local
signifigance only.
--
RFC 1149 Compliant.
Justin M. Clark wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
when configuring ospf
Thanks for the fast answer!
Justin
Steven A. Ridder wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Yes, they can both be in area 0. PID is a Cisco specific function that
allows for more than 1 OSPF process run on a router at once. It has local
signifigance only.
--
RFC
It doesn't affect area. (It's local to the router) The best use is for
troublshooting or resetting counters. You can reset according to the pid.
-Original Message-
From: Justin M. Clark [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 11, 2002 4:18 PM
To: [EMAIL PROTECTED]
Subject: OSPF
[mailto:[EMAIL PROTECTED]]
Sent: Monday, March 11, 2002 5:18 PM
To: [EMAIL PROTECTED]
Subject: OSPF Question [7:37899]
when configuring ospf the first command is:
router ospf process-id
Does the process id have any signifigance? for instance, If i have one
router with pid of 10 and another with pid
Can you give me an instance where I would want to have multi processes
ospf?
Justin
-Original Message-
From: Roberts, Larry [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 11, 2002 4:46 PM
To: 'Justin M. Clark'; [EMAIL PROTECTED]
Subject: RE: OSPF Question [7:37899]
Process ID
processes
ospf?
Justin
-Original Message-
From: Roberts, Larry [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 11, 2002 4:46 PM
To: 'Justin M. Clark'; [EMAIL PROTECTED]
Subject: RE: OSPF Question [7:37899]
Process ID is of local significance only. That number does not appear
To ALL,
I have 2 OSPF questions, it would be greatly appreciated if someone can shed
some light on this.
1) Does an OSPF Stub Area blocks Type 5 LSAs Type 4 LSAs, or do they just
block Type 5 LSAs?
2) I know that when an OSPF Stub Area is attached to an ABR, the ABR will
automatically
At 12:01 AM 3/5/02, Hunt Lee wrote:
TCP / IP Vol1 by Jeff Doyle says if a subnet is summarized by a summary
address, the subnet's instability will no longer be advertised. But if this
is the case, then what happens if:-
e.g. Router A advertised a summary route (advertising subnet 172.20.10.0
I believe someone might have mentioned this already but since I'm studying
it right now I thought I'd ask again... It would be greatly appreciated if
someone can shed some light on this.
For OSPF, I understand that a flapping subnet will cause LSAs to be
flooded throughout the internetwork at
unless you are advertising a host route, I don't think there would be any
effect here. and to be truthful, I'm not sure that the routing process cares
one way or another so long as the particular router's LAN port is
functional.
the routing table would show that host route 172.20.10.1 is
Comments below
On Tue, 5 Mar 2002, Hunt Lee ([EMAIL PROTECTED]) wrote:
I believe someone might have mentioned this already but since
I'm
studying
it right now I thought I'd ask again... It would be greatly
appreciated
if
someone can shed some light on this.
For OSPF, I
Thanks for all the info, I was being a dumb a**. I was thinking that the BDR
would not know that the DR went down (because the loopback was always up). I
then remembered the hello packets. Thats what determines when an interface
is truely down or not (not sending hello packets). Thanks again
Loopbacks are used because they never go down or should never go down, to
make one the DR assign the highest loopback to the desired router. HTH's
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In determining DR and BDR, OSPF will use the priority and the Router ID. I
can change the Router ID by creating a loopback with a higher ID (IP address
right?). Why would I do this? Why would I not just change the priority of
the router in question? If I want a specific router to be the DR, why
Always know multiple ways to do things. Priority overrides RID.
cclark wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
In determining DR and BDR, OSPF will use the priority and the Router ID. I
can change the Router ID by creating a loopback with a higher ID (IP
address
Priority to me seems most useful for specifying which routers should never
be dr/bdr, most people would never want a 25xx to be dr.
Bri
On Wed, 27 Feb 2002, Scott H. wrote:
Always know multiple ways to do things. Priority overrides RID.
cclark wrote in message
[EMAIL
You can have a better numbering/identificaton process if you use loopback
numbers, rather than some arbitraty IP.
--
RFC 1149 Compliant.
cclark wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
In determining DR and BDR, OSPF will use the priority and the Router ID. I
can
not directly related to electing DR/BDR, but i use loopbacks for management.
it's the ip i associate in my hosts file for ssh access. also with
loopbacks i can control the ip for easier troubleshooting since i use a
numbering scheme where the 2nd octet indicates which physical location the
Hi Hunt,
I did some research and found this:
Hello packets behave differently depending on the network type as described
below.
Point-to-point Network
Neighbor discovery is dynamic
Hello is sent to the multicast address AllSPFRouter (224.0.0.5)
No DR/BDR election
Broadcast Network
Neighbor
Hunt Lee wrote:
I believe someone might have mentioned this already but since
I'm studying
it right now I thought I'd ask again... It would be greatly
appreciated if
someone can shed some light on this.
For OSPF Point-to-MulitPoint Network type, does the OSPF
packets use
multicast or
I believe someone might have mentioned this already but since I'm studying
it right now I thought I'd ask again... It would be greatly appreciated if
someone can shed some light on this.
For OSPF Point-to-MulitPoint Network type, does the OSPF packets use
multicast or unicast?
My understanding
Hi guys,
Hoping to pick someone's brain about this issue that we're seeing:
We have two 6509 Cat switches with a Gig trunk and RSM's. Multiple VLAN's
are configured on the RSM and we are running OSPF (area 0). The problem we
have is that the two 6509's are forming OSPF adjacancies with each
ARe we allowed to put IP ospf point to point command on loopback interfaces
in order to get their actual mask instead of /32 in CCIE ALB??? Or do we
have to use are0 range command to summarize this??
Thanks for the help.
Cisco lover
Of
Cisco Lover
Sent: Friday, September 14, 2001 4:06 AM
To: [EMAIL PROTECTED]
Subject: A deep OSPF Question [7:19923]
ARe we allowed to put IP ospf point to point command on loopback interfaces
in order to get their actual mask instead of /32 in CCIE ALB??? Or do we
have to use are0 range command
I would say that depends on what they ask you to do. I assume you know how
to do both?
Peter
*** REPLY SEPARATOR ***
On 9/14/2001 at 7:06 AM Cisco Lover wrote:
ARe we allowed to put IP ospf point to point command on loopback
interfaces
in order to get their actual mask
On Fri, 14 Sep 2001, Cisco Lover wrote:
ARe we allowed to put IP ospf point to point command on loopback
interfaces
in order to get their actual mask instead of /32 in CCIE ALB??? Or do we
have to use are0 range command to summarize this??
I would imagine you can use any method you like
Hi all,
If I setup OSPF between two routers in two different states, one with a
192.168.* address and the other with a 10.10.* address; Is it possible to
have these setup as neighbors so that they pass along keepalive messages
with each other such as the Hello/Dead intervals?
Bob Perez
EPX
I'm not sure I understand the question and I can interpret it a couple
of ways.
Are you asking if you can have a different IP address on each end of
the link? If so, why would you consider doing that? Is there some
problem that you're trying to solve? Since I'm pretty sure you don't
mean
Are they connected? Perhaps some sort of virtual link with authentication
would be good??
Brian
- Original Message -
From: Robert Perez
To:
Sent: Tuesday, August 28, 2001 9:10 AM
Subject: OSPF question [7:17541]
Hi all,
If I setup OSPF between two routers in two different
since I would like to perform the opposite type of configuration.
-Original Message-
From: John Neiberger [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, August 28, 2001 12:50 PM
To: [EMAIL PROTECTED]
Subject: Re: OSPF question [7:17541]
I'm not sure I understand the question and I can
like to perform the opposite type of configuration.
-Original Message-
From: John Neiberger [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, August 28, 2001 12:50 PM
To: [EMAIL PROTECTED]
Subject: Re: OSPF question [7:17541]
I'm not sure I understand the question and I can interpret it a couple
This question is destined to Howard, because it is in regards to his nice
OSPF tutorial on http://www.CertificationZone.com.
Under OSPF Hello Processing, you have an output from a router (Munster) for
the command show ip ospf int.
I have looked through that output, and there is something I do
A closer look at that output will show that munsters OSPF priority is set to
0, thereby making it ineligible for election. Otherwise, you would find
that it would fill a BDR role as you expected - assuming munster would be
set to the default priority of 1, equal to the other router, leaving RID
~~~
NEED A JOB ???
http://www.oledrews.com/job
~~~
-Original Message-
From: Peter Van Oene [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, July 03, 2001 2:50 PM
To: [EMAIL PROTECTED]
Subject: Re: An OSPF question to Howard (and others) [7:10873
Hello all,
I am wondering if some could help clear up a query in regards to router =
network lsa's (Type 12).=20
Does the DR flood the router lsa type out to other segments in an area?=20
Thanks in advance..
_
FAQ, list archives, and subscription info:
Consider the above OSPF network. You have configured a virtual path to
connect Area 3 with Area 0. What is your assessment of this network?
1. The network will work. However, you must configure a second
virtual link through router B to ensure there are no routing loops.
2.
Manish,
Is this a Zen question G?
Manish Patel wrote:
Consider the above OSPF network. You have configured a virtual path to
connect Area 3 with Area 0. What is your assessment of this network?
_
FAQ, list archives, and subscription info:
Ever the optimist I believe the answer is 3.
HTH
Gareth
Thoughts for the week:
Artificial intelligence is no match for natural stupidity.
Before you criticise someone, walk a mile in his shoes. That way, if he gets
angry, he'll be a mile away - and barefoot.
""Manish Patel"" [EMAIL
Hello everybody
I need some help with the following:
Given the following
loopback 0
ip address 10.10.10.1 255.255.255.0
router ospf 1
network 10.0.0.0 0.0.0.255 area 0
sh ip route 10.10.10.1
known via connected loopback 0
distributed via ospf 1
10.10.10.1 255.255.255.255
what I want is
to the
router as a network directly connected and thus able to be advertised.
Please correct this if it is incorrect.
Adam Hickey
[EMAIL PROTECTED]
- Original Message -
From: "Elaluf, Sylvia," [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 04, 2000 6:10 AM
Sub
"Elaluf, Sylvia," [EMAIL PROTECTED] wrote,
Given the following
loopback 0
ip address 10.10.10.1 255.255.255.0
router ospf 1
network 10.0.0.0 0.0.0.255 area 0
sh ip route 10.10.10.1
known via connected loopback 0
distributed via ospf 1
10.10.10.1 255.255.255.255
what I want is to
Sylvia," [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 04, 2000 6:10 AM
Subject: OSPF question
Hello everybody
I need some help with the following:
Given the following
loopback 0
ip address 10.10.10.1 255.255.255.0
router ospf 1
network 10.0.0.0 0.0.0.255 area 0
sh
Well,
i think you should try the command "ip ospf network point-to-point" under
the loopback.
bye.
-Message d'origine-
De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]De la part de
Elaluf, Sylvia,
Envoyé : lundi 4 décembre 2000 15:11
À : [EMAIL PROTECTED]
Objet : OSP
OTECTED]
Subject: Re: OSPF question
Date: Mon, 4 Dec 2000 11:34:01 -0500
"Elaluf, Sylvia," [EMAIL PROTECTED] wrote,
Given the following
loopback 0
ip address 10.10.10.1 255.255.255.0
router ospf 1
network 10.0.0.0 0.0.0.255 area 0
sh ip route 10.10.10.1
known via connected loo
,
Sent: Monday, December 04, 2000 6:11 AM
To: [EMAIL PROTECTED]
Subject:OSPF question
Hello everybody
I need some help with the following:
Given the following
loopback 0
ip address 10.10.10.1 255.255.255.0
router ospf 1
network 10.0.0.0 0.0.0.255 area 0
sh ip route 10.10.10.1
known
interface loopback 0
ip ospf network point-to-point
!
that'll make it push it out as a /24, not /32.
On Mon, 4 Dec 2000, Elaluf, Sylvia, wrote:
Hello everybody
I need some help with the following:
Given the following
loopback 0
ip address 10.10.10.1 255.255.255.0
router
You can also summarize the route
-Eddie
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Paul Schultz
Sent: Monday, December 04, 2000 6:31 PM
To: Elaluf, Sylvia,
Cc: [EMAIL PROTECTED]
Subject: Re: OSPF question
interface loopback 0
ip ospf network
PM
Subject: ospf question help
dear group,
Suppose I have 2 leased lines(unequal bandwidth) connecting outworld,and
I run ospf on my 2 router,each router connect one line.How could I use
load-banlance?what config should I use with my router?
Help me.
TIA
Dean
Jianxin-qch1927
Subject: RE: ospf question help
what I mean "outside world" must not be Internet,so
you can not give me a sense answer.Anyway,thanks.
Dean
--- Liu Jianxin-qch1927 [EMAIL PROTECTED]
wrote:
In this way, your service provider must run ospf as
well, but mostly it is
Dear droup,
The question I post today may be not make you clear.What I mean is:
Can I make ordinary trafic through one leased-line and urgent trafic
through another leased-line,that is ,can I control the behavior of
load-balance.And how?
thanks again
dean
_
OSPF only supports balacing over equal cost paths. Are the same
destinations being "learned" from both links? Or are they different
routes/destinations?
On Mon, 6 Nov 2000, Zhang Jin wrote:
Dear droup,
The question I post today may be not make you clear.What I mean is:
Can I make
PROTECTED] on 06/11/2000 06:47:56 pm
Please respond to Zhang Jin [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
cc:(bcc: JENNY MCLEOD/NSO/CSDA)
Subject: ospf question --sorry for not clear
Dear droup,
The question I post today may be not make you clear.What I mean is:
Can I make ordinary
dear group,
Suppose I have 2 leased lines(unequal bandwidth) connecting outworld,and
I run ospf on my 2 router,each router connect one line.How could I use
load-banlance?what config should I use with my router?
Help me.
TIA
Dean
_
FAQ, list archives, and
PROTECTED]] On Behalf Of
Zhang Jin
Sent: Sunday, November 05, 2000 9:56 PM
To: [EMAIL PROTECTED]
Subject: ospf question help
dear group,
Suppose I have 2 leased lines(unequal bandwidth) connecting outworld,and
I run ospf on my 2 router,each router connect one line.How could I use
loa
In this way, your service provider must run ospf as well, but mostly it is impossible.
You should run other protocols, such as BGP.
-Original Message-
From: Zhang Jin [mailto:[EMAIL PROTECTED]]
Sent: Monday, November 06, 2000 5:56 AM
To: [EMAIL PROTECTED]
Subject: ospf question help
The ACRC Exam certification guide from Cisco press (ISBN 0735700753) states
on page 156 that a stub area "...will not accept external summary routes.
The LSAs blocked are types 3 and 4 (summary link LSAs that are generated by
the ABRs)." The paragraph then goes on to state that in a stub area
- OSPF question
The ACRC Exam certification guide from Cisco press (ISBN 0735700753) states
on page 156 that a stub area "...will not accept external summary routes.
The LSAs blocked are types 3 and 4 (summary link LSAs that are generated by
the ABRs)." The paragraph then goes o
and 5 LSAs, and totally stubby's go even further and block the type
3's as well.
- Original Message -
From: Miller, Nathan (AZ15)
To: [EMAIL PROTECTED]
Sent: Monday, October 02, 2000 10:49 AM
Subject: HELP - OSPF question
The ACRC Exam certification guide from Cisco press (ISBN 0735700753
Page 156 of that particular book is a mess. In general, it's a good book,
but that page has numerous mistakes. I submitted lots of changes to Cisco
Press, but, alas, they ignored me. For learning OSPF, I recommend Routing
TCP/IP by Jeff Doyle instead.
Priscilla
At 07:49 AM 10/2/00, Miller,
When I Debug Ip ospf rip, I'm getting something that looks odd every 10
seconds or so. Could someone explain the following... I attached the config
to the end of the message, so It's kind of long. (Sorry.)
Tanks for the help.
Router2#debug ip ospf events
OSPF events debugging is on
OSPF:
display this message in its console
logs. Only the router whose interface is in an area other than area 0
generates the error message.
HTH
From: "Ejay Hire" [EMAIL PROTECTED]
Reply-To: "Ejay Hire" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: DEBUG IP OSPF question
Date:
as far as i can tell...
you have not specified which areas your interfaces are to be part of.
Regards,
Jason Baker
-Original Message-
From: Ejay Hire [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 13, 2000 2:51 AM
To: [EMAIL PROTECTED]
Subject: DEBUG IP OSPF question
When
On Mon, 14 Aug 2000, Chuck Larrieu wrote:
This question came up on another list. I thought I would repeat it here, and
see what kind of discussion it engenders.
Question: how does one repair a discontiguous OSPF area?
e.g. Area_2-Area_0---Area_2
I would imagine
Would the answer be "use a virtual link"?
Just guessing.
David
-Original Message-
From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
Sent: Monday, August 14, 2000 11:52 PM
To: Cisco Mail List
Subject: OSPF question - discontiguous areas
This questi
Hi!
Change one of the area number from 2 to something else expect 0.
This question came up on another list. I thought I would repeat it here,
and
see what kind of discussion it engenders.
Question: how does one repair a discontiguous OSPF area?
e.g.
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