Dear all,
I would like ask how to config cost in OSPF:
1. with enviroment NBMA (example Frame) and topology
Hub-Spoke then Cost from Hub Router to all Spoke
the same (becase the samer1 physical interface ).
How to config cost different for each session
Hub-Spoke ?
2. if Network type
thanks a lotDanny Free wrote:
OOPS,
I forgot to add on Router 2:
!
router ospf 100
area 0 authentication message-digest.
:))
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OOPS,
I forgot to add on Router 2:
!
router ospf 100
area 0 authentication message-digest.
:))
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Hi,
Yes. If Area 0 is MD5 then virtual link must be MD5 also.
Example:
ROUTER 1
!
int loopback0
ip address 150.150.1.1 255.255.255.0
ip ospf network point-to-point
!
router ospf 100
network 150.150.1.0 0.0.0.255 area 0
network 150.150.10.0 0.0.0.255 area 0
network 150.150.20.0 0.0.0.255 area 1
hi,all
In ospf, when area 0 is authenticated by md5, should virtual-link be
authenticated by md5?
thanks in advance
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The slave will not set the M-bit to zero until it's database has been
sent. The master will keep sending a DD packet with a new sequence number
and the M-bit to zero, and the slave will keep sending a DD packet in reply
with the same sequence number and with LSA headers from it's database
I am confused with following:
In ospf link state database synchronization process,When the master =
sends last DD packet,the slave sends an acknowledging DD packet that =
also has its M-bit set to zero.But if the slave has largger link state =
database than master,slave's rest database will be
I am confused with following:
In ospf link state database synchronization process,When the master =
sends last DD packet,the slave sends an acknowledging DD packet that =
also has its M-bit set to zero.But if the slave has largger link state =
database than master,slave's rest database will be
I am confused with following:
In ospf link state database exchanging process,When slave responds DD
from master,what does it fill in its own DD packet.Does it leave DD
untouched or fill in its own LSA header.If it leaves DD untouched,how
can master get slave's database.If it fills in its own LSA
hi,all
I have a question about ospf link state database synchronization
process.
I think,two routes will be
1.exstart in which determine master/slave
2.exstart in which exchange database description packets(DDs).DDs
contrain enough information(LSA headers) to find more recent LSAs than
in its
this up on the home lab to
see what other fenish
occurrences I can find
So, just how far off am I.and just how much of a fool did I make of
myself...
Nigel
- Original Message -
From: Howard C. Berkowitz [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, November 29, 2000 8
Folks,
I was reading
through our most recent OSPF related discussion and the most recent puzzle(by
Howard) brings a couple of questions I had to the list.
Now, coming from a system admin background one of the things I
must note was the ability of the MS windows to immediately identify a
On Fri, 1 Dec 2000, Nigel Taylor wrote:
Folks,
I was reading through our most recent OSPF related discussion
and the most recent puzzle(by Howard) brings a couple of questions I
had to the list.
Now, coming from a system admin background one of the things I must
note was the
; [EMAIL PROTECTED]
Subject: RE: About OSPF and Loopback port
OK Howard. I'm not afraid to look foolish in front of everyone.
---
Howard's scenario:
Scenario 1 (R1 is initially misconfigured)
R1 E0: 10.6.0.1 DOWN R2 E0: 10.1.0.1 UP/UP
E1: 10.5.0.2
Howard, Chuck et al,
Even more strange is if you configure the loopback interface
as a point-to-point network -
e.g.
int lo0
ip address 172.16.1.1 255.255.255.0
ip osdpf network-type point-to-point
router ospf 10
network 172.16.1.1 0.0.0.0 area 0
In this configuration, the OSPF process
f Of
Chuck Larrieu
Sent: Wednesday, November 29, 2000 9:47 PM
To: Chuck Larrieu; Howard C. Berkowitz; [EMAIL PROTECTED]
Subject: RE: About OSPF and Loopback port
OK, I have run a couple of QD's. I have some observations, but I will save
them until a few of you have taken a stab at Howar
Does anyone here can explain to me, why me must use loopback port for OSPF
configuration. Thank you for the answer for this stupid question. Thank you.
moerdo.
_
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Report
To: [EMAIL PROTECTED]
Subject:About OSPF and Loopback port
Does anyone here can explain to me, why me must use loopback port for OSPF
configuration. Thank you for the answer for this stupid question. Thank you.
moerdo.
_
FAQ, list archives, and subscription info
?
-Original Message-
From: Moerdo [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 29, 2000 8:26 AM
To:[EMAIL PROTECTED]
Subject: About OSPF and Loopback port
Does anyone here can explain to me, why me must use loopback port for OSPF
configuration. Thank you for the answer
will report subsequently )
Well, gang - am I wise or still a fool?
Chuck
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Howard C. Berkowitz
Sent: Wednesday, November 29, 2000 12:37 PM
To: [EMAIL PROTECTED]
Subject:RE: About OSPF
Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Chuck Larrieu
Sent: Wednesday, November 29, 2000 8:47 PM
To: Howard C. Berkowitz; [EMAIL PROTECTED]
Subject:RE: About OSPF and Loopback port
OK Howard. I'm not afraid to look foolish in front of everyone
i am confused about the difference between ospf LSA summarization and
route summarization, i know they are different and also have certain
relationship,the LSA summarization is automatic runned at ABR,and the
route summarization must be manually configured.
what's the relationship of LSA
At 07:42 AM 10/12/00, [EMAIL PROTECTED] wrote:
Actually, EIGRP is a hybrid protocol which means it is
distance vector and link-state.
EIGRP is not a link-state protocol. It's an "advanced"
distance-vector protocol.
Regarding the main question, I wouldn't think OSPF would need
to deal
There is no need for split horizon with a link state protocol.
What is the command.
Duck
- Original Message -
From: Priscilla Oppenheimer [EMAIL PROTECTED]
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Thursday, October 12, 2000 11:08 AM
Subject: Re: about OSPF
At 01:29 AM 10/13/00, Paul Werner wrote:
Here is
what Dr. J.J. Garcia-Luna-Aceves had to say on, "Loop-Free
Routing Using Diffusing Computations.":
"A family of distributed algorithms for the dynamic computation
of the shortest paths in a computer network or internet is
presented, validated, and
Here's what all these big words mean: It's a distance vector
algorithm.
;-) Nothing in there implies it's a link-state protocol.
Well yes, you are correct. I guess I (or Dr. Garcia-Luna-
Aceves) was not totally clear on this matter. In his published
article on, "Distributed, Scalable
On Wed, 11 Oct 2000, Brian wrote:
On Thu, 12 Oct 2000, gary wrote:
hi guys:
i have 2 question:
(1)is the split horizon avaiable in OSPF ,
yes
Hi,
If I remember correctly, split horizon is needed (and applicable) only on
distance vector (RIP, (E)IGRP).. link state routing
In a message dated 10/12/00 6:46:04 AM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
On Thu, 12 Oct 2000, gary wrote:
hi guys:
i have 2 question:
(1)is the split horizon avaiable in OSPF ,
yes
Hi,
If I remember correctly, split horizon is needed (and
On Thu, 12 Oct 2000 [EMAIL PROTECTED] wrote:
Actually, EIGRP is a hybrid protocol which means it is distance vector and
link-state. Split horizon kills routing loops which can occur in either of
the 2 so it is indeed available in OSPF. I know this for a fact because there
is a command to
Here's a little note on split horizon, it appears to be rip ane igrp/eigrp
only.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios11/cbook/ciproute.htm#xtocid16743169
Brian
On Thu, 12 Oct 2000, Saverio Pangoli wrote:
On Thu, 12 Oct 2000 [EMAIL PROTECTED] wrote:
At 07:42 AM 10/12/00, [EMAIL PROTECTED] wrote:
Actually, EIGRP is a hybrid protocol which means it is distance vector and
link-state.
EIGRP is not a link-state protocol. It's an "advanced" distance-vector
protocol.
Regarding the main question, I wouldn't think OSPF would need to deal with
In a message dated 10/12/00 2:12:26 PM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
At 07:42 AM 10/12/00, [EMAIL PROTECTED] wrote:
Actually, EIGRP is a hybrid protocol which means it is distance vector and
link-state.
EIGRP is not a link-state protocol. It's an "advanced"
Forwarded by Jenny Mcleod/NSO/CSDA on 13/10/2000 08:52 am
---
[EMAIL PROTECTED] on 13/10/2000 05:57:40 am
Please respond to [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
cc: [EMAIL PROTECTED] (bcc: JENNY MCLEOD/NSO/CSDA)
Subject: Re: about OSPF,
In a message dated 10/12/00
OK, let me say it this way: EIGRP is not a distance vector and link-state
protocol. It is an advanced distance-vector protocol. It may share some
features with link-state protocols, such as fast convergence, but it does
not behave like a link-state protocol.
Priscilla
At 02:57 PM 10/12/00,
At 08:47 AM 10/13/00, Janto Cin wrote:
But is EIGRP send full routing tables changes like RIP or just updated
changes like OSPF ?
It's not easy to compare EIGRP and OSPF. Since OSPF is a link-state
protocol, it advertises links and their states, not routes. OSPF is quiet
(except for neighbor
problem. But the solution is to use the appropriate OSPF network
type and not any command that has the words "split horizons".
Hope this helps!
Paul Borghese
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, October 12, 2000 6:04 PM
Subject: Re: a
Thank you very much for the answer.
Janto
-Original Message-
From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]]
Sent: Friday, October 13, 2000 9:19 AM
To: Janto Cin; [EMAIL PROTECTED]
Subject: RE: about OSPF,
At 08:47 AM 10/13/00, Janto Cin wrote:
But is EIGRP send full routing
At 07:42 AM 10/12/00, [EMAIL PROTECTED] wrote:
Actually, EIGRP is a hybrid protocol which means it is
distance vector and link-state.
EIGRP is not a link-state protocol. It's an "advanced"
distance-vector protocol.
Regarding the main question, I wouldn't think OSPF would need
to
On Thu, 12 Oct 2000, gary wrote:
hi guys:
i have 2 question:
(1)is the split horizon avaiable in OSPF ,
yes
(2)in ospf over NBMA mode,there is Broadcast mode, i am confused,cos, NBMA is
non-broadcast access ,why still have Broadcast ability
it attempts to emulate a
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