Hi All,
I just wanna know if 1600 routers support BGP. If yes,
then which IOS version and what are the memory
requirements. I've heard that BGP is rather a platform
dependent routing protocol. Is this true? I've tried
12.0 IP and IP/PLUS versions and it says 'Unknown
Routing Protoc
I have two core routers. One of them has two connection to the internet and
the other one has one. How can I setup BGP so that I can utilize all three
of the links? Thanks
Router A -isp1
\-isp2
Router B -isp1
Hello,
Does anyone have any suggestions for a good CBT or Book or something to
learn more about BGP? I read a book on BGP, but it talked about
confederations, communities and bgp in general. The ACRC book I have
only grazes the subject I was hoping for a book or something that would
go more in
Does any one know where I can find a recommendation
on minimum requirements for running BGP between two ISP
Stacy Vacca
Hampshire Technology
[EMAIL PROTECTED]
Does any one know where I can find a recommendation
on minimum requirements for running BGP between two ISP
Stacy Vacca
Hampshire Technology
[EMAIL PROTECTED]
Can someone answer this question - How do you scale BGP? This was one of
the question appeared in CCIE written.
Thanks
RamanG
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http
Title: BGP !!!
I was always hearing about the great BGP as a very scalar protocol with lots of advantages, and suddenly I was a little shocked to learn that it was a variant of the distance-vector-protocol
I have read many books praising the qualities of link-state protocols and
> I was always hearing about the great BGP as a very scalar
>protocol with lots of advantages, and suddenly I was a little
>shocked to learn that it was a variant of the
>distance-vector-protocol
Yes. As is the DUAL algorithm of EIGRP and the area 0.0.0.0 path
computa
Is BGP DV, or LS?
=
ciscocabanaboy, CCNP-Voice, CCDP, MCSE, CNX, A+, N+, I-net+, BOFH...
__
Do You Yahoo!?
Kick off your party with Yahoo! Invites.
http://invites.yahoo.com/
___
UPDATED Posting Guidelines
Can you take a class "B" address, split it in half, and advertise each
half from two different AS's using BGP version 4? If so, what are the
pro's and con's?
thanks
example:
128.160.1.x to 128.160.150.x --AS 4857
128.160.151.x
On Tue, Jul 25, 2000 at 10:44:38AM -0400, Howard C. Berkowitz wrote:
> Aside from personal curiosity and planning the next BGP paper for
> CertZone, I have the ulterior motive of writing a proposal for an
> Internet Routing book, that is more operational-environment, less
> confi
I have this question on my cisco prep exam fill-in-the-blank. Please =
help.
A BGP router reports all activate routes based from BGP __. This is =
the default policy action for BGP routers.
A. to all BGP peers
B. to all IBGP peers
C. to all EBGP peers
D. and the IGP's configured o
I would be really surprised if the 160* series supports the current 128
soon to be 256 megs required for a full routing table.
Brian Whalen
On Sun, 11 Mar 2001, Muhammed Khalilullah wrote:
> Hi All,
> I just wanna know if 1600 routers support BGP. If yes,
> then which IOS ve
ust wanna know if 1600 routers support BGP. If yes,
> then which IOS version and what are the memory
> requirements. I've heard that BGP is rather a platform
> dependent routing protocol. Is this true? I've tried
> 12.0 IP and IP/PLUS versions and it says 'Unknown
> Ro
>From: Brian Reply-To: Brian To: Muhammed Khalilullah CC: Subject: Re: BGP !
>Date: Sun, 11 Mar 2001 19:53:15 -0800 (PST)
>
>I would be really surprised if the 160* series supports the current 128
>soon to be 256 megs required for a full routing table.
Did i misread the q
You didn't misread, its just that even if it did support it, due to the max
dram of 18 or 24 megs, for it to work he'd need to do something like listen
to just each of his provider's routes. I would definitely also recommend
against this as a BGP router. It is intended as
>From: "Brian" <[EMAIL PROTECTED]>
>Reply-To: "Brian" <[EMAIL PROTECTED]>
>To: "Robert Nelson-Cox" <[EMAIL PROTECTED]>
>CC: <[EMAIL PROTECTED]>
>Subject: Re: BGP !
>Date: Sun, 11 Mar 2001 23:49:07 -0800
>
>You didn
>I would be really surprised if the 160* series supports the current 128
>soon to be 256 megs required for a full routing table.
>
> Brian Whalen
There are two issues here. One is which, if any, versions of IOS for
the 1600 platform support BGP.
Second, if the goal is
[mailto:[EMAIL PROTECTED]]
Sent: Sunday, March 11, 2001 9:51 PM
To: [EMAIL PROTECTED]
Subject: BGP !
Hi All,
I just wanna know if 1600 routers support BGP. If yes,
then which IOS version and what are the memory
requirements. I've heard that BGP is rather a platform
dependent routing protoco
All,
I have recently been on a BGP course. I am slightly unsure about the effects
of the command below,
clear ip bgp *
Looking at the command ref on CCO, it suggests that it causes the Router to
drop all of its neighbor BGP sessions.
On the course, the instructor said there were more
We are now connected to multiple upstream providers (UUNET, ONYX, TELEGLOBE,
local ISP). After ARIN's assignment of ASN, we'll now be implmenting BGP.
Can you comment on my diagram and can you provide me the best BGP config I
have to implement with security cons
Setup an IBGP session between them.
Andy
On Mon, 27 Nov 2000, Var1abl3 Var1abl3 wrote:
> I have two core routers. One of them has two connection to the internet and
> the other one has one. How can I setup BGP so that I can utilize all three
> of the links? Thanks
>
my company is an internet-provider in austria.
the following situation.
one of our customers has his own network ( with own AS Number ) - currently
he is connected to another ISP. but plans to connect to our network soon..
the problem in here is : if he connects to another ISP - he intends to do
Try this:
BGP:
- Overview
<http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/bgp.htm>
- case studies <http://www.cisco.com/warp/public/459/bgp-toc.html>
- Using for Interdomain Routing
<http://cisco.com/univercd/cc/td/doc/cisintwk/ics/icsbgp4.htm>
- Technical Tips <
Title: RE: BGP
Have you heard of the CiscoPress book by Sam Halabi called Internet Routing Architectures, he is the BGP Guru.
-Original Message-
From: Andre Fecteau [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 05, 2000 8:00 PM
To: [EMAIL PROTECTED]
Subject: BGP
Hello
Halabi's book is a good reference. I would also pay a lot of attention to the
following
*RFC 1771 BGP v4
*RFC 1997 BGP Communities
*RFC 2796 BGP Route Reflection
*RFC 1965 BGP AS Confederations
*RFC 1998 BGP Communities for Multihoming
I would also read Ci
Halabi's book is a good reference. I would also pay a lot of attention to the
following
*RFC 1771 BGP v4
*RFC 1997 BGP Communities
*RFC 2796 BGP Route Reflection
*RFC 1965 BGP AS Confederations
*RFC 1998 BGP Communities for Multihoming
I would also read Ci
I bought it myself yesterday. Quite a book!
I wonder if there is the equivalent for Frame Relay and OSPF.
Pierre-Alex
-Original Message-
From: Andre Fecteau [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 11, 2000 11:55 AM
To: Pierre-Alex
Subject: Re: BGP
I of course haven&#
; I bought it myself yesterday. Quite a book!
> I wonder if there is the equivalent for Frame Relay and OSPF.
>
> Pierre-Alex
>
> -Original Message-
> From: Andre Fecteau [mailto:[EMAIL PROTECTED]]
> Sent: Monday, December 11, 2000 11:55 AM
> To: Pierre-Alex
> Subj
OSPF Network Design Solutions by Tom Thomas
-Original Message-
From: Pierre-Alex
To: Andre Fecteau; Cisco
Sent: 12/11/00 11:05 PM
Subject: RE: BGP
I bought it myself yesterday. Quite a book!
I wonder if there is the equivalent for Frame Relay and OSPF.
Pierre-Alex
-Original
Would someone be so kind as to explain why BGP speakers within a common =
AS=20
need to be fully meshed please.
I am reading some Cisco documentation that is attached to this message.
The paragraphs in red are what is not quite clear to me.
Thanks a lot
tatic
routes but now i plan to go for BGP but i want load balancing and link
redundancy. for IGP i want to use OSPF.
Can it possible ?
How ?
(ISP1Router)-FastEthernet-(RouterA)-4MB
Serial-(RouterB)-2Mb Serial-(RouterC)2Mb
Serial(ISP2Router)
|
2Mb S
We have two connections to ISPs, but only one is running BGP at this moment
(waiting for Verio to get off of their hineys.) I have "neighbor x.x.x.x
weight 1000" configured for my lone peer. When I do "show ip bgp",
shouldn't every single route have a weight of 1000?
>From Reading the RFC, it seems the the Multi-Exit-Discriminator and the
Local-Preference fields do the same thing. Additionally, it appears that
they are not redistributed outside of their Home A/s.
Questions:
1. What's the difference between them?
2. Do they do the same thing?
3. How do you
Hi all,
Is there a way by using BGP dampeing that we can make
bgp advertise a route when the route is not available?
I understand, normally only flaping has something to
do with dampening, just want to find out if I play
with those penalty configure of dampening can I make
bgp advertise a
Hi,
I have local and global connection to Internet.
When I trace from local site to internal network, it passes through
local connection, and when I trace from global site to internal network,
it can pass through global connection. But the strange thing is when I
trace from internal network to lo
oof it size,
more so it seems to indicate that its size is a vendor proprietary value
from 1654
"The exact value of the ConnectRetry timer is a local matter, but should be
sufficiently large to allow TCP initialization."
If you know the answer, where did you get it from?
I have the
oof it size,
more so it seems to indicate that its size is a vendor proprietary value
from 1654
"The exact value of the ConnectRetry timer is a local matter, but should be
sufficiently large to allow TCP initialization."
If you know the answer, where did you get it from?
I have the
Does anyone here peer with Verizon or work for the NOC. These guys are
telling me that I can't advertise an address block that doesn't belong to
them. So, what the hell is the point of a BGP session if I can't advertise
the same address through 2 or more providers. Also, I pointe
ok, so I'm trying to implement some BGP routing for
the first time. I've read through the advanced IP network design,
Internet Routing Architectures, the RFCs, and a
couple other books on BGP. But as we all know, none of this compares to
good experience. So, before I
ok, so I'm trying to implement some BGP routing for
the first time. I've read through the advanced IP network design,
Internet Routing Architectures, the RFCs, and a
couple other books on BGP. But as we all know, none of this compares to
good experience. So, before I
Hi Group,
Anybody heard about Endless BGP Convergence Problem in Cisco IOS
Software Releases. I am multihomed to two ISP. My two routers speak to each other
with
iBGP. And one of my routeur, that is version Version 12.1(1)E3, EARLY DEPLOYMENT
RELEASE SOFTWARE, kept receiving BGP UPDATE from
Dear Group,
Who can tell me the following concept:
. A Optional transitive
B. Mandatory transitive
C. Well-known mandatory
D. Optional nontransitive
E. Well-known discretionary
TIA
Dean
_
FAQ, list archives, and subscription info: http://www.groupstu
A BGP speaker must never advertise an address of a peer to that peer as a
NEXT_HOP , for a route that the speaker is originating.
Can I anyone explain it.
Thanks
Azhar Soomro
Get free email and a permanent address at http
can anyone recommend a book that has extensive coverage of BGP? Thanks!
Kenneth
_
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Router A
neighbor 2.2.2.2 distribute-list 1 out
access-list 1 deny 160.10.0.0 0.0.255.255
In this case router A wants to deny updates for
network 160.0.0.0 propagated from router b (2.2.2.2)
to router a . But why does it say OUT instead of IN,
in the distribute-list ??
Thanks
Alec
_
I trying to add redundency to my network at work (I work for a very small
local ISP) and I'd like to run BGP on this router so that if line A dies to
upstream provider A, line B will take over to upstream provider B.
What is the least requirement for BGP? Someone told me I needed at le
Please excuse any ignorance if this conveys any but I had to ask this question
somewhere and why not ask people who have a clue.
I thought up a scenario and wanted to know any input of whether or not this could
happen. Any help would be appreciated.
-- Sample
terms
Remember if Someone e-mails you direct, it will not have the footers.
Paul
- Original Message -
From: "ElephantChild" <[EMAIL PROTECTED]>
To: "Stacy Vacca" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Saturday, Aug
What is the minimum required for pass in the New CCNA 2.0
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
Report misconduct and Nondisclosure violations to [EMAIL PROTECT
using route reflectors and confederation i guess but you need to be mroe
specific about the question.
Regards
Atif
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
RamanG
Sent: Thursday, August 17, 2000 5:34 AM
To: cisco GroupStudy
Subject: BGP
Can
Hi guys/Gals
I have tutroial for BGP anyone wants it send me an email.
Regards,
amir
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
Report misconduct and Nondisclosure
It appears that the BSCN part of CCNP is the only course that focuses on
BGP. According to the course outline on Cisco's site anyway. Can anyone
confirm that?
Dave
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives
Would someone be so kind as to explain why BGP speakers within a common AS
need to be fully meshed please.
I am reading some Cisco documentation that is attached to this message.
The paragraphs in red are what is not quite clear to me.
Thanks a lot
Would someone be so kind as to explain why BGP speakers within a common AS
need to be fully meshed please.
I am reading some Cisco documentation that is attached to this message.
The paragraphs in red are what is not quite clear to me.
Thanks a lot
Hello everyone:
I am studying for the routing 2.0 exam.
Does any one have information on the following:
(1) the scalability problems associated with internal BGP.
I know that IBGP speakers have to be fully meshed. I am not too clear on the
reason behind this requirement.
(2) Redistribution
hi Anyone knows any solution to this matter :
problem goes this way :
Sometimes my in and out transfer rate went down to zero for a while. You can
see the attachment.
I checked my router log file and there wasn't any interface down.
But I checked the BGP session was down.
Neighbor
hi guys and gals,
I got a simple question to ask, it is necessary to use BGP to connect to an
ISP if you have different policy requirements than the ISP , in particular
can anyone tell me what you mean by different policy
Jason
___
UPDATED Posting Guidelines
Hello, Dear friends,
I am studying BGP. Says on book,
when the routing policy that will be implemented in the autonomous system is
consistent with policy implemented in the ISP autonomous system, the BGP can be
replaced by a combination of static routes and default networks, while
Title: BGP !!!
Hi,
First of all BGP is NOT distance vector protocol nor link state, it is a path
vector protocol.
Second
it is not a routing protocol, routing tables and bgp tables are two different
thing.
I hope
it clears some things.
Gil
CCNA/CCDA
-Original Message
Hi,
BGP is used to create inter domain free loop routing between AS.
It uses Path Vector as its metric. It carries the number of the AS as it
traverse the network to avoid loops. Hope this helps you.
-Subbi.
Raees Ahmed Shaikh wrote:
>
>
> I was always hearing about
Hello,
i'm trying to solve the following problem:
R1 and R2 are talking bgp
R1 is sending R2 the follwing subnets:
1.0.0.0/10
1.64.0.0/10
1.128.0.0/10
1.192.0.0/10
is there a way for R1 to auto-summarize these subnets without specifying a
summary address (i mean to autosummarize any subne
hi Anyone can help me with the problems below :
Hi,
The configuration file is attached.
For two days the link was down because the some problem in local line. Now
it was set right. After that the bgp link came up and worked fine for 90
mins. After there is no data transfer in this link. By the
Hi there, how can I simulate BGP on two routers in a lab. To learn it, what
kinds of routers do i need, I have looked around but not been able to find a
sample book or any instructions on how to do it. Please suggest any books
other then Halabi's book.
Farooq Ali
Network Eng
Both, or neither. BGP is commonly referred to as a "Path Vector" protocol.
See RFC1771 "A Border Gateway Protocol":
http://www.faqs.org/rfcs/rfc1771.html
See http://www.itprc.com/routing.htm for several links to BGP tutorials.
Irwin
-Original Message-
From: cis
No.
-Original Message-
From: cisco cabanaboy [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 26, 2000 10:59 AM
To: [EMAIL PROTECTED]
Subject: BGP
Is BGP DV, or LS?
=
ciscocabanaboy, CCNP-Voice, CCDP, MCSE, CNX, A+, N+, I-net+, BOFH
>Is BGP DV, or LS?
Not really either. It's Path Vector, more like a source routing
method. It derives from DV, but has significant differences.
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscript
nice question.
I would say BGP is way too complicated to be a DV protocol.
clipped from: http://www.freesoft.org/CIE/Topics/117.htm
-Distance-Vector Routing Protocols
This type of routing protocol requires that each router simply inform its
neighbors of its routing table.
The way BGP informs
e the need for route loop detection as loops
could not exist if all devices in the network have an identical view of that
network.
In my mind, though BGP doesn't neatly fall into either category being
labeled as a path-vector routing protocol, it would generally be considered
more of a
route loop detection as loops
>could not exist if all devices in the network have an identical view of that
>network.
>
>In my mind, though BGP doesn't neatly fall into either category being
>labeled as a path-vector routing protocol, it would generally be considered
>more of
would send them to you?
And second what if you did have two ISPs for
redundancy (let's say for a critical web server) would you then have to have
you're own Internic assigned AS number so you could run BGP to "advertise" to
the Internet that you have more than one route to your
Hello,
My customer wants to use 2 ISPs but he doesn't want to
run BGP. Can I do the following:
1. Have 2 ISPs put static route, pointing to my
customer, in their routers, one of them has lower
distance. And have ISPs advertise my customer's
routes.
2. Configure 2 default gateway on m
Neither BGP is a Path Vectoring Protocol. Distance Vector and Link State
are terms for Interior Gateway Protocols.
Gerwin
-Original Message-
From: cisco cabanaboy [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 26, 2000 7:59 PM
To: [EMAIL PROTECTED]
Subject: BGP
Is BGP DV, or LS
Hellow group!!
According to cisco press book, when company has two connections active to
two different ISPs, BGP should be used.
Could anybody tell me what is the result of connecting two active
connections to two different ISPs?
I know that one connection should be used as a backup line only
ED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Can you take a class "B" address, split it in half, and advertise each
> half from two different AS's using BGP version 4? If so, what are the
> pro's and con's?
>
> thanks
>
&g
te in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Can you take a class "B" address, split it in half, and advertise each
> > half from two different AS's using BGP version 4? If so, what are the
> > pro's
gt; [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Can you take a class "B" address, split it in half, and advertise each
> > half from two different AS's using BGP version 4? If so, what are the
> > pro's and con's?
like this:
router bgp 65535
!
!
!
neighbor 1.1.1.1 remote-as 1
neighbor 1.1.1.1 distribute-list 5 out
neighbor 2.2.2.2 remote-as 2
neighbor 2.2.2.2 distribute-list 6 out
!
!
!
!
access-list 5 permit 128.60.128.0 0.0.127.0
access-list 6 permit 128.60.0.0 0.0.127.0
At least that's
My former employer (an ISP) had BGP peering with our
upstream provider(Telco). As I understand it so far,
BGP4 is used to advertise routes between autonomous
systems. One day I ran a web-based traceroute to my
old haunt and it showed them having the same
autonomous system number as our bandwidth
Does anyone know how can I setup a BGP network to test my BGP dampening
setting in the routers ?
Rgds
begin:vcard
n:Lee;Wallace
tel;fax:25906443
tel;work:28622682
x-mozilla-html:FALSE
org:Netstar (Hong Kong) Limited
adr:;;
version:2.1
email;internet:[EMAIL PROTECTED]
title:Network
It seems that I cannot get me 134.141.11.0/24 network redistributed into
OSPF. If you look at my router 3 and 4 configs I setup the route-map and
redistribution the same. 192.168.253.0/24 gets propogated into OSPF as an
E2 route just like I wanted but the 134.141.11.0 doesn't. What am I
missing
Cisco recommends advertising an internal network into a BGP using a Static
Route.
How would the static route of
ip route 148.132.0.0 0.0.255.255 null 0
be able to route the network on the internal network. The null 0 would drop
the packet from being routed. The Cisco White paper on BGP says
Sorry for the pun.
I am currently looking at getting a second ISP for failover and
load-balancing. However I would prefer not using BGP if at all possible.
Any suggestions would be greatly appreciated.
John
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=5007&am
>Sorry for the pun.
>
>
>
>I am currently looking at getting a second ISP for failover and
>load-balancing. However I would prefer not using BGP if at all possible.
>Any suggestions would be greatly appreciated.
>
>
>John
>
With two ISPs, you really tend to n
BGP RULES ! ! !
Try it you'll like it.
Darel R Graham
-Original Message-
From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 18, 2001 2:01 PM
To: [EMAIL PROTECTED]
Subject: Re: To BGP or not to BGP [7:5007]
>Sorry for the pun.
>
and
> load-balancing. However I would prefer not using BGP if at all possible.
> Any suggestions would be greatly appreciated.
>
>
>
> John
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure vi
I built the bgp lab on page 302 of halabi's book (Internet Routing
Architectures).If you do not have the book, youmay still be able to answer
the question. A simple diagram is as follows
RTA-RTF ===AS3
| \
| \
We have connections to Sprint and Verio and I had BGP up and running with
Sprint for a couple of weeks. It appeared to me that they were advertising
our specific /24, 205.243.23.0, along with the rest of their advertisements.
Today, I turned up a BGP session with Verio, again just advertising
I'm trying to figure out how some of this works in the real world, so I'll
provide a real example to start with. I just now did this on our router
that is multihomed to Sprint and Verio:
OurRouter#sho ip bgp 192.146.214.0
BGP routing table entry for 192
I am testing BGP in a lab
-- -
| RA |--| RB|
-- -
1) Router A has networks 155.134.1.x, 2.x, 3.x and 4.x beind it
2) Router B has networks 128.128.1.x, 2.x, 129.129.1.x, 2.x, 130.130.1.x
behind it
Router_A#
router bgp 400
network
I would choose D , correct me if I am wrong
--- David Tran <[EMAIL PROTECTED]> wrote:
> I have this question on my cisco prep exam
> fill-in-the-blank. Please =
> help.
>
> A BGP router reports all activate routes based from
> BGP __. This is =
> the default po
>I would choose D , correct me if I am wrong
>--- David Tran <[EMAIL PROTECTED]> wrote:
>> I have this question on my cisco prep exam
>> fill-in-the-blank. Please =
>> help.
>>
>> A BGP router reports all activate routes based from
>> BGP
I sent this to the originator only...
-Original Message-
From: Andrew Cook [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 12, 2001 3:52 PM
To: David Tran
Subject: RE: bgp questions
I would say the answer is C. BGP will not send routes learned from internal
peers to other internal
Yuck, really bad question. No frame of reference, no nothin. What is a
activate route anyway? Active route?
I think the key to answering this question is the question: when would BGP
not report an active route? When BGP and the IGP are not in sync, then an
active route would not be reported
They really need to start wording these questions better!!
-Original Message-
From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 14, 2001 3:27 AM
To: [EMAIL PROTECTED]
Subject: Re: bgp questions
>I would choose D , correct me if I am wrong
>--- Davi
Correct me if I'm wrong, but the only situation that bgp cares about IGP's
synchronization
is when bgp is explicitly configured to announce networks (i.e network
x.x.x.x mask x.x.x.x) and it would have to check the igp to see if there
is a valid route to that network. This can be ove
mes into play when a BGP route is learned from an iBGP
> peer. If you are the origniator of the route you must have an IGP route.
> Disabling synchonization won't affect the originator of the route.
>
> Brian Dennis
> CCIE #2210 (R&S)(ISP/Dial)
> CCSI #98640
>
>
Sychonization only comes into play when a BGP route is learned from an iBGP
peer. If you are the origniator of the route you must have an IGP route.
Disabling synchonization won't affect the originator of the route.
Brian Dennis
CCIE #2210 (R&S)(ISP/Dial)
CCSI #98640
-Origina
Correct but also remember that it's only for routes received from iBGP peers
not eBGP peers.
There really is a lot of confusion about when to use or not use
synchronization much less what routes it affects. I spend extra time in the
Advanced BGP class that I teach ensuring that the stu
In my opinion if all that you are running are BGP
whether it be IBGP or EBGP then there is no need for
synchronisation so add no synchronisation in
otherwise if you are running another igp example ospf
etc. then in order to speed up process of convergence
between igp and bgp I would add in no
1 - 100 of 1777 matches
Mail list logo
