Hello groupstudy,
I've been banging my head against the wall and figured I would defer this
question to those of you more learned and experienced. Here is the the
scenario:
2 routers running BGP
Router 1 has a connection to ISP 1 and router 2 has a connection to ISP 2
Each receives full
ISP1 should advertise 1.1.1.x/16 AND 1.1.1.x/24 ?
alex
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=61096t=61095
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Report misconduct and
-
~From: Robert Fowler [mailto:[EMAIL PROTECTED]]
~Sent: Wednesday, January 15, 2003 9:32 AM
~To: [EMAIL PROTECTED]
~Subject: BGP load balancing questions [7:61095]
~
~
~Hello groupstudy,
~
~I've been banging my head against the wall and figured I would
~defer this
~question to those of you more
Hello groupstudy,
I've been banging my head against the wall and figured I would defer
this
question to those of you more learned and experienced. Here is the
the
scenario:
2 routers running BGP
Router 1 has a connection to ISP 1 and router 2 has a connection to
ISP 2
Each receives full
can buy and hardware loadbalancer from f5.
From: Robert Fowler
Date: 2003/01/15 Wed AM 09:31:49 EST
To: [EMAIL PROTECTED]
Subject: BGP load balancing questions [7:61095]
Hello groupstudy,
I've been banging my head against the wall and figured I would defer this
question to those
.
Clay
- Original Message -
From: Robert Fowler
To:
Sent: Wednesday, January 15, 2003 9:31 AM
Subject: BGP load balancing questions [7:61095]
Hello groupstudy,
I've been banging my head against the wall and figured I would defer this
question to those of you more learned
with this ...
clay
- Original Message -
From: Alex Muhin
To:
Sent: Wednesday, January 15, 2003 10:07 AM
Subject: RE: BGP load balancing questions [7:61095]
ISP1 should advertise 1.1.1.x/16 AND 1.1.1.x/24 ?
alex
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=6t=61095
ISP1 should advertise 1.1.1.x/16 AND 1.1.1.x/24 ?
alex
Yes, that's correct. If they don't advertise the more-specific prefix
along with their aggregate you'll have problems in a multihomed
situation such as that described earlier.
John
Message Posted at:
Fowler
Date: 2003/01/15 Wed AM 09:31:49 EST
To: [EMAIL PROTECTED]
Subject: BGP load balancing questions [7:61095]
Hello groupstudy,
I've been banging my head against the wall and figured I would defer
this
question to those of you more learned and experienced. Here is the
the
scenario
15, 2003 10:07 AM
Subject: RE: BGP load balancing questions [7:61095]
ISP1 should advertise 1.1.1.x/16 AND 1.1.1.x/24 ?
alex
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=61119t=61095
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FAQ, list archives, and subscription
I worked for them I'd never mention that item to a client,
especially in mixed company!
John
Greg Owens 1/15/03 9:06:28 AM
can buy and hardware loadbalancer from f5.
From: Robert Fowler
Date: 2003/01/15 Wed AM 09:31:49 EST
To: [EMAIL PROTECTED]
Subject: BGP load balancing questions
er UUNET if in the scenario ISP 1 =
Sprint
and ISP 2 = UUNET. I have first hand experience with this ...
clay
- Original Message -
From: Alex Muhin
To:
Sent: Wednesday, January 15, 2003 10:07 AM
Subject: RE: BGP load balancing questions [7:61095]
ISP1 should advertise 1.1.1.x/16 AND 1.
be misreading something here. I don't recall if this type
of scenario was in one of the BGP labs for BSCN.
I'll keep you posted of my own lab result.
Thanks.
Elmer
- Original Message -
From: jeff sicuranza
To:
Sent: Wednesday, May 22, 2002 2:46 PM
Subject: Re: BGP load balancing [7:44697]
Yes
something here. I don't recall if this type
of scenario was in one of the BGP labs for BSCN.
I'll keep you posted of my own lab result.
Thanks.
Elmer
- Original Message -
From: jeff sicuranza
To:
Sent: Wednesday, May 22, 2002 2:46 PM
Subject: Re: BGP load balancing [7:44697
Need some advices from BGP experts : Does BGP do load balancing by default?
Says there are 4 parallel paths between the source and destination, will
the traffic be distributed among the 4 paths? If it does not support load
balancing by default, how to turn it on? How many parallel paths can it
-source loopback
3. enter the static routes to be used for load-balancing
If there's something i'm forgetting, please correct my post.
HTH,
Elmer
- Original Message -
From:
To:
Sent: Wednesday, May 22, 2002 6:03 AM
Subject: Re: BGP load balancing [7:44697]
Need some advices from BGP experts
Yes it does if you are doing EBGP and your router has two or more directly
conneted links to your EBGP peer. The the default load balancing will work
if static routes or an IGP is used for your subnets linking your neighbors.
You see it is not BGP performing the load balancing but the normal
And add cef per-packet or per-destination
From: cebuano
Reply-To: cebuano
To: [EMAIL PROTECTED]
Subject: Re: BGP load balancing [7:44697]
Date: Wed, 22 May 2002 07:17:07 -0400
Maurice,
BGP defaults to using only the BEST path, hence ONE.
Check CCO for path determination in BGP.
The other
I love these how to load balance using BGP threads.
Everyone who wants to load balance across the internet should be aware
that you may be creating a situation where you are hurting your performance.
Lets say that you have two AS Paths that are the same length. How do you
know how many hops
, April 25, 2002 2:34 PM
To: [EMAIL PROTECTED]
Subject: RE: BGP Load Balancing Question [7:42469]
Inbound/Outbound loads are out of wack what part of the
BGP neigh stats
do you want to see?
I'm referring to simply 'sh ip bgp sum', as this will show the amount of
prefixes that you
]]
Sent: Thursday, April 25, 2002 2:34 PM
To: [EMAIL PROTECTED]
Subject: RE: BGP Load Balancing Question [7:42469]
Inbound/Outbound loads are out of wack what part of the
BGP neigh stats
do you want to see?
I'm referring to simply 'sh ip bgp sum', as this will show the amount
I am experiencing a similar problem, using one provider with two T1s.
Utilization appears to significantly favor one interface over
the other. I
realize there will be some variation, but considering its a
discrepancy of
75% vs. 3% (these are numbers from our provider) I've
talked
-
From: Lupi, Guy [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 24, 2002 5:38 PM
To: [EMAIL PROTECTED]
Subject: RE: BGP Load Balancing Question [7:42469]
Are the t1's connected to different routers in the providers POP, or to
geographically diverse POP's? Is the IP space your own ARIN
]]
Sent: Thursday, April 25, 2002 7:56 AM
To: [EMAIL PROTECTED]
Subject: RE: BGP Load Balancing Question [7:42469]
I'm not sure I understand what you are describing. Are you saying that the
BGP routes you receive from your provider are mainly coming over one link
rather than the other? Or, are you
To: [EMAIL PROTECTED]
Subject: RE: BGP Load Balancing Question [7:42469]
Are the t1's connected to different routers in the providers POP, or to
geographically diverse POP's? Is the IP space your own ARIN assigned space
or the providers? Do you take full bgp routes or just a default or partial
CTS=up
-Original Message-
From: Kane, Christopher A. [mailto:[EMAIL PROTECTED]]
Sent: Thursday, April 25, 2002 7:56 AM
To: [EMAIL PROTECTED]
Subject: RE: BGP Load Balancing Question [7:42469]
I'm not sure I understand what you are describing. Are you
saying that the
BGP routes
To: [EMAIL PROTECTED]
Subject: RE: BGP Load Balancing Question [7:42469]
Inbound/Outbound loads are out of wack what part of the
BGP neigh stats
do you want to see?
I'm referring to simply 'sh ip bgp sum', as this will show the amount of
prefixes that you receive on each connection. So
I am experiencing a similar problem, using one provider with two T1s.
Utilization appears to significantly favor one interface over the other. I
realize there will be some variation, but considering its a discrepancy of
75% vs. 3% (these are numbers from our provider) I've talked to the
: BGP Load Balancing Question [7:42469]
~
~
~I am experiencing a similar problem, using one provider with two T1s.
~Utilization appears to significantly favor one interface over
~the other. I
~realize there will be some variation, but considering its a
~discrepancy of
~75% vs. 3% (these are numbers
I would strongly suggest the use of a Packetshaper to do what you are
wanting to do. Let the router do the routing and offload the load of what
you are wanting to do to another device that can do the rate-limiting or
bandwidth limit.
Mario
Message Posted at:
PROTECTED]]
Sent: Wednesday, April 03, 2002 10:08 AM
To: [EMAIL PROTECTED]
Subject: Re: BGP Load-Balancing with 2 providers...Possible?? [7:40242]
I'm assuming your getting full routes from each provider. You will
most likely get a rough load balance based on the randomness of the
sites your
t
makes this work cleaner? Some other product that is all-encompassing and
functions as a magic bullet for this ...
Thanks!
TJ
-Original Message-
From: MADMAN [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 03, 2002 10:08 AM
To: [EMAIL PROTECTED]
Subject: Re: BGP Load-B
sure there are examples of this in
Sam Halabi's book Internet Routing Architectures.
HTH,
Kent
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Cisco Nuts
Sent: Tuesday, April 02, 2002 2:11 PM
To: [EMAIL PROTECTED]
Subject: BGP Load-Balancing with 2
Thank you all..
From: MADMAN Reply-To: [EMAIL PROTECTED] To: Cisco Nuts CC:
[EMAIL PROTECTED] Subject: Re: BGP Load-Balancing with 2
providers...Possible?? [7:40242] Date: Wed, 03 Apr 2002 09:08:20 -0600
I'm assuming your getting full routes from each provider. You will
most likely get
I'm assuming your getting full routes from each provider. You will
most likely get a rough load balance based on the randomness of the
sites your users are connecting to and your upstreams a roughly equal,
i.e. 90% of your routes are not learned via provider A. But your not
going to get a 50/50
Hello,
Is it possible to load-balance BGP traffic with 2 service providers...I know
it is possible to load balance with 2 circuits to the same provider using
ebgp-multihop and update-source and cef but with 2 circuits to 2 different
providers??
Thank you for your help.
: BGP load-balancing [7:25377]
create a loopback interface on both the routers
Peer using the loopback interfaces using EBGP
MUlti-hop
configure two static routes to reach the loopback
interfaces to introduce two equal costs paths
regards,
suaveguru
- Original Message -
From: suaveguru
To: Mohammed Saro ;
Sent: Tuesday, November 06, 2001 4:51 PM
Subject: Re: BGP load-balancing [7:25377]
create a loopback interface on both the routers
Peer using the loopback interfaces using EBGP
MUlti-hop
configure
thanks for your input, if I really wish to offload
outgoing traffic which method would be appropriate?
regards,
suaveguru
--- Chris White wrote:
On Tue, 30 Oct 2001, suaveguru wrote:
What if contacting the provider to announce the
more
specific /24 is not an option and also getting
On Tue, 30 Oct 2001, suaveguru wrote:
What if contacting the provider to announce the more
specific /24 is not an option and also getting an AS#,
will buying a transmit carrier from the satellite
provider solve this problem?
Not unless you need to offload outgoing traffic...If you had
IP's
On Tue, 30 Oct 2001, suaveguru wrote:
What if contacting the provider to announce the more
specific /24 is not an option and also getting an AS#,
will buying a transmit carrier from the satellite
provider solve this problem?
Not unless you need to offload outgoing traffic...If you had
IP's
On Tue, 30 Oct 2001, suaveguru wrote:
situation goes this way
R1Receive-Only---R2-Terrestrial gw
|
|
Transmit-Only
Problem :
customer has only one block of Class C
What if contacting the provider to announce the more
specific /24 is not an option and also getting an AS#,
will buying a transmit carrier from the satellite
provider solve this problem?
thanks for your input anyway
regards,
suaveguru
--- Chris White wrote:
On Tue, 30 Oct 2001, suaveguru
situation goes this way
R1Receive-Only---R2-Terrestrial gw
|
|
Transmit-Only
In the diagram as shown R1 is a router running on
Service Provider side
R2 is a router running on
.
-ej
-Original Message-
From: Rashid Lohiya [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 09, 2001 5:55 PM
To: [EMAIL PROTECTED]
Subject: BGP - Load Balancing [7:3903]
My first BGP project and I am lost!
I am looking for a brief overview of how load
balancing
[mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 09, 2001 5:55 PM
To: [EMAIL PROTECTED]
Subject: BGP - Load Balancing [7:3903]
My first BGP project and I am lost!
I am looking for a brief overview of how load
balancing is configured using
BGP Multi-homed connections.
I thought a company
]
---
This email is composed of 82% post consumer recycled data bits
---
- Original Message -
From: Rashid Lohiya
To:
Sent: Wednesday, May 09, 2001 2:54 PM
Subject: BGP - Load Balancing [7:3903]
My first BGP
advertisements of the private and experimental space.
-ej
-Original Message-
From: Rashid Lohiya [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 09, 2001 5:55 PM
To: [EMAIL PROTECTED]
Subject: BGP - Load Balancing [7:3903]
My first BGP project and I am lost!
I am looking for a brief overview
of times and it all works out very well.
Jedi
- Original Message -
From: Rashid Lohiya
To:
Sent: Wednesday, May 09, 2001 5:54 PM
Subject: BGP - Load Balancing [7:3903]
My first BGP project and I am lost!
I am looking for a brief overview of how load balancing is configured
using
BGP
My first BGP project and I am lost!
I am looking for a brief overview of how load balancing is configured using
BGP Multi-homed connections.
I thought a company with 2 ISP connections would use one link and have the
other available as backup only. But from what I understand from the client
CTED]
Sent: Wednesday, November 15, 2000 4:25 AM
Subject: BGP load balancing
Hi all,
I want to know that does command ebgp-multihop provide load balancing over
ATM for a router, also how can I configure ebgp to control incoming
traffic
from my ISP
Regards
Andy
m: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Andy
Sent: Tuesday, November 14, 2000 7:26 PM
To: [EMAIL PROTECTED]
Subject: BGP load balancing
Hi all,
I want to know that does command ebgp-multihop provide load balancing over
ATM for a router, also how can I configure ebgp to co
to:[EMAIL PROTECTED]] On Behalf Of
Andy
Sent: Tuesday, November 14, 2000 7:26 PM
To: [EMAIL PROTECTED]
Subject: BGP load balancing
Hi all,
I want to know that does command ebgp-multihop provide load balancing
over
ATM for a router, also how can I configure ebgp to cont
BGP cannot load balance by default, taking into effect the bandwidth
parameter. However, ther is a good workaround for this.
have a look at this site, http://www.cisco.com/warp/public/459/21.html
It explains BGP load balancing very well
Geoffrey
"Brian" wrote in message [EMAIL
Can BGP really "load balance"? I have 2 ISP's with unequal pipes to them
(one is 768k the other is full T1. It's a long story but that is what I have
to work with for the forseeable future). I want to truely balance across
the links. I know I can set the route maps and work with weight, local
Can BGP really "load balance"? I have 2 ISP's with unequal pipes to them
(one is 768k the other is full T1. It's a long story but that is what I have
to work with for the forseeable future). I want to truely balance across
the links. I know I can set the route maps and work with weight, local
multihomig
redundant
load balancing
optimized routes
only
if you`re thinking about only load balancing
inside(lan) to outside(internet) traffic.
Can BGP really "load balance"? I have 2 ISP's with unequal pipes to them
(one is 768k the other is full T1. It's a long story but that is
i have mistook to have send privious e-mail unfinished... sorry.
anyway, you need to take into consideration below.
are you using PA(Provider Agrigate) or PI(Provider Independent)
load balancing
outside - inside traffic
inside - outside traffic
and are you really need to use BGP ?
only
On Thu, 26 Oct 2000, Doug Guth wrote:
Can BGP really "load balance"? I have 2 ISP's with unequal pipes to them
(one is 768k the other is full T1. It's a long story but that is what I have
to work with for the forseeable future). I want to truely balance across
the links. I know I can set
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