Dual Internet Routes [7:5028]

2001-05-18 Thread Richard Tufaro

Hey all,

 My company has been annoyed by recent provider outages and wants to
start to use dual internet routes through the same ISP BUT different pops.
We are currently getting 2 Cisco 3640 routers with 128 of ram in each for
possible future FULL BGP routes, although currently we would only be getting
partial. My question is, does anyone have any advice or caveats about this
type of configuration (from the router side and the ISP side). Any help
would be much appreciated. Thanks.




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Re: Dual Internet Routes [7:5028]

2001-05-18 Thread Rashid Lohiya

Why not have a second connection going to another ISP, using diverse routing
on the cct?

You will not have too many single points of failure, ie. the exchange, the
ISP, etc. etc.

You could load balance between the 2 connections and each router/cct would
provide redundancy for the other.

Pls. correct me if I am wrong in any way.

Rashid


Richard Tufaro  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 Hey all,

  My company has been annoyed by recent provider outages and wants to
 start to use dual internet routes through the same ISP BUT different pops.
 We are currently getting 2 Cisco 3640 routers with 128 of ram in each for
 possible future FULL BGP routes, although currently we would only be
getting
 partial. My question is, does anyone have any advice or caveats about this
 type of configuration (from the router side and the ISP side). Any help
 would be much appreciated. Thanks.
 FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]




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Re: Dual Internet Routes [7:5028]

2001-05-18 Thread Adam Hickey

What type of businees does your company do?
Is there a reason to run BGP despite connecting to only 1 ISP?

Unless you are a transit AS or something similar, you can route all of your
internet traffic via static routes.

Adam Hickey
[EMAIL PROTECTED]
_
Before you criticize someone, make sure to walk a mile in their shoes.
That way, when you do criticize them, you're a mile away and you have their
shoes.


- Original Message -
From: Richard Tufaro 
To: 
Sent: Friday, May 18, 2001 10:42 AM
Subject: Dual Internet Routes [7:5028]


 Hey all,

  My company has been annoyed by recent provider outages and wants to
 start to use dual internet routes through the same ISP BUT different pops.
 We are currently getting 2 Cisco 3640 routers with 128 of ram in each for
 possible future FULL BGP routes, although currently we would only be
getting
 partial. My question is, does anyone have any advice or caveats about this
 type of configuration (from the router side and the ISP side). Any help
 would be much appreciated. Thanks.
 FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]




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Re: Dual Internet Routes [7:5028]

2001-05-18 Thread Richard Tufaro

My company is a pharmaceutical company that also is pushing for a large
scale e-commerce presence.

To my understanding the reason for running BGP on our side is because of the
2 pipes that we will have which will be running over the same carrier, but
the carrier has informed us that because we are going to different POPS we
would have to run partial BGP routes. This does not seem right to me. The
deal is not finalized and im really pushing to go to 2 different ISP'S. For
REAL redundancy. But as always if we get the so called redundancy thought
there network then it will be cheaper then going with the 2 different ISP's.
If we went with the 2 diff ISP's what kind of things would we be looking at?
Buying our own AS, and getting independent IP space but besides that any
caveats?

 Adam Hickey  05/18 2:20 PM 
What type of businees does your company do?
Is there a reason to run BGP despite connecting to only 1 ISP?

Unless you are a transit AS or something similar, you can route all of your
internet traffic via static routes.

Adam Hickey
[EMAIL PROTECTED] 
_
Before you criticize someone, make sure to walk a mile in their shoes.
That way, when you do criticize them, you're a mile away and you have their
shoes.


- Original Message -
From: Richard Tufaro 
To: 
Sent: Friday, May 18, 2001 10:42 AM
Subject: Dual Internet Routes [7:5028]


 Hey all,

  My company has been annoyed by recent provider outages and wants to
 start to use dual internet routes through the same ISP BUT different pops.
 We are currently getting 2 Cisco 3640 routers with 128 of ram in each for
 possible future FULL BGP routes, although currently we would only be
getting
 partial. My question is, does anyone have any advice or caveats about this
 type of configuration (from the router side and the ISP side). Any help
 would be much appreciated. Thanks.
 FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html 
 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]




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Re: Dual Internet Routes [7:5028]

2001-05-18 Thread Howard C. Berkowitz

Hey all,

  My company has been annoyed by recent provider outages and wants to
start to use dual internet routes through the same ISP BUT different pops.
We are currently getting 2 Cisco 3640 routers with 128 of ram in each for
possible future FULL BGP routes, although currently we would only be getting
partial. My question is, does anyone have any advice or caveats about this
type of configuration (from the router side and the ISP side). Any help
would be much appreciated. Thanks.


This will depend, in part, whether your address space is 
provider-independent or is part of your provider's allocation.  See 
RFCs 1998 and 2270.

In either case, the key is that you want to advertise your routes to 
the provider at both POPs, in a manner that lets the ISP know that 
all of your routes are reachable at both points, and, if possible, 
are to some extent load balanced.

Assume that your allocation is 192.0.2.0/23, and you can split your 
addresses so that the western part of your network has addresses in 
192.0.2.0/24 and the eastern part is in 192.0.3.0/24.

A simple technique is to advertise

 West BorderEast Border
 192.0.2.0/23   192.0.2.0/23
 192.0.2.0/24   192.0.3.0/24

An alternative would be

 West BorderEast Border
 192.0.2.0/24,MED=100   192.0.2.0/24, MED=200
 192.0.3.0/24,MED=200   192.0.3.0/24, MED=100

Whatever method you use, it MUST be coordinated with your provider.

As specified in RFC 1998, if you are multihomed to a single provider, 
and your address space is a subset of their allocation, mark your 
routes with the NO-EXPORT well-known community.




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Re: Dual Internet Routes [7:5028]

2001-05-18 Thread Brian

128 will not be enough for a full routing table within a couple months.

Brian Sonic Whalen
Success = Preparation + Opportunity


On Fri, 18 May 2001, Richard Tufaro wrote:

 Hey all,

  My company has been annoyed by recent provider outages and wants to
 start to use dual internet routes through the same ISP BUT different pops.
 We are currently getting 2 Cisco 3640 routers with 128 of ram in each for
 possible future FULL BGP routes, although currently we would only be
getting
 partial. My question is, does anyone have any advice or caveats about this
 type of configuration (from the router side and the ISP side). Any help
 would be much appreciated. Thanks.
 FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]




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