From: Sawal, Vijay (Vijay.Sawal@xxxxxxxxx)
Date: Wed Jul 26 2000 - 16:23:53 GMT-3
Here is the actual requirement:
A Single ISP has allocated IP addresses to his Customers who are single
and/or dual homed through his three POPs. this
ISP is basically a Tier-3. I want to advertise the Customer routes out of
the ISPs three Pops to the Internet. This is with a condition that none of
the routing updates will go beyond 24-bit mask.
Can I send the configure route aggregation with summary only for multihimed
Customers on multiple Exit points of this same ISP? Somehow I want to ensure
that whatever route advertisement goes out of the ISP should not have a
subnet Mask more than
24 bits.This is because the address allocation to Customer is not in
contiguous blocks and the route aggregation is not possible at the Customer
Router.
Can I send route update with Export Community and restricting the subnet
mask to 24-bit? I am just guessing!? I may be wrong, pl validate.
Vijay
-----Original Message-----
From: Rogell, Dennis [mailto:Dennis_Rogell@milgo.com]
Sent: Wednesday, July 26, 2000 2:38 PM
To: 'Sawal, Vijay'
Subject: RE: BGP route aggregation and redistribution
normally you would use the best path so if you are using more than one
router at the isp then please give me a diagram and tell me what you are
tryng to accomplish
Dennis Rogell
> -----Original Message-----
> From: Sawal, Vijay [SMTP:Vijay.Sawal@CWUSA.COM]
> Sent: Wednesday, July 26, 2000 10:37
> To: 'Rogell, Dennis'
> Cc: 'ccielab@groupstudy.com'
> Subject: RE: BGP route aggregation and redistribution
>
> Can I do this manual aggregation at the two ISP exit Routers?
>
>
> -----Original Message-----
> From: Rogell, Dennis [mailto:Dennis_Rogell@milgo.com]
> Sent: Wednesday, July 26, 2000 1:26 PM
> To: 'Sawal, Vijay'
> Subject: RE: BGP route aggregation and redistribution
>
>
> If you want to only advertise the aggregate use aggregate address summary
> only this will advertise the aggregate only.
> hope this helps
>
> Dennis Rogell
>
> > -----Original Message-----
> > From: Sawal, Vijay [SMTP:Vijay.Sawal@CWUSA.COM]
> > Sent: Wednesday, July 26, 2000 09:57
> > To: 'ccielab@groupstudy.com'
> > Subject: BGP route aggregation and redistribution
> >
> >
> > How can I advertise Customer BGP network into the Internet cloud via two
>
> > exit points of the same ISP. And the Customer networks should not be
> > advertised beyond /24. Unfortunately aggregation
> > is not possible for all the Customer routes at the Customer Router.
> >
> > Can I use a Route-map for outgoing BGP updates? Or Do I have any elegant
> > solution?
> >
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