Re: BGP over satellite link

[Stephane Bortzmeyer <bortzmeyer at gitoyen.net>]

On Sun, Apr 06, 2003 at 12:45:12PM -0400,
 Randy Bush <randy at psg.com> wrote 
 a message of 31 lines which said:

> > BGP multihop is almost _never_ a good choice.
> 
> i can think of two uses
>   o a feed to a distant research measuring point
>   o to fool a router pair to load balance across multiple
>     parallel links

There is a third use, common in Africa, where specialized hardware can
be difficult/expensive to find. The router that connects you to the
leased line has not enough resources (RAM...) to run BGP and the
router that has enough resources does not have the specialized card
(for instance, a small Cisco with a synchronous interface and a
PC/Unix with the RAM and Zebra but without a Sangoma or Cyclades
card).
 
+-----------------------+                     +------------+   +---------+
|  Upstream             |  Leased line        |   Entry    |---| BGP     |
|  router               |---------------------|   router   |   | router  |
+-----------------------+                     +------------+   +---------+
             ^                                                     ^
             |                                                     |
             +-----------------------------------------------------+
                 You'll need eBGP multihop between these two 


-----
This is the afnog mailing list, managed by Majordomo 1.94.5

To send a message to this list, e-mail afnog at afnog.org
To send a request to majordomo, e-mail majordomo at afnog.org and put
your request in the body of the message (i.e use "help" for help)

This list is maintained by owner-afnog at afnog.org