[nsp] BGP load balancing

From: Dimitris Zisiadis (zisiadis@forthnet.gr)
Date: Fri Jan 23 1998 - 09:59:24 EST


 Hello all,

sorry if the question seems trivial to this list,
but i didn't find any specific information on
the CCO for a load balancing scheme between
two ASs with more than two routers involved (3/4).

 Here is the scenario:

     AS X AS Y

_________
                                                                       |
                 |
                                                  _________| B
   |
                                                 | |
                 |
                                                 |
|_________|
 _________ |
| |___________|
| A |
| |____________
|_________| |
                                                  |
_________
                                                  | |
                |
                                                  |________| C
   |
                                                                      |
                |

|_________|
 

      Router A belongs to AS X, while routers B and C belong to AS Y.

 Router A is to receive FULL routing from AS Y and have the two
connections to AS Y load balanced and backed up.

 One solution of course is to manualy configure the announcements
with prepends of AS X or to use two route mapped MED values for the
two connections, but it is very hard to keep it functional.
I was wondering if there is some other way around it.

 Regards

 Dimitris Zisiadis

                            



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