On 12/05/2009, at 12:09 AM, <[email protected]> <ch...@lavin-
llc.com> wrote:
The problem I'm struggling with is how to transition the routes out
of OSPF so that iBGP is used to carry the traffic, thus reducing
OSPF based routes
to only be responsible for building the full iBGP mesh. Most of the
appropriate goodies are in place, like locked in router-id's and no
synch. But the
jenga-like configurations of redistribution and network statements
make for a mind bending exercise for trying to migrate to the ISP
Essentials formula.
Had a similar problem a few years back. Pete Templin's comments are
good. Our actual process was
* redist connected and static into iBGP at the customer edge
* check all loopbacks and point-to-points were in OSPF
* for each edge box
- for each connected or static route route
- check route is visible via BGP at the router reflectors
- remove from ospf on edge box
- check route is visible via BGP at the router reflectors :)
Slow and tedious process but a major migration was undertaken without
an impact.
David
...
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