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Notes:


Using the IGP to carry BGP routes can be useful in some very rare cases, but can cause large problems in most cases. For this reason, there are frequently proposals to disable this function on BGP routers or at least provide a warning or to ring an alarm when a network engineer tries to use an IGP to carry BGP routes.

For more information about the AS7007 incident, see:

http://answerpointe.cctec.com/maillists/nanog/historical/9704/msg00342.html

For an analysis of BGP misconfigurations, see :
Ratul Mahajan, David Wetherall and Tom Anderson, Understanding BGP Misconfiguration, Proc. ACM SIGCOMM2002, http://www.acm.org/sigcomm/sigcomm2002/papers/bgpmisconfig.html