White Papers

23 Using Policy Based Routing and Access Control Lists in a Virtualized Network
Appendix A: Packet Process flow through a Route-map
INCOMING PACKET
IS THERE A MATCHING
ROUTE-MAP
FOLLOW NORMAL
ROUTING PROCEDURES
(OSPF, RIP, STATIC)
PERMIT OR DENY?
PERFORM ACTIONS
SPECIFIED IN SET
STATEMENTS
DROP PACKET
(INTERFACE NULL0)
NO
YES
DENY
PERMIT
ROUTE
DROP
OUTGOING PACKET
NETWORK
ROUTE
NETWORK