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无边大海上的贝壳^_^吴海贝Haibei Wu 吴海贝 April 01 爱上厨房February 19 Conclusion Before ExaminationTomorrow I will take part in the final exam of CN8814 Network Architecture. This course is taught by my Program Director Bobby Ma and it also belong to the main core course in the whole program. Whenever I take the Bobby's exam, I always want to prove that I am the best in his course because Bobby is my favorite professor and he provide a lot of conveniences. Therefore, I need to get more effort in preparing for the test.
Now, I draw a conclusion before the exam:
BGP:
note1: redistribute bgp into IGP if not full-mesh
note2: reflector always work with the peer-group together
note3: private-link between EBGP peer you need to control route-map in and out!
MPLS/VPN:
note1: the last PE LSR advertise imp-null (label = 3) to the next one LSR, and the local binding is imp-null. the remote-label is untagged.
note2: in MPLS PE router BGP table, it will has all BGP route and it contain the redistribution BGP route from the IGP and IBGP peer advertisement BGP route, and EBGP peer route. In the MPLS/VPN, the IBGP router always take some other attributes such as route identifier (RD) and route target (RT), so we need to take care of them.
Example:
VPNSite1 and VPNSite2's RD is the same, the BGP table associated with the VRF will come up some unhoped route, but due to the VRF FIB, the unhoped route will be not advertise to the Customer Site. VRF is up to RT.a
Continue......
GOOD LUCK!
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