ccna college

ccna college

R1 has already completed the collection of its own TEDB information,ccna college, and the calculation process of the tunnel path is completed on R1 . Ip unnumbered Loopback0 tunnel destination 5.5.5.5 tunnel mode mpls traffic-eng SNPA ( Subnetwork point of attachment ) i ia 10.1.24.0 [115/148] via 10.1.123.2, FastEthernet0/0 i ia 10.1.45.0 [115/158] via 10.1.123.2, FastEthernet0/0 i ia 10.1.34.0 [115/158] via 10.1.123.2 , FastEthernet0/0 C 10.1.123.0 is directly connected, FastEthernet0/0 i*L1 0.0.0.0/0 [115/10] via 10.1.123.3, FastEthernet0/0 Router# show mpls traffic-eng link-management bandwidth-allocation Assume that this is an internal network of the operator, R4 is the national trunk, R2 and R3 are left to the provincial, and the provincial internal ran IS-IS to carry the routing prefix information in the Core , and as the provincial dry exit R2 , R3 The route prefix or default route of a specific national trunk is issued. We take the default route example here. Both R2 and R3 maintain the EBGP neighbor relationship with R4 . In this case, R2 is required to be upgraded and then restarted. After the restart, IS-IS converges faster than BGP . After the first convergence, R2 to the IS-IS area. Internal flooding LSP , R1 will use R2 as the next hop of some route prefix, or the next hop of the default route. However, at this time , BGP of R2 does not converge, so that R2 is reached.The data may be discarded and black holes appear.