ccna certification path

ccna certification path

IIH Network 10.1.34.3 0.0.0.0 area 0 Obviously due to the lost and R3 direct link, R1-R3 between the LDP adjacency hung up, in terms of natural LIB table, before R3 pass over the bundled label will be lost, and now, if R1-R3 Between the link replies, they have to re-establish LDP adjacency and resend the label bundle. Frame-relay map ip 10.1.123.1 301 broadcast Source-based routing can be used here. This LSP is called an MPLS TE tunnel. It is one-way. And the configuration of the tunnel only needs to be performed on the headend LSR . Subdivided into Area , roughly similar IP subnet Net 49.0002.0000.0000.0004.00 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 Level2 area default route (conditional advertisement) MP ( Merge Point ): Convergence point, which is the end of the backup tunnel. It can also be understood as the junction point of the primary tunnel and the backup tunnel. Link connected to: a Transit Network Ip cef The configuration of R4 is as follows: We see that in the LFIB of R3 , going to the destination of 1.1.1.1 , there are two label paths for load balancing. Therefore, when R2 sends the label packet to the tunnel , the label that is pushed into the outer layer is 304 , and this 304 is obviously allocated by R3 , and is the label assigned by RSVP to the TE tunnel . 40s , and in order to establish an adjacency relationship, the holding time of both parties must be consistent. *Aug 18 11:31:44.598: [Note] If the router receives a tagged packet and the top tag cannot be found in the local LFIB , the CISCO IOS will discard it. Router-id 2.2.2.2 The OSPF adjacency cannot be established, but R1 has only one available path to reach R2 , so OSPF adjacency is established unconditionally. At the same time, R1 and R2 will directly announce the 10.1.12.0/24 direct link,ccna certification path, which will be advertised with the largest metric 65535 . The purpose of this is that if the network environment is a redundant link environment, then the metric of the link can be made the worst from the perspective of the IGP , so that the LDP path bypasses the link.