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Fragment number : 0 Fast tag rewrite with Fa0/0, 10.1.34.3, tags commit: {303} via 10.1.15.5, 0 dependencies,ccna exam date, recursive Bandwidth: 0 Activate LDP on all devices. To facilitate observation, specify the label range for each device . For example , the label range of R1 is 100. Average rate = 250000 bytes/sec, burst depth = 1000 bytes Router isis Peak rate No mpls ip propagate-ttl [ forwarded | local ] Integrated IS-IS and OSPF are 20 century 80 late-defined, which is about 1988 years. OSPF actually evolved from an earlier version of IS-IS , but it uses IP as a precondition. The core concepts of OSPF , such as the proliferation of link state information, the SPF algorithm, and the use of designated routers in the broadcast link, are borrowed from the IS-IS early version. Multi-zone integrated IS-IS configuration IS-IS supports ISO CLNP and IP environments Bw[3]: 10.1.45.0/24 10.1.23.3 [MPLS: Label 300 Exp 0] 0 msec 0 msec 0 msec Routers in the network must identify all in order to perform appropriate operations Except for HELLO packets based on UDP646 , other packets are based on TCP port number 646. Mpls traffic-eng reoptimize events link-up Network 10.1.12.2 0.0.0.0 area 0 Router(config-if)#tunnel mpls traffic-eng path-option 10 explicit name ccietea ! ! Associated to path-option 55000 Let's start with a brief introduction: *Aug 18 11:26:02.546: All routers in the LAN including the DIS establish an adjacency relationship with the PSN , relying on the adjacent relationship formed by the pseudo node on the LAN . Once the DIS generates a pseudo node in the LAN , the reliability is guaranteed. It periodically sends a first one layer and two layers Hello PDU and the CSNP . The Hello PDU indicates that it is a layer of DIS . The CSNP describes the summary information of all LSPs , including LSP ID , sequence number, checksum, and remaining lifetime. It uses multicast to flood. CSNP is only used to correct any missing PDUs .