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Type the IS : first 1 , 2 bits for indicating the type of router is L1router or L2router Router(config)#interface tunnel x 4.4.4.4/32 0 packets, 0 bytes tag information set LSP TLV field of Level 1 route The Global Pool Sub Pool !! interface is the bandwidth pool for each priority tunnel Can I perform route summarization on the L1 router ? Router(config)# mpls ldp discovery holdtime seconds Such as LDP ID = 1.1.1.1:0 Router isis IS-IS supports two levels of routing: Level1 and Level2 . Level1 supports routing within the region, Level2 support routing between areas. The Level 2 LSP encapsulates the Level 2 network topology information obtained from the routers connected to the backbone network . The complete Level 2 network topology can be obtained by using the SPF algorithm in the Level 2 link state database . ISH is sent by IS to ES The status here is active . When the primary link does not expire, status is displayed as ready LSP Seq Num Level2 area Link state information IGP itself supports Router ospf 100 NET 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. Message type Oldtime Circuit Id Experimental procedure The above output is the opaque-area LSA of type10 flooded by each router in area0 in this environment . You can take a closer look at it, for example, look at R1 itself to generate LSA10 : Mpls traffic-eng tunnels ip rsvp bandwidth The configuration of R4 is as follows: LS age: 29 Type 1 length 8 : The port in TCP/IP . Router(config-if)#mpls traffic-eng tunnels The affinity attribute is a property that describes the MPLS TE tunnel and is also composed of 32 bits ,ccna training uk, which is exactly the same as the number of attribute-flags mentioned above . Also configured with the affinity attribute is a mask, also 32bits , which is used to match the attribute tag and the affinity attribute.