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Bandwidth: 2000 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF Metric Type: TE (default) Downstream active mode : Downstream Unsolicited The ACL filters out LDP packets. This prevents LDP adjacency between R1 and R4 from being established. Let's observe the phenomenon. Mpls ldp router-id Loopback0 Router ospf 1 Isis password cisco CSNP 104 2.2.2.2/32, Flags: 0x21 (Local Prot Avail/to NHOP, Node-id) When we select a DIS , DIS represents the broadcast network, including all ISs connected to the broadcast network. C 1.1.1.0 is directly connected,ccna exam download, Loopback0 Fa0/0 Match ip address prefix-list test router isis All interconnected IPs are shown Interface loopback0 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 . Setting the priority and maintaining the priority all indicate whether a TE tunnel can preempt another TE tunnel by using the corresponding value . The lower the priority, the higher the importance. Extended IP reachability TLV (type 135 ) 906 the term Transport addr is generally equal to LDP ID unless it is specified by hand ( mpls ldp discovery transport-address ) . Note that here (described above) there are actually three kinds of addresses: interface IP , Transport addr , LDP ID By default, the IS-IS area is the stub area, which is the latest release. DBD Route-target import 2345:5 Experimental procedure R2(config-if)#mpls traffic-eng administrative-weight 100 Tunnel: Distribution mode : Label Allocation Local binding: tag: 100 75000 However, not all messages with the same label belong to one FEC , because the EXP values ​​of these messages may be different and may be performed differently, so they may belong to different FECs . Distribution mode (the Label Distribution's) : the downstream drive mode (Downstream Unsolicited) Active Path Option Parameters: In the forwarding process, a set of data with the same processing mode can be identified by means of address, tunnel, COS, etc., usually in one set. 10.1.12.1 !! 10.1.23.2 is also unchanged We may as IS-IS of level1 or level2 assign an interface authentication password. If level2 is not specified , the default level1 authentication. If the interface is enabled for plain text authentication, the password is inserted into all IS-IS packets: IIH , LSP , CSNP , and PSNP (based on a specific level ). When actually capturing packets on the CISCO device, it is found that only the password information of the plaintext is carried in the IIH (placed for authentication).