cisco ccna classes

cisco ccna classes

Ip unnumbered loopback 0 tunnel destination 2.2.2.2 tunnel mode mpls traffic-eng The sub-TLV of 0-244B is mainly used for MPLS TE. Administrator-weight , and only the IGP metric is used to calculate the shortest path of the tunnel . Then you need the top-level tag, which looks at the next hop. The next hop is 5.5.5.5 , so be sure to find the 5.5.5.5 tag. As we have seen from the routing table, at this point R2 goes to 5.5.5.5 and actually enters the TE tunnel ,cisco ccna classes, then: Net 49.0001.4444.5555.6666.00 Status SystemID Length : Identifies the length of the system ID . A value of 0 indicates a length of 6B , a value of 255 indicates a length of 0 , and other system ID fields may have a length of 1-8 bytes. R4#sh mpls tr tun In TLV ), other messages were not seen. The command is as follows (interface level): Does it match, verify that the password is correct, the area ID or something. Remote binding: tsr: 2.2.2.2:0, tag: imp-null tib entry: 3.3.3.3/32, rev 6 10.1.12.2 Mpls traffic-eng tunnels mpls label range 100 199 Hostname: R1 Router ID: Local binding: tag: 100 130 The loopback0 address space of all devices is xxxx/32 , and x is the device number. If there is no PHP mechanism: The configuration of R1 is as follows (the tunnel is not configured temporarily ): Debug ip rsvp dump-messages *Aug 18 09:06:07.919: HOP type 1 length 12: The configuration of R1 is as follows: IS-IS packets are encapsulated in data link layer frames. Router bgp 123 Mpls traffic-eng tunnels mpls label range 200 299 ! The configuration of R3 is as follows: Point1 : The sub-TLV of 0-244B is mainly used for MPLS TE. The port in TCP/IP . SRM ( Send Routing Message ): Send routing information message Router(config-router)#mpls traffic-eng area x DIS no backup DIS , DIS can be preempted, DIS to 3 transmission times frequency Hello PDU Label description Type 1 length 12: Error metric Next, the data is sent to R3 . After R3 checks its own LFIB table, it replaces the 303 tag with 203 and then throws it to the next hop R2 . After receiving the label package, R2 looks at its own LFIB table and finds that the outgoing action is a PoP . Then the label is ejected and becomes the original IP packet, and then it is thrown to R1 . Finally, R1 forwards the IP packet to R5 . So why is R2 here PoP here ? The answer is that this BGP routing, we talked about earlier, in fact, it is using a next hop 10.1.15.0 label, 10.1.15.0 is R1 directly connected network segment, so the R1 when the label assigned to the route , gave it aPoP , then distribute this result to R2 , which is why.