ccna netacad

ccna netacad

After receiving the label from the tail router, the penultimate hop router uses the label as the outbound label of the TE tunnel ,ccna netacad, and assigns a label to the tunnel and places the label in the label object in the RESV message. Send it to its own upstream router. Complete basic IP configuration (configuration omitted) Remote binding: tsr: 2.2.2.2:0, tag: imp-null tib entry: 10.1.13.0/24, rev 8(no route) OSPF is routerID Interface eth0/1 Router isis If there is a loop (usually a problem with the IGP , such as a misconfiguration of the static route), the TTL in the tag header will prevent the tag packet from being forwarded indefinitely. Fa0/0 When we deploy MPLS TE and use OSPF as the TE , OSPF needs to be extended to support MPLS TE . At this time, we can see that the Obit bit is set and can only be seen in DBD packets in this environment. the corresponding option of obit set but the other messages in the option in the obit is still 0 . Mpls ip Tib entry: 1.1.1.1/32, rev 2 3.3.3.3/32 General Parameters break bit=0 service length=8 75000 We see that after the BGP neighbor relationship is up , R2 immediately triggers an LSP , and the overload is set before the LSP is cleared . OutLabel : FastEthernet1/0, 301 R2 (config-keychain-key)#key-string cisco R2 (config-keychain-key)#exit Version : value is 1 55.55.55.55 [110/31] via 10.1.23.3, 00:03:44, Ethernet0/1 Establish mapping of data link layer address to network layer address ( CLNP address) Bytes tag Signalling: connected LDP Id: 2.2.2.2:0 // 2.2.2.2 is router-id ; 0 is label gap Router ospf 1 Router(config-router)#mpls traffic-eng router-id {interface} Router ospf 1 After receiving the label from the tail router, the penultimate hop router uses the label as the outbound label of the TE tunnel , and assigns a label to the tunnel and places the label in the label object in the RESV message. Send it to its own upstream router. 4.4.4.4/32 Tunnel mpls traffic-eng priority 5 5 R1#deb ip rsvp dump-messages Ip address 5.5.5.5 255.255.255.0 ip router isis Complete basic IP configuration (configuration omitted) Record Route: 10.1.34.3 10.1.13.1 RSVP extension for LSP tunnel : RFC 2973 Debug information on R1 Type 1 length 12: Router isis 5.0.0.0/24 is subnetted, 1 subnets 203 Class of data – The FEC which is mapped onto it Tib entry: 2.2.2.2/32, rev 6 Interface eth 0/0 Configure path protection on R2 and observe the phenomenon. Suppose we have now established a TE tunnel with R2 at the head end and R5 at the end , which will generate a tunnel interface in the R2 local routing table . Then the simplest method is to direct the traffic of the upper tunnel to the tunnel interface with a static route . For example, after the following configuration is completed, the traffic from R1 and R2 to 55.55.55.0/24 will go from the TE tunnel .