certification dumps

certification dumps

Pop tag information If the LSR receives an IP packet, check the FIB table. Assume that the FIB ( CEF table) related entries are output as follows: Network 10.1.23.2 0.0.0.0 area 0 Bw[3]: !! Cross-regional words must use loose next hop Mpls traffic-eng tunnels ip rsvp bandwidth Link State ID: 1.0.0.0 Opaque Type: 1 IS-IS Level-1 Link State Database: Network 10.1.12.2 0.0.0.0 area 0 The RSVP transmits the signaling in the path for the TE tunnel, but it also carries the obligation of MPLS label distribution, so that the packet can be label-switched along the path of the TE tunnel. Mpls traffic-eng tunnels mpls label range 400 499 Interface Loopback0 The concept of "similar" in IP ! Support tag distribution in DoD ( Downstream-on-Demand ) mode Integrated IS-IS configuration *Aug 18 09:06:02.699: Globally activate MPLS TE tunnel and set MPLS label space LSP Database LSP database LSP tunnel is one-way TCP connection: 2.2.2.2.61914 - 1.1.1.1.646 Pop tag Attribute Flags: 0x00000000 No output feature configured Ip unnumbered loopback 0 tunnel destination 5.5.5.5 tunnel mode mpls traffic-eng 0x00000036 Interface Serial0/2 959 Route Distinguisher: 2345:6 HOP 10.1.12.2 10 CSPF calculates the path LSR or LSAck Look at the routing table on R3 : 8bit maximum 255 , usually in the labeling when it is the ordinary ip packet TTL direct copy came Admin: up Oper: up Path: valid Signalling: connected When a packet enters the PE , is it a lookup table ( FIB ) or a checklist ( LFIB )? 10.1.12.2 ! *Aug 18 09:06:07.919: Looking at the above topology, we need to establish a TE tunnel between R1 and R5 . Under normal network conditions, we want the tunnel path to be R1-R2-R5 , which is an explicit specified path. In order to make the tunnel path have a backup,certification dumps, we can define a path-option , this path uses the dynamic setting method, let CSPF calculate it by itself, then the configuration is as above. About CLNP Based IP traffic engineering is connectionless, not an explicit path ( Explicit routing ) 0x0000000E Interface eth 0/1 *Aug 18 09:06:07.919: Hop Addr: 127.0.0.1 LIH: 0x00000000 If the link or node fails, the traffic will be rerouted due to the failure. If the rerouting takes a few seconds, the high performance of the link will cause a large amount of traffic pointing to the fault point to be discarded. For some businesses, business interruption may result. TE overview Interface eth 0/0 Ip address 10.1.12.1 255.255.255.0 2 In R2 configuration backup link, R2 increase in the following configuration: Mpls traffic-eng tunnels mpls label range 400 499 This TLV by L2 router establishes a virtual link through a backbone network between 10.1.23.0 [110/65536] via 10.1.12.2, 00:00:48, FastEthernet0/0 Note that the main tunnel is strongly recommended to be explicit . If the primary LSP is dynamic , the primary LSP is down. (For example , the E0/1 port of R2 is shut down ), the switch will be switched to the backup LSP . However, if the E0/1 port of R2 is restored at this time , after testing on the CISCO IOS router, it is found that the traffic cannot be switched back to the primary LSP . There is no such problem with the explici path .