ccna certification online

ccna certification online

MPLS is a forwarding technology based on packet labeling If the L1 / L2 router redistributed external routes to Level-1 , the Level1 area in you can learn the route, but R2 does not route injection Level2 area is Backbone of The configuration of R1 is as follows: ADSPEC 8 Network 1.1.1.1 0.0.0.0 area 0 LDP certification The configuration of R3 is as follows: Router ospf 1 Interface fast 0/0 *Aug 18 09:06:07.919: Tun Dest: 5.5.5.5 Tun ID: 0 Ext Tun ID: 1.1.1.1 Network 10.1.24.4 0.0.0.0 area 0 ! My Address: 10.1.12.1 Mpls ip *Aug 18 09:06:07.919: EXPLICIT_ROUTE type 1 length 68: R1#sh isis neighbors detail IS reachability Ip address 10.1.34.3 255.255.255.0 Basic experiment Opaque ID: 0 Current LSP: Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 R1 , R2 , R3 , and R4 run the LDP protocol. 0 kbits/sec Src 2.2.2.2, Dst 4.4.4.4, Tun_Id 0, Tun_Instance 6 RSVP Path Info: *Aug 18 11:26:02.546: Maximum reservable bandwidth : 9375000 Number of Priority : 8 The PATH message is delivered from the headend router to the following router, then the next hop router will remove its own IP from the ERO . MPLS TE Router ID: 2.2.2.2 Interface eth 0/1 The configuration of R2 is as follows (all configurations are omitted from the configuration of interface IP ): After the configuration is complete,ccna certification online, the tunnel is up. !! Path error message sent by R2 to R1 Ip unnumbered Loopback0 tunnel mode mpls traffic-eng tunnel destination 5.5.5.5 Configure this feature on the A device (usually on the edge device) no mpls ip propagate-ttl *Aug 18 04:37:24.735: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel0, changed state to down If the PSNP acknowledgment is still not received after the retransmission timout , the originating router will retransmit the LSP. *Aug 18 09:06:02.699: HOP type 1 length 12: ISO10589 I don't want L1-router to generate this default route, or more rigorously, we don't want L1\L2 router to press att , the method is The configuration of R5 is as follows: Level2 area Record_route Intermediate system IS Mpls ldp router-id loopback0 mpls label range 400 499 interface fast0/0 Match ip address prefix-list test router isis Three-way handshake mechanism: We started CEF on R3 . In fact, in CEF , the default load balancing method is destination-based load balancing. CEF 's Reservable Bandwidth[5]: 0xE7D9 Network 4.4.4.4 0.0.0.0 area 0 Show and debug Router(config)# mpls ldp targeted-hello holdtime x interval y The loopback0 address space of all devices is xxxx/32 , and x is the device number. Sub Pool 13223 The Auto Route is configured on the MPLS TE tunnel head-end router and only affects the OSPF route selection of the head-end router . Router(config)#mpls traffic-eng tunnels Keeping priority indicates how much weight a tunnel has, so that it can be preserved in the link; 1.1.1.1/32 ISIS for NBMA support network is still flawed, as in the previous experiment demonstrates, if it is run on a Frame Relay main interfaces ISIS , or P2MP run on sub-interfaces ISIS , then you must ask PVC full-mesh, otherwise, the route study Not normal, but even if the PVC is fully interconnected, there are hidden dangers. If a PVC fails, routing will still have problems. Traceroute 1.1.1.1 source 10.1.35.55 10.1.12.2 After completing this configuration, take a look at the phenomenon: R1#show ip route Network 10.1.23.3 0.0.0.0 area 0 !! Interface priority for electing DIS There are four metric types: Record Route: NONE Fa0/0 R2-PE1#show mpls traffic-eng tunnels The forwarding behavior of such IP packets may cause link transitions in some networks, while other links have a low probability of use. IPv6 , then it must publish routing information with this NLPID value. RSVP Signalling Info: Integrated IS-IS is a routing protocol that can handle multiple network layer protocols (such as IP and CLNP ) simultaneously . In contrast, OSPF only supports one network layer protocol of IP , that is, OSPF only supports IP routing. The integrated IS-IS can support pure CLNP network or pure IP network, or support both CLNP and IP network environments and provide routing functions. After years of development, the integrated IS-IS protocol has become a scalable, powerful and easy-to-use IGP routing protocol, and has been used in carrier networks for more applications and deployments. IP routing.