cisco ccna questions and answers pdf

cisco ccna questions and answers pdf

*Aug 18 04:37:06.239: Minimum Path Bandwidth (bytes/sec): 1250000 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. (Tunnel0) Destination: 5.5.5.5 Show isis database on R1 Is an extended form of type 128TLV Network 55.55.55.55 area 0 Experimental phenomena Once the router receives the IIH , it checks the adjacency of the sender of the hello packet. If the adjacency has been established, the adjacency is reset. <0x0-0xFFFFFFFF> Attribute flags Basic architecture IS-IS router advertisements contain direct neighbors and routing information TLVs . Can use the default or use this command to modify Router(config-if)# bandwidth ? PDU Tspec: ave rate=20000 kbits, burst=1000 bytes, peak rate=20000 kbits RSVP Resv Info: This time we did the test, environmental test just a different, TE the Tunnel tail end now is to R4 of 4.4.4.4 . Rl ,cisco ccna questions and answers pdf, R2 , R3 , R4 running the OSPF , declaring a straight connector, and Loopback interfaces, Loopback port IP of XXXX / 32 , X Ip address 10.1.45.4 255.255.255.0 *Aug 18 11:26:02.546: Tunnel mode mpls traffic-eng tunnel destination 4.4.4.4 Record Route: NONE MPLS TE Router ID: 2.2.2.2 *Aug 18 09:06:07.919: Minimum Path Bandwidth (bytes/sec): 2147483647 Password: not required, none, in use 0x2D6E Bandwidth: 33000 Tag or VC ISO10589 Integrated IS-IS and OSPF are 20 century 80 late-defined, which is about 1988 years. OSPF actually evolved from an earlier version of IS-IS , but it uses IP as a precondition. The core concepts of OSPF , such as the proliferation of link state information, the SPF algorithm, and the use of designated routers in the broadcast link, are borrowed from the IS-IS early version. IS-IS packets carry all easily expandable information using TLV fields BGP route delivery in MPLS environment 75000 View MPLS forwarding table ( LFIB ) BGP routing problem, well, now we use the loopback interface on R1 and R4 to establish IBGP adjacency, the problem is solved. At this time R4 , the go 5.5.5.5 next hop of the R1 of Loopback port addresses, R4 at destined to 5.5.5.5 of the IP when the pressure package label, use is 1.1.1.1/32 routing tag, The same is true for R3 and R2 , then the label package can be opened through 1.1.1.1/32 . 204 10.1.12.0/24 Hop Addr: 10.1.12.2 LIH: 0x0D000408 MPLS TE status 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. *Aug 18 11:26:02.546: ! Integrated IS-IS After completing this configuration, take a look at the phenomenon: 10 Prefix Protocol overview Once the router receives the IIH , it checks the adjacency of the sender of the hello packet. If the adjacency has been established, the adjacency is reset. Network 10.1.45.5 0.0.0.0 area 0 Router-id 3.3.3.3 Establish mapping of data link layer address to network layer address ( CLNP address) 0x5C66 It has been verified by experiments. Use debug mpls traffic-eng tunnels events and debug mpls traffic-eng tunnels reoptimize . ! ! If a router does not refresh its generated LSP after the LSP refresh interval , and the LSP remaining timer field has been reduced to 0 , all routers that have the LSP copy will copy the LSP from its own chain after the 60S grace period. Clear in the road state database. This 60S time is ZeroAgeLifetime , zero lifetime, and not configurable. PDU The OSPF adjacency cannot be established, but R1 has only one available path to reach R2 , so OSPF adjacency is established unconditionally. At the same time, R1 and R2 will directly announce the 10.1.12.0/24 direct link, which will be advertised with the largest metric 65535 . The purpose of this is that if the network environment is a redundant link environment, then the metric of the link can be made the worst from the perspective of the IGP , so that the LDP path bypasses the link.