ccna actual exam questions

ccna actual exam questions

Network 10.1.45.4 0.0.0.0 area 0 Now we configure MPLS LDP-IGP synchronization on R1 and R2 : ! LSRs maintain only one LDPsession for each label space NSEL is 00 ( 1B from the right ) The system ID is 0000.0c00.1111 The area ID is 39.0f01.0002 *Aug 18 09:06:02.699: average rate=250000 bytes/sec, burst depth=1000 bytes L2 rouer redistributes external routes into IS-IS Interface eth0 0/0 Ip router isis encapsulation frame-relay Election DIS . In this network, the DIS will generate and flood the new pseudo-node LSP on each of the routing layers it participates in (whether L1 or L2 ) and on each LAN it is connected to . Each router on the LAN establishes adjacency with all other routers and DISs , and does not elect to back up the DIS router. The elected DIS does not guarantee that it will always be DIS . 697 Src 1.1.1.1, Dst 5.5.5.5, Tun_Id 0, Tun_Instance 31 RSVP Path Info: 10.1.34.0/24 The NSAP or Net address is used to distinguish devices. In ISO terminology, the data link layer address ( LAN MAC , Frame Relay DLCI, etc.) is referred to as subnet point of attachments ( SNPA ). Since a network device may be connected to multiple links, multiple SNPA addresses are required, but only one OSI network address is required . Use the clns host command in global configuration mode to establish a mapping of hostnames to NSAP addresses. In this way, in the link state database, LSP Tunnel mpls traffic-eng autoroute metric relative parsing if the configuration of R2 changes as follows: Neighbor relationship establishment Hop Addr: 10.1.12.2 LIH: 0x0D000408 The MPLS TE tunnel itself does not support the IGP routing protocol because: On the R3 , as shown in the figure, the R3 local routing table does not need a default route, and an IS-IS default route can be generated and passed to RFC1195 Periodic flooding In the LSP , and if the LSP is divided into different segments, then the TLV word The way to use static routing is of course the easiest, and the best control,ccna actual exam questions, but the scalability is too poor, if there are multiple tunnels, then configuration and maintenance is more troublesome. Interface fast 0/0 Router isis Traffic engineering ( Traffic Engineering ) we can be loosely understood as "the ability to control traffic across the network," we can by TE allows the deployment of traffic in an optimal way transmission from one node to another node in the network. Or Tunnel Id R3.02-00 ! Tunnel mpls traffic-eng path-option 10 dynamic Label subobject: Flags 0x1, C-Type 1, Label 0 Interface loopback0 Interface fast 0/0 The command to define an Explicit path is as follows: 103 After saving the configuration restart R2 , the R2 after the restart is completed, ISIS lead convergence, but this time bgp Write convergence completion, so R2 resulting LSP in overload set, from R1 the following results can be seen, during this time, R1 is not R2 will be used as the next hop to other networks ( except for the network directly connected to R2 ): 10.1.34.4 Link attribute State: Oper; Msgs sent/rcvd: 112/112; Downstream Up time: 01:29:44 R5 and R6 each announce their own Loopback route in the BGP process. The IS-IS adjacency on the LAN is still different from the P2P link: This state has three values: down , init , up Types of Is-type level-2-only !! R4 is L2 router , so modify the is-type type to level2-only Routing information diffusion and database synchronization In the above experiment, we announced the direct connection network of R1-R5 and R4-R6 in Core OSPF . However, we know that in actual situations, this chain outside AS is not declared in Core IGP . Road, so let's take a look at it. If you do not announce these two direct links in OSPF , what will happen : Since OSPF does not have these two directly connected segments, then 5.5.5.5 and 6.6.6.6 learn to come in. preferably not a need in R1 of the R4 to use Next-Hop-Self , R4 to R1 is also the same reason.