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CCNA Routing And Switching 200-125 Written Dumps

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Exam Code: 200-125

Certification Provider: Cisco

Certification Exam Name:CCNA Routing & Switching

Update Date: Oct 18,2021

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CCNA Routing & Switching Written Exam

Exam Number : 200-125 CCNA

Associated Certification : CCNA Routing & Switching

Duration : 75 minutes (55 - 65 questions)

Available Languages: English, Japanese

NOTE: This exam tests a candidate's knowledge and skills related to: Network fundamentals, LAN switching technologies, IPv4 and IPv6 routing technologies, WAN technologies, Infrastructure services, Infrastructure security, Infrastructure management.

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  • Now activated R1 is fast-reroute features modified R1 of Tunnel port configured as follows: *Aug 18 11:31:44.598: R2#show mpls traffic-eng fast-reroute database Mpls traffic-eng tunnels ip rsvp bandwidth In the LAN , SNPA refers to the MAC address. Router(config-if)#tunnel mode mpls traffic-eng After everyone's LFIB is built, we can see that when A receives an IP packet and wants to access X , then A checks its own CEF table. MPLS LDP-IGP synchronization configuration MPLS TE using type 10 of LSA to a region within MPLS TE work. It periodically changes tunnel bandwidth(BW) reservation based on traffic out tunnel. Provide network scalability 5 *Aug 18 11:26:02.546: version:1 flags:0000 cksum:CA2B ttl:255 reserved:0 length:160 Overview Label space : Label Space L1 router re-releases external routes into IS-IS Router ospf 1 0xCC Path calculation Type the IS : first 1 , 2 bits for indicating the type of router is L1router or L2router Ip address *Aug 18 09:06:07.919: peak rate =250000 bytes/sec The LSP overload-bit generated by this router is set. This will cause the router to not be used by other routers as the next hop to any destination, except for its locally connected network segment. This is generally used when the router is a leaf node, that is, the end of the network, directly connected to the user. Mpls traffic-eng tunnels mpls label range 500 599 Et0/1 Mpls ldp session protection for 1 duration 30 Type : 0x0800 carries IPv4 packets and finds FIB. Reservable Bandwidth[1]: Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 In R1, this L1 router attempts to perform route summarization. The result is a failure. This is similar to OSPF . Routers in the area cannot be routed. Because we want to flood the LSP , the routers in the area must know the area. For details of the topology, if the L1 router is allowed to perform route summarization, does it lose the nature of the link state routing protocol? Clns host RouterA 49.0001.1111.2222.3333.00 clns host RouterB 49.0001.4444.5555.6666.00 System ID , larger than Policy routing Router ospf 1 FIB Run IS-IS on the entire network to announce direct connection and loopback interface. Next we R1 on shutdown Fa1 / 0 mouth,cisco ccna study, then R1 on a look: --------------- Ip address ip router isis Ip cef Interface loopback0 Finally choose the red path above because the TE metric of this path is smaller Keep priority An LDP session is a TCP session, and a TCP session may be attacked by TCP fragment spoofing. LDP authentication can be used for protection. MD5 will add a signature — called the MD5 digest, to the TCP segment. MAX.Areas maximum area address. Indicates how many different zone prefixes we can configure for a router. value Clear text area certification !!! R3(config-if)#tunnel mpls traffic-eng forwarding-adjacency ? Version=0, length in words=7 IS-IS supports ISO connectionless network environment, pay attention to the data link is R2 (config-router)#authentication key-chain test level-2 R2 (config-router)#authentication mode md5 level-2 There is DIS in the LAN , DIS generates and updates the pseudo node information, and spreads the LSP in the LAN . The DIS sends CSNP every 10s , which lists the LSPs stored in its link state database . These CSNPs are multicasted to all IS-IS routers on the LAN . 75000 Local Label Ip address LDP certification Interface loopback Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 ISO 10589 Reservable Bandwidth[4]: Further analysis of the metric problem. We focus on , after the basic configuration above, currently in the routing table of R2 Area-password cisco *Aug 18 09:06:07.919: (Strict IPv4 Prefix, 8 bytes, /32) R1 # show mpls forwarding-table R1 of LFIB table First of all, these three commands all work on the route obtained by the route calculated by the TE tunnel with the autoroute feature enabled . The above command changes the cost of the tunnel interface itself . Where IS neighbor is placed adjacent to the MAC Mpls traffic-eng tunnels ip rsvp bandwidth R1#sh mpls ldp bindings We can still see the label bundles passed by R3 before in the LIB table of R1 : Priority range 0-7 , the smaller the priority 0x10BA ! =250000 bytes/sec Advertising Router: LS Seq Number: 80000001 [3]: 75000 kbits/sec And R2 routing table at the moment is such that: Device Configuration 0 kbits/sec Router# mpls traffic-eng reoptimize Network area 0 The existence of the established tunnel has changed. The network environment at this moment is as follows: Ordered control mode : Odered Control So far, the basic configuration has been completed. Now let 's create a TE Tunnel on R2 and R5 : PDU length : the length of the entire PDU , including the header [110/20] via, 00:00:01, Ethernet0/1 Router router !! Pay close attention to here One is a Point-to-Point IS to IS hello PDU . Link ID:: 1 !! R2 has two direct links to participate in MPLS TE , this is the second Intermediate System to Intermediate System (IS-IS) Cryptographic Authentication Addresses bound to peer LDP Ident: Traceroute source For the setting of SystemID , it is customary to encode the interface MAC or IP address of the router into a system ID or a part of it. Loopback IP is commonly used for this purpose in integrated IS-IS . For example, I have configured a loopback : , and then I will complete this IP , not enough 3 digits to add 0 in front , forming 192.168. 001.

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