cisco ccna exam fees

cisco ccna exam fees

Controlled Load Service break bit=0 service length=0 Switched 10.1.34.0/24 [110/20] via 10.1.23.3, 00:00:01, Ethernet0/1 IS-IS supports ISO CLNP and IP environments FastEthernet0/0, Src IP addr: 10.1.12.2 Addresses bound to peer LDP Ident: Forwarding Adjacency forwarding adjacency 1B of the sub-TLV length IS-IS and OSPF NSEL is 00 ( 1B from the right ) The system ID is 0000.0c00.1111 The area ID is 39.0f01.0002 10.1.12.2 Tag or VC 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 . L1 router Tunnel: Different TLV field values ​​can be included in the LSP to advertise various different routing information. Mpls ldp router-id loopback0 Record Route: NONE 1bit Router-id 3.3.3.3 !! Cross-regional words must use loose next hop Network 3.3.3.3 0.0.0.0 area 0 Interface fast 0/0 Untag will remove all tag headers and turn them into a pure IP message. Mpls traffic-eng tunnels ip rsvp bandwidth The configuration of R4 is as follows: 5.5.5.5 [110/31] via 10.1.23.3, 00:03:44, Ethernet0/1 0xE1E2 IGP flooding Holdtimer : If the adjacency relationship is not established, the receiving router creates an adjacency relationship and identifies the adjacency type ( L1 , L2 ), and sets it to the initial state until the subsequent hello packet is confirmed to confirm the adjacency. After the basic configuration is completed, since R2 and R3 are L1\L2 routers , for both of them, they will advertise themselves to the local level1 area as a way to go out , by setting ATT in the LSP generated by themselves . we R1 point of view isis database has been able to see out. R1#show isis database 2.2.2.2/32 R3#show mpls forwarding-table Run IS-IS on the entire network to announce direct connection and loopback interface. ES-IS Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 *Aug 18 09:06:07.919: Layer 3 protocol ID: 2048 LDP IETF standard ( TCP/UDP port number 646 ) TDP CISCO private ( TCP/UDP port number 711 ) Tunnel mpls traffic-eng path-option 10 explicit name R3R4 L1/L2 router re-releases external routes into IS-IS ( to level1 ) R1#traceroute 55.55.55.55 103 The maximum reservable bandwidth is 75M , which is 75% of 100M . IGP System ID: 2.2.2.2 The configuration of R5-PE2 is as follows: Comprising one or more routers is configured on the source IP address, the CISCO IOS in Ip address 4.4.4.4 255.255.255.255 Route summarization on the L1/L2 router ( to level1 ) IS-IS interface. If the interface is attached to a multiaccess network, the circuit ID is concatenated with the system ID of the DIS ” The default LDP label space is platform-based per-platform or device-based. What do you mean? Let's look at the B router, which bundles the label 34 for the prefix X ,cisco ccna exam fees, and publishes the label binding information to all LDP neighbors, which is the same for everyone, and everyone has a label 34 . This is based on the platform. Then there is an interface-based tag space. IS-IS Level-1 LSP R1.00-00 Rl , R2 , R3 , R4 running the OSPF , declaring a straight connector, and Loopback interfaces, Loopback port IP of XXXX / 32 , X Ensure reliable diffusion of LSPs on point-to-point links Packets package R1#show mpls forwarding-table 4.4.4.0 detail Interface eth 0/2 Set-overload-bit suppress external Outgoing tag or VC Tag or VC Link state messages are used to propagate link and node information in the area (describe the topology of the local network) 75000 Do not advertise routes leaked from other levels ! If there is no PSN pseudo node, the situation is like the above picture. The LSPDB of all routers on the LAN is as shown in the figure. The red dotted line in the figure is the adjacency. We see that there are many adjacencies and the LSPDB is huge. So, is there a PSN pseudo node? Look at the picture below: SENDER_TEMPLATE * Aug 18 04: 37: 06.239 : Outgoing PathTear: !! dismantle tunnel PATH is used to establish and maintain, retain Configured Areas: 1 For details on the untagged , aggregation, etc., and the causes, see "PASSHOT MPLS VPN Technical Documentation" 0x1B7C Equivalent load balancing in CEF 10.1.12.2 1.0.0.0/24 is subnetted, 1 subnets An IBGP adjacency is established between R1 and R4 . The IBGP adjacency is established on the physical interface. Established between R1 and R5 , R4 and R6 In the above figure, R1 , R2 , and R3 run OSPF , and the direct connection and loopback are announced . The loopback is addressed to xxxx/32 , and x is the device number. At the same time, all direct interfaces activate LDP . Bytes tag switched LSPID *Aug 18 11:31:44.598: Interface level command, modify the MPLS mtu of the interface , it should be noted that mpls mtu can not be larger than the interface mtu O Interface Ethernet0/0 *Aug 18 04:37:06.243: Tun Dest: 5.5.5.5 Tun ID: 0 Ext Tun ID: 1.1.1.1 75000 The loopback0 address space of all devices is xxxx/32 , and x is the device number. ! In the isis process mode, if the redistribute command directly hits the level parameter, the default is to re-publish to level-2. We can avoid this problem by using overload-bit . The command is explained as follows (configured under the router isis process): 0/0/1 Data link layer address Phenomenon and troubleshooting (The router address and link information in the result of capturing the packet are respectively). 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 .