how to write ccna exam

how to write ccna exam

5.5.5.5 [110/31] via 10.1.23.3, 00:03:44, Ethernet0/1 RSVP messages have a common header followed by one or more Objects R3(config-if)#tunnel mpls traffic-eng forwarding-adjacency ? ISO IS-IS Routing Protocol Basic Experiment ( LinkProtection ) Now activated R1 is fast-reroute features modified R1 of Tunnel port configured as follows: ISO10589 Tunnel mpls traffic-eng autoroute metric relative parsing if the configuration of R2 changes as follows: Explicit Route: 10.1.45.5 5.5.5.5 10.1.23.0/24 The L1 and L2 IIH PDUs on the LAN are sent to different multicast MAC addresses: L1 is 0180-C200-0014 and L2 is 0180-C200-0015 Ip address 4.4.4.4 255.255.255.255 Network 10.1.23.3 0.0.0.0 area 0 Local label info: global/16 ! Activate the MPLS TE extension for each router's OSPF and manually set the RouterID for MPLS TE . Network 10.1.45.4 0.0.0.0 area 0 mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 Virtual circuit ID of X.25 or ATM !! The maximum reservable bandwidth is 75M 10.1.12.2 [MPLS: Label 203 Exp 0] 200 msec 84 msec 136 msec Set-overload-bit suppress interlevel redistribute connected level-1 If R3-R5 , LDP is run , let R5 send the label packet, R3 receives the label packet, looks at the byte after the label stack, and finds the value is 4 , so it is determined to be an IPv4 packet, so the IPv4 header is The source and destination addresses are taken out for hashing to perform load balancing. *Aug 18 09:06:07.919: SESSION type 7 length 16: Router ospf 1 Needless to say this? Activate CEF Intermediate system adjacent router 103 We see that on R2 , about 5.5.5.5 and 55.55.55.55, the R5 is the "rear" network at the end of the tunnel . The outgoing interface is tunnel0 . This means that when R2 receives data destined for these two network segments, it is placed directly into the TE tunnel . Compared to the way static routes are placed,how to write ccna exam, the advantages of autoroute are shown. Ip router isis Mpls ldp router-id Loopback0 ! In order to ensure the simplicity of the experimental environment first, I will ignore the existence of the R4 and R4 direct links. When you don't exist, you will be there. Each metric type is 8bits and has the following form: As with regular IP routes , OSPF floods LSAs when the interface is up or manually modified for IGP interface parameters. TE Metric : Administrative weight i* L1 Net 49.0001.1111.2222.3333.00 Since the IP packet is generated on the initial router, the CEF table is searched . With the " show ip cef detail " command, you can see from the output whether the route is pushed into the label. The distribution label is based on The prefix in the CEF table is assigned. To update the LSDB , the LSP will be cleared from the LSDB . After the old LSP is cleared from the LSDB , it will remain for a while. Network 10.1.34.3 0.0.0.0 area 0 ISO IS-IS Routing Protocol Ip address 10.1.12.2 255.255.255.0 Mpls traffic-eng tunnels ip rsvp bandwidth SESSION 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. There are two ways to set the path of the TE tunnel ( Explicit explicit or Dynamic dynamic) The above figure encapsulates a three-layer label package. For an LSR , only the first label is processed. Each layer of the label has a bottom of the BoS stack to indicate whether it is already the bottom of the stack of the label, and the last label has BoS=1 . Then, R4 goes to 5.5.5.5 and the next hop is 10.1.12.1 . When 6.6.6.6 accesses 5.5.5.5 , the IP packet arrives at R4 . R4 checks the CEF and labels the IP packet. The key is On this label, R4 will use the label of 10.1.12.0 for this route ( 12.0 is the next hop to 5.5.5.5 ), and this label is assigned by R3 (the label I give to the export data is always the LDP neighbor. s Mark).