ccna exam overview

ccna exam overview

10.1.23.2 10.1.23.3 TLV135 : Extended IP Rechability Router isis The loopback0 address space of all devices is xxxx/32 , and x is the device number. Network 4.4.4.4 0.0.0.0 area 0 Upon receipt of this PATH message, the tail router will return a RESV (reserved) message along the same path used by the PATH message, except that the direction is reversed. The RESV message contains the label that RSVP assigns to the tunnel . Ingress LSRs — Ingress LSRs receive a packet that is not labeled yet, insert a label (stack) in front of the packet,ccna exam overview, and send it on a data link. !! Change to 33M Provide network scalability ! 2.2.2.0/24 0x3B83 That is the CEF table Activate the MPLS TE tunnel feature on the interface. System Id Type Interface IP Address State Holdtime Circuit Id The route prefix is ​​learned locally by the IGP , but the next hop router of the route prefix must advertise the label mapping message corresponding to the prefix to the local, and the local will assign a label to the prefix. *Aug 18 04:37:06.239: Tun Sender: 1.1.1.1 LSP ID: 20 1178 *Aug 18 09:06:02.699: Flags: (0x7) Local Prot desired, Label Recording, SE Style !! Flags are reflected in the flag Ip cef Net 49.0001.0000.0000.0004.00 Network 10.1.34.4 0.0.0.0 area 0 The configuration of R2 is as follows (the tunnel is not configured temporarily ): Packets with the same processing mode according to the process or IP DSCP field Tunnel mpls traffic-eng path-option 10 dynamic ! To support regional repair R2# show ip route Ip address 3.3.3.3 255.255.255.255 Interface loopback0 ip router isis In all remote labels that bundle a particular prefix , the LSR uses only one of the labels to determine the outbound label for the prefix. RIB , which is the routing table, determines what the next hop of the IPv4 prefix is. The LSR selects the label of the next hop in the routing table that reaches the prefix from the remote label received by the downstream LSR . The LSR uses this information to create its own label forwarding information base, LFIB .