ccna training course

ccna training course

Interface fast0/0 I/E Ip cef CSNP Just throw the next hop of the traffic that meets the conditions to the tunnel interface. Tunnel mpls traffic-eng autoroute metric command. If we add the following configuration to the TE tunnel interface of R2 : Ip cef *Aug 18 11:26:02.546: 10.1.23.3 0 kbits/sec Next , take a look at the Tunnel on R1 : *Aug 18 04:37:06.239: Flags: 0x0 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 . CSPF ( Constrained Shortest Path First ) SPF algorithm with constraints Route-map test permit 10 router isis Fa1/0 Mpls traffic-eng tunnels mpls label range 400 499 0 kbits/sec Keep priority TLV 22 : Extended intermediate-System Reachability Router-id 3.3.3.3 Untag : Pops up all the tags and then forwards them according to the next hop (find FIB table). There are three reasons for the occurrence of untag : Rl , R2 , R3 , R4 running the OSPF , declaring a straight connector, and Loopback interfaces, Loopback port IP of XXXX / 32 , X Mpls traffic-eng tunnels [110/3] via 10.1.23.2, 00:53:36, FastEthernet0/0 1 STYLE Mpls traffic-eng tunnels ip rsvp bandwidth Router-id 3.3.3.3 !! Note area0 and area1 must activate MPLS TE If the weight issue orders without the level parameter, the default is as shown level2 parameters, that is, inject external routes into level2 in this way level2 area can learn to this external routes, but level1 area in Can't learn because R2 is at level1 Of course, when deploying, we strongly recommend that the same tunnel should have the same priority and priority. Set-overload-bit 102 Interface eth 0/1 Is-type level-1 metric-style wide Fa0/0 Neighbor discovery is performed by means of the Hello packet of UDP . The source and destination port of this Hello packet are both UDP646 . Manually reoptimize Virtual link LSR or LSAck Exit Initial database synchronization is performed after the adjacency is established. Intermediate System to Intermediate System (IS-IS) Cryptographic Authentication Label Mapping message Intermediate system adjacent router Path establishment and maintenance 0 kbits/sec Mpls traffic-eng tunnels mpls ip Only the label mapping message of the route prefix advertised by the next hop neighbor of the optimal route is saved locally. In the SWAP process, after the label is exchanged, the inbound label TTL -1 is then copied to the outbound label TTL . 3.3.3.3/32 LSA Interface priority (default 64 ), attention and OSPF difference is that priority 0 of IS are also involved in DIS election Interface tunnel0 201 Ip address 10.1.12.2 255.255.255.0 MAX.Areas maximum area address. Indicates how many different zone prefixes we can configure for a router. value The implicit empty tag above has already been introduced, it does increase efficiency, but there is also a problem, because if I receive an implicit null tag sent by a downstream neighbor about a particular prefix bundle, then I am forwarding the tag. Before the data is given to the neighbor, I will first pop the top-level label. Then the pop-up action actually pops up the entire top-level label header, that is, even the fields with the label field,ccna training course, EXP, etc. pop up, and EXP knows For QoS , it is also popped up, meaning that some information for QoS is lost here .