ccna prep center

ccna prep center

Network 10.1.12.2 0.0.0.0 area 0 Interface loopback1 Traffic Engineering RouterID TLV (Type 134 ) is mainly used for TE lab environment Type 1 length 52: IS ( layer 0 routing ), then the router will look up the destination address and forward the packet along the best path. Interface FastEthernet0/0 Mpls ip interface fast1/0 TCP connection: 3.3.3.3.33664 - 1.1.1.1.646 Version/ Protocol ID extension: Value is 1 Ip address 10.1.34.4 255.255.255.0 103 RSVP extension to LSP tunnel i ia 10.1.24.0 [115/148] via 10.1.123.2, FastEthernet0/0 i ia 10.1.45.0 [115/158] via 10.1.123.2, FastEthernet0/0 i ia 10.1.34.0 [115/158] via 10.1.123.2 , FastEthernet0/0 C 10.1.123.0 is directly connected, FastEthernet0/0 Router(config)#mpls traffic-eng reoptimize timers frequency ? 0x00000029 ID: path option 10 [1] ISH is sent by IS to ES Globally activate MPLS TE tunnel and set MPLS label space !! This one can be done, you know IS ( layer 0 routing ), then the router will look up the destination address and forward the packet along the best path. *Aug 18 09:06:07.919: Ip router isis encapsulation frame-relay If the headend wants to remove the tunnel , send PATHtear along the tunnel path , and the received node responds to RESVtear , so the tunnel between the two points Reservable Bandwidth[1]: If the payload of the MPLS is an IPv4 packet, load balancing is implemented by hashing the source and destination IP addresses of the IPv4 packet header . RSVP path maintenance and removal Downstream cannot assign labels, no MPLS enabled Mainly contains TE tunnel bandwidth request MPLS TE provides the following solutions: IS-IS routers belong to only one specific area Mpls ip IS reachability Interface Tunnel0 LS age: 43 First of all, all routers run routing protocols, and the entire network is interoperable. Next, LDP is activated on the interface of the router, and an LDP adjacency relationship is formed between the two routers . Ip address 3.3.3.3 255.255.255.255 TE metric is a parameter used to build a TE topology that is completely different from the IP topology (although by default it is equal to IGP metric ) 75000 0 kbits/sec Interface Ethernet0/0 R1(config-keychain)#key 1 2.2.2.2 0 [5] In a typical network design, multiple independent Level1 areas are connected through a backbone network, and the backbone network is composed of routers with Level 2 routing functions. The Level1-2 router has two independent link state databases that support Level1 and Level2 routing , respectively . In IPv4 , the empty tag is 0 ,ccna prep center, and the ipv6 is 2 . Create a TE tunnel on R1 , the path is R1-R2-R4-R5 , and create another backup tunnel path as R1-R2-R3-R4-R5 . This path is used as the backup tunnel of the former . 722 During the establishment of the adjacency relationship, the neighbors send CSNPs to each other (the CSNP is not sent after the adjacency is established ). 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 , 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. Exit Name: R2-PE1_t0 Status: Affinity property Affinity Attributes and mask Interface loopback0 N-SEL 1- byte selector, English: NSAP-Selector is similar to the port in TCP/IP , identifies the process (or service) on the device, and is 00 in NET . Types of Switched Ip cef If a router plurality of distribution on the net, these NET system ID must be the same. Recommendations for Interoperable Networks using IS-IS O Safety and certification ID: path option 10 [36] The level2 route is injected into the level1 area , and these level2 routes can be summarized on the L1/L2 router . The configuration is as above. Interface eth 0/0 ! In the Level1 link state database. Each zone in the IS-IS domain has a unique Level1 link state database. The shortest path is calculated by the SPF algorithm. Is-type level-1 Tunnel mpls traffic-eng path-option 10 dynamic C 10.1.123.0 is directly connected, FastEthernet0/0 i*L1 0.0.0.0/0 [115/10] via 10.1.123.3, FastEthernet0/0 PDUtype : PDU type. This is a 5- bit field that identifies the type of IS-IS packet. A value of 15 indicates L1 LAN IIH ; a value of 16 indicates L2 LAN IIH ; a value of 18 indicates L1 LSP ; a value of 20 indicates L2 LSP ; a value of 24 indicates L1 CSNP ; a value of 25 indicates L2 CSNP ; a value of 26 indicates L1 PSNP A value of 27 indicates L2 CSNP . (Tunnel0) Destination: 5.5.5.5 Remote binding: tsr: 2.2.2.2:0, tag: 201 tib entry: 10.1.12.0/24, rev 10 Level1 have level1 of DIS , Level2 have Level2 the DIS , the election results may differ Layer 1 and Layer 2 set different metrics. Basic concept of FRR Seq# Checksum Opaque ID 0/0/0 And R2 routing table at the moment is such that: R1#show mpls traffic-eng tunnels 1.1.1.1 0 [521] *Aug 18 04:37:06.239: SENDER_TEMPLATE type 7 length 12: Fa0/0 !! Backup tunnel Indicates the available status of a router resource. If the bit is set, it indicates that the router is overloaded. Overloading means that the performance of the router is suppressed due to insufficient CPU and memory resources. It was set overload field that LSP does not diffuse in the network and is calculated by the overload routing the router will not use the LSP .