ccna routing and switching exam code

ccna routing and switching exam code

Priority 0 : 9375000 We see that after the BGP neighbor relationship is up , R2 immediately triggers an LSP , and the overload is set before the LSP is cleared . Mpls ldp router-id loopback0 value Router isis [115/10] via 10.1.123.2, FastEthernet0/0 MPLS VPN Backbone carried out within for MPLS TE in the OSPF extensions and R1 build on a TE the Tunnel , for their own sources of the Loopback0 , for the purpose of R5 is 5.5.5.5 Mpls traffic-eng tunnels mpls label range 300 399 The configuration of R1 is as follows: *Aug 18 09:06:07.919: Error Value: 0x5 (No route available toward destination) Then configure it on R1 : Net 49.0001.0000.0000.0001.00 We see that R1 these inter-area routes are still there, but R1 no longer refers to the default route to R2 . Label subobject: Flags 0x1, C-Type 1, Label 200 4.4.4.4/32, Flags: 0x20 (No Local Protection, Node-id) Label subobject: Flags 0x1, C-Type 1, Label 403 5.5.5.5/32, Flags: 0x20 (No Local Protection, Node-id) Src 2.2.2.2, Dst 5.5.5.5, Tun_Id 0, Tun_Instance 5 RSVP Path Info: IS-IS can be used purely for IP routing, or it can be used purely for ISO routing, or both. Next, look at R3 : This behavior will continue until the RESV message arrives at the head end router of the TE tunnel LSP . That is, after the request is made by the head end router, the label is advertised hop by hop from the tail router to the head end router. This shows that the TE tunnel uses the downstream passive DOD label distribution. Metric: 10 Filter_Spec Interface eth0 0/0 R3#show mpls forwarding-table 201 Path Protection ISs flood new LSPs to all neighbors Globally activate MPLS TE tunnel and set MPLS label space *Aug 18 09:06:07.919: OSPF , this is not the same as other IGP protocols. Therefore,ccna routing and switching exam code, if you want to make the routing full, you need to add a re-release directly to R3 . Mainly used to replace type 2 TLVs to provide larger metrics. In addition, it also supports IS-IS based MPLS TE 0/0/1 Then show it: The LSR does not need to re-establish an LDP session, and the efficiency of convergence is improved. !!! What is the difference between POP and Untag in Outgoing tag(Label) ? Type escape sequence to abort. Tracing the route to 6.6.6.6 [Supplement] The non-pseudo-node LSP represents a router , including all ISs and LANs connected to this router . Pop tag RESV Point2point Interface eth 0/0 R1 is isis neighbor directly is empty, because it ignores received on this interface R2 of hello packets. LDP initial/maximum backoff: 15/120 sec LDP loop detection: off Mpls traffic-eng tunnels ip rsvp bandwidth The IS-IS adjacency on the LAN is still different from the P2P link: !! Note that running MPLS , IP cef must be turned on After saving the configuration restart R2 , the R2 after the restart is completed, ISIS lead convergence, but this time bgp Write convergence completion, so R2 resulting LSP in overload set, from R1 the following results can be seen, during this time, R1 is not R2 will be used as the next hop to other networks ( except for the network directly connected to R2 ): Environmental description The routing protocol in the IP network forwards the data packet according to the minimum metric principle. RFC 2205 Resource Reservation Protocol (RSVP) 3.3.3.3 The label mapping message that is advertised locally is meaningful to the global . The labels corresponding to the same FEC advertised from different interfaces are the same. Advertising Router: 1.1.1.1 LS Seq Number: 80000001 Config Parameters: 4 10.1.12.1 1060 msec 984 msec 1080 msec Clear text area certification Reservable Bandwidth[2]: Targeted Hello 2.2.2.2 -> 4.4.4.4, active ! Mpls traffic-eng tunnels ip rsvp bandwidth State: Oper; Msgs sent/rcvd: 19/19; Downstream Up time: 00:07:56 Interface Tunnel0 R1#show mpls traffic-eng tunnels NLPID that identifies the network layer protocol packet is a 8 -bit field, the IPv6 is NLPID value 142 ( 0x8E ). If the IS-IS router supports R1# traceroute 5.5.5.5 Traceroute 1.1.1.1 source 10.1.35.5 Basic Experiment 1 ( OSPF ) The table eventually forwards this IP packet. C made two searches. This reduces forwarding efficiency. Ip address 10.1.23.3 255.255.255.0 R1#show mpls forwarding-table Local label info: global/16 *Aug 18 11:26:02.546: Router bgp 2345 Maximum bandwidth : 12500000 Can be used on R5 : For the HDLC (Advanced Data Link Control) interface, SNPA is set to " HDLC " LSP overview 10.1.45.4 10.1.45.5 Now we will complete the following configuration on R2 : System Id Type Interface IP Address State Holdtime Circuit Id MPLS TE Router ID: 2.2.2.2 The loopback0 address of all devices is xxxx/32 , and x is the device number. R1# traceroute 5.5.5.5 R4#sh mpls tr tun Extended IP reachability reachability TLV (type 135 ) The configuration of R3 is as follows: In IOS , the normal router hello interval defaults to 10S , and the DIS defaults to 3.3S . Ip explicit-path name R2R4R5 enable next-address 10.1.12.2 1.1.1.1/32 MTU , then it is possible to first slice and then pass, and then use this slice number to indicate ( 0 is the first segment, 1 bit second segment, and so on), the maximum length of a single LSP is 1492 bytes, the most Can be divided into 255 pieces. IS-IS performs fragmentation when generating LSPs instead of generating large LSPs first , and then fragmenting them at the network layer (for example, IP ), thereby achieving the negative effect of reducing CPU resource waste.