cisco practice test answers

cisco practice test answers

1.0.0.0/24 is subnetted, 1 subnets Tunnel: *Aug 18 09:06:07.919: 10.1.45.5 (Strict IPv4 Prefix, 8 bytes, /32) The subnet point of attachments is the point at which the subnet service is provided, which is equivalent to the second layer address of the corresponding Layer 3 address ( NET or NSAP ). usually Ip cef i L1 A route 10.1.1.0/24 on E was advertised, and now it is summarized on C. The summary route is 10.1.0.0/16 and is advertised to B. LDP adjacency establishment process See below for more details on how labels are handled. Affinity Bit : 0x0 IGP Metric : 1 [115/10] via 10.1.123.2, FastEthernet0/0 R2.00-00 In front of the IP package. Then this 303 is actually the label assigned to the route of the next hop 10.1.15.0 of BGP route 5.5.5.5 . In other words, LDP does not assign labels to BGP routes, but assigns labels to the next hop (route) of BGP routes. ! The labels constituting the LFIB may not be distributed by LDP , and the RSVP allocation label is used in the MPLS traffic engineering . In the MPLS VPN , AutoRoute: enabled auto-bw: disabled R2-PE1#show ip bgp vpnv4 all labels !! Outbound label 201 , which is given by R2 New object for RSVP-TE extension Then from the tunnel0 port, cost=1+1=2 , better, so the routing table of R2 changes: *Aug 18 04:37:06.239: SENDER_TEMPLATE type 7 length 12: Implicit empty label Domain-wide Prefix Distribution with Two-Level IS-IS Contains information such as the tunnel sender address, LSP ID, etc. The configuration of R2 is as follows (the tunnel is not configured temporarily ): Next-address 10.1.23.3 75000 Metric: 10 10.1.23.2 You can specify the ciphertext lsp authentication of level1 or level2 to carry the cipher text authentication information on the LSP . Router-id 3.3.3.3 Neighbor 5.5.5.5 send-community extended exit-address-family Untagged Mpls ip interface fast1/0 *Aug 18 11:31:44.598: AutoRoute Overview TE tunnel is one-way R2#show ip ospf database router self-originate Area Address(es): 49.0001 SNPA: cc02.1ab0.0000 33000 Network 1.1.1.1 0.0.0.0 area 0 Path option 10, type dynamic (Basis for Setup, path weight 3) LockDown: disabled Loadshare: 2000 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. Network 10.1.45.4 0.0.0.0 area 0 Router ospf 100 Router-id 4.4.4.4 *Aug 18 11:31:44.598: *Aug 18 09:06:07.919: Tun Sender: 1.1.1.1 LSP ID: 247 LABEL L2 rouer redistributes external routes into IS-IS 5.5.5.5 [110/2] via 0.0.0.0, 00:00:01, Tunnel0 0 kbits/sec InLabel : - Mpls traffic-eng tunnels mpls label range 200 299 ISO protocol (data link type on Ethernet is FEFE ), in The interval at which the DIS sends CSNP packets is 10S by default. Interface My Address: 10.1.23.2 Nodes level and area level Outgoing tag or VC !! Bandwidth requirement is 20M R1#show mpls forwarding-table ! Length RESV Time since created: 5 hours, 7 minutes Time since path change: 12 seconds 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 Ip cef Show mpls traffic-eng link-management bandwdith-allocation After completing the above configuration,cisco practice test answers, R2 and R5 will advertise this tunnel in their own Class 1 LSA , just like a direct link. The table eventually forwards this IP packet. C made two searches. This reduces forwarding efficiency. ! Interface eth 0/0 In this way, my network resources will be more rationally utilized. When R1 goes to 1.0/24 and 2.0/24 , traffic will be sent to different tunnels on R1 . At this moment R1 is the head end of my tunnel , and R5 is the end. The tunnel can set bandwidth requirements so that my tunnel can make more scientific and reasonable routing in the network, not just using OSPF metric for routing. The calculation of the tunnel path is done on the R1, which is the tunnel first-end router. In order to enable the head-end router to calculate the tunnel path more reasonably (not only using metric , but also participating in the path with elements such as available bandwidth and link attributes. Computation), we need to extend the link state routing protocol running in the network, in order to flood the information required for more path calculations, extended OSPF and IS-IS can accomplish this task.