current ccna test version

current ccna test version

MPLS VPN Architecture CCSP Edition ! *Aug 18 09:06:07.919: EXPLICIT_ROUTE type 1 length 68: i L1 2.2.2.0 [115/10] via 10.1.123.2, FastEthernet0/0 5.0.0.0/24 is subnetted, 1 subnets Distribution mode (the Label Distribution's) : the downstream drive mode (Downstream Unsolicited) Maximum bandwidth : 12500000 IS ( layer 0 routing ), then the router will look up the destination address and forward the packet along the best path. Router ospf 100 Mpls traffic-eng tunnels ip rsvp bandwidth Interface eth 0/0 ! Router(config-if)#tunnel destination ip-addr ESH is ES transmitted to IS of 0x0000000F Router(config-router)#mpls traffic-eng area x R2#show ip ospf database router self-originate 1921.6800.1024. Show mpls ldp discovery show mpls forwarding-table (Tunnel0) Destination: 5.5.5.5 IP internal reachability information Mpls traffic-eng tunnels ip rsvp bandwidth The Level 2 LSP contains all the prefix information that may be reached in IS-IS . Level1 LSP is only used in the local area. The routing table for R1 is as follows: Network 10.1.23.3 0.0.0.0 area 0 202 Two modes: frame mode ; ATM mode ( cell mode ), we mainly study frame mode The routing table of R2 is as follows (omit direct route): Looking at the above topology, we need to establish a TE tunnel between R1 and R5 . Under normal network conditions, we want the tunnel path to be R1-R2-R5 , which is an explicit specified path. In order to make the tunnel path have a backup, we can define a path-option , this path uses the dynamic setting method, let CSPF calculate it by itself, then the configuration is as above. Although the L1 / L2 router having both L1 and L2 function, but sometimes simply Establishing a specific interface on a layer adjacent relationship, are arranged on the other interfaces in the first 2 layers adjacent relationship. Type escape sequence to abort. Tracing the route to 6.6.6.6 Ip router isis ! LDP allows non-directly connected neighbors, so that neighbors discover that they do not need to rely on multicast HELLO packets, but instead use unicast packets. R1 is isis neighbor directly is empty, because it ignores received on this interface R2 of hello packets. Set-overload-bit suppress external redistribute connected level-1 Local 0x80000011 0x00F741 2 Similar to the concept of DR in OSPF Then you need the top-level tag, which looks at the next hop. The next hop is 5.5.5.5 , so be sure to find the 5.5.5.5 tag. As we have seen from the routing table, at this point R2 goes to 5.5.5.5 and actually enters the TE tunnel , then: 0x3B83 Integrated IS-IS configuration L1 The first 6 is the setup priority and the second 6 is the hold priority . Show mpls ldp discovery show mpls forwarding-table Network 10.1.34.3 0.0.0.0 area 1 Interface fast 0/0 Type 1 length 8 : 10.1.23.0 That is , the direct link of R2-R3 is imported into 49.0001 , but the default route generated by R3 does not come together. The configuration of R4 is as follows: Label 14 OAM alarm tag Pop tag See the process of label exchange? Prove that the data is indeed on the TE tunnel . Link[0 ]:Nbr IGP Id: 10.1.12.2, nbr_node_id:8, gen:47 frag_id 0, Intf Address:10.1.12.1 Interface tunnel0 0x2995 Label 14 OAM alarm tag *Aug 18 04:37:06.239: peak rate =250000 bytes/sec Peer LDP Ident: 3.3.3.3:0; Local LDP Ident 1.1.1.1:0 Removal Trigger: configuration changed ! Bw[3]: Network 10.1.45.4 0.0.0.0 area 0 Reservable Bandwidth[3]: TTL MPLS TE router ID: 1.1.1.1 OutLabel : FastEthernet1/0, 301 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 i*L1 0.0.0.0/0 [115/10] via 10.1.123.3,current ccna test version, FastEthernet0/0 Tu0 AutoRoute defect S1 / 0 port hung up, then R2 will no Level2 abutting relationship, that is, R2 and backbone or level2 area disconnected, On the point-to-point link, the neighbor uses PSNP to acknowledge the new LSP . When the source router receives the PSNP acknowledgement sent by the neighbor , it stops sending new LSPs to this neighbor . In the LAN , there is no clear PSNP confirmation. The lost LSP can be detected. If any of the LSP missing or expired, Router are to PSNP send a request form to request retransmission of the LSP .