free ccna test

free ccna test

The first 6 is the setup priority and the second 6 is the hold priority . The R2 re-released 2.2.2.0 external route is still there; the inter-area route is gone, except for a R2 local direct connection of 24.0 ; in addition, R1 still does not use R2 as the next hop of the default route. Mpls traffic-eng tunnels ip rsvp bandwidth Interface Tunnel0 *Aug 18 04:37:06.239: peak rate =250000 bytes/sec A pseudonode represents a broadcast multi-access network (including all ISs connected to this LAN ), which actually "as a router" (above, gray router) in the network. In other places, this is a whole. So does this whole have to generate an LSP ? This LSP is generated by the DIS . For IS-IS LSP messages and CSNP and PSNP, see the IS-IS Link State Database chapter. Network 10.1.45.4 0.0.0.0 area 0 Reservable Bandwidth[7]: BandwidthOverride: disabled LockDown: disabled Verbatim: disabled Peer-to-peer network Routers in the network must identify all in order to perform appropriate operations Impact of route summarization on MPLS RFC 2370 describes an extension of OSPF that defines three new LSAs . These LSAs are called sluggish LSAs ( opaque LSAs ) and their differences are limited to the extent of propagation. These LSAs can accurately provide the information required by MPLS TE to OSPF : Ip address 2.2.2.2 255.255.255.255 A copy of the LSP to initiate a cleanup process. This method effectively ensures that other routers in the network clear the corrupted LSP . The corrupted LSP does not participate in the route calculation, and of course it will not be flooded in the network. 200 ! OSI PDU Bw[2]: Router isis Fa0/0 Mpls traffic-eng tunnels mpls label range 200 299 The two important thresholds in the LSP remaining time field are: LSP maxage and LSP refresh interval LSPID Negotiating Label space *Aug 18 11:26:02.546: 3.0.0.0/32 is subnetted, 1 subnets Tunnel mpls traffic-eng path-option 10 explicit name R1toR5 Priority 3 : 9375000 Router(cfg-ip-expl-path)#next-address 10.1.12.2 !! Note the input order Bandwidth: 20000 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF Metric Type: TE (default) Network 10.1.45.4 0.0.0.0 area 0 Next-address 10.1.23.3 Options: (No TOS-capability, DC) LS Type: Router Links Going is the tunnel . therefore: Use the clns host command in global configuration mode to establish a mapping of hostnames to NSAP addresses. In this way, in the link state database, LSP TLV135 : Extended IP Rechability Fa0/0 In fact, this is a metric trick, but when we are thinking about it, remember to take the virtual path of the tunnel into consideration. *Aug 18 04:37:06.239: SENDER_TSPEC type 2 length 36: Attached Interface tunnel0 IGP Area[1] ID:: ospf area 0 System Information:: Oper: up Configure this feature on the A device (usually on the edge device) no mpls ip propagate-ttl About 30.0 / 24 prefix, C allocates a label 23 , the mapping is transmitted to the B ; B local to 30.0 / 24 allocates a label 22 , the mapping is transmitted to the A . Configure on the physical interface: RFC 1195 Or Tunnel Id *Mar 1 00:00:32.759: ISIS-Upd: Building L2 LSP The TTL is placed in the label header. Turning off TTL propagation prevents the MPLS network from being exposed (by traceroute ). Link state ID Network 10.1.34.3 0.0.0.0 area 0 Redistribute connected level-1 LSP , using LSP to carry all routing information Network Next Hop In label/Out label Configure the requested bandwidth of the tunnel MPLS design and implementation Flowspec Setting command 5.5.5.5 [110/31] via 10.1.23.3, 00:03:44, Ethernet0/1 R1 advertisement Loopback route .1.1.1.1 / 32 Link[0 ]:Nbr IGP Id: 10.1.12.2, nbr_node_id:8, gen:47 frag_id 0, Intf Address:10.1.12.1 Network 10.1.34.3 0.0.0.0 area 0 Router(config)#tunnel mpls traffic-eng path-selection metric igp The configuration of R1 is as follows: BGP routing problem, well, now we use the loopback interface on R1 and R4 to establish IBGP adjacency, the problem is solved. At this time R4 , the go 5.5.5.5 next hop of the R1 of Loopback port addresses, R4 at destined to 5.5.5.5 of the IP when the pressure package label, use is 1.1.1.1/32 routing tag, The same is true for R3 and R2 , then the label package can be opened through 1.1.1.1/32 . IS-IS requires the same length of the SystemID in the entire domain . If you receive the IIH , the " System ID Length " field is local to But in the CSPF algorithm, there can only be one path for a destination. When there are many paths that satisfy the basic conditions (this rule can only be made if TE metric , bandwidth, and related attributes cannot be decided): Mpls ldp router-id loopback0 ! Commonalities: R2#show ip ospf database router self-originate 8bit maximum 255 , usually in the labeling when it is the ordinary ip packet TTL direct copy came *Aug 18 09:06:07.919: ADSPEC type 2 length 48: As a result, the Level 1 LSP sent by R1 carries the cipher text authentication TLV . However, since R2 does not enable authentication, the LSPs sent by R1 are sent to R2 . R2 ignores the authentication information in the LSP and directly reads the LSP . Therefore,free ccna test, R2 can learn the route advertised by R1 . Of course, there is no R1 routing. Next-address 10.1.23.3 R2.00-00 Link state messages are used to propagate link and node information in the area (describe the topology of the local network) The TCP/IP protocol stack, similar to ES-IS , is done by ARP , ICMP , and DHCP protocols in the TCP/IP stack . Next Hop lab environment 10.1.34.4 [MPLS: Label 400 Exp 0] 4 msec 0 msec 4 msec IS-IS routing hierarchy Mpls ip View message Interface eth 0/2 Ip address 6.6.6.6 255.255.255.255 *Aug 18 09:06:07.919: average rate=250000 bytes/sec, burst depth=1000 bytes Pop Label Impact of route summarization on MPLS FastEthernet0/0, Src IP addr: 10.1.12.2 Addresses bound to peer LDP Ident: We know that by default, IS-IS is level1 area much like a Stub (but allow people to re-advertise external routes coming in, so just say they look like), Area within the L1 router through a default route to reach outside the region, which have A suboptimal path may be generated because he is looking for the nearest L1\L2 router in the region .