vce braindumps

vce braindumps

10.1.34.3 Mpls ip interface fa1/0 DIS send HELLO interval ordinary packet router of 1/3 (default 3.3s ), which ensures DIS when a failure occurs can be more quickly found. Mpls traffic-eng router-id Loopback0 mpls traffic-eng area 0 Receives packets from other L2 routers in the area and forwards the packets to the L2 routers of other areas according to the destination address (or to the L2 router of the same area ). Receive packets from L2 routers in other areas and forward the packets according to the destination address. i L2 2.2.2.0 [115/20] via 10.1.24.2, Serial0/0 Tunnel mpls traffic-eng autoroute announce tunnel mpls traffic-eng priority 7 7 Available bandwidth Can form adjacencies with other L2 (or L1/L2 ) routers Rational use of network resources !! Activate IS-IS on the interface Interface eth0/1 R1(config)#key chain test R1(config-keychain)#key 1 After the LSP is sent, the SRM is set. Mpls traffic-eng tunnels ip rsvp bandwidth Interface eth 0/1 LSR or LSAck Set-overload-bit suppress external redistribute connected level-1 Network 1.1.1.1 0.0.0.0 area 0 Next hop 10.1.34.3, FastEthernet0/0 via 10.1.15.0/24 valid cached adjacency Link State ID: 1.0.0.0 Opaque Type: 1 201 Then configure it on R1 : description Mpls traffic-eng tunnels mpls label range 200 299 Next Hop Outgoing Mpls traffic-eng tunnels ip rsvp bandwidth Network 10.1.45.4 0.0.0.0 area 1 0 kbits/sec The configuration of R1 is as follows: 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 ): Config Parameters: In CISCO IOS routers, IOS cannot automatically allocate bandwidth-based link (interface) metrics. Regardless of the bandwidth of the link, the default IS-IS metric for all interfaces is 10 , of course you can modify it. The maximum metric for a full path is 1023 . Of course, the IETF has extended the default metric . Tunnel destination 4.4.4.4 tunnel mode mpls traffic-eng Tunnel mpls traffic-eng priority 7 7 tunnel mpls traffic-eng bandwidth 20000 One is the LAN on to Ll Router ( Level-1 to the IS the Hello PDUs the IS LAN ), a method in LAN on to L2 of Router (a to the IS LAN the Hello PDUs the IS Level-2 ) Interface eth0/0 Mpls traffic-eng tunnels ip rsvp bandwidth If this time is specified as 0 , the periodic reoptimize will be turned off in all TE tunnels on the router . Of course, you can turn off reoptimize for a single TE tunnel , the command is as follows: 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 , Path setting option path-option Tunnel mpls traffic-eng path-option 10 dynamic The last byte of the NSAP is used to identify the program on the same device, similar All routers in the IS-IS routing domain will generate LSPs . The following events will trigger a new LSP : Remarks L1 The configuration of R2 is as follows (the tunnel is not configured temporarily ): Options: (No TOS-capability, DC) LS Type: Router Links Test . 3 : SET-overload 'bit-ON-120 Startup 1800s , and is a fixed value 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 . Version=0 length in words=10 TLV Number of Links: 3 To perform the same network segment check (the adjacency must be on the same network segment) The configuration of R2 is supplemented as follows: Prefix Next we R3 and R5 activate the forwarding adjacency, then R3 and R5 will be advertised in this region of the Tunnel- ( L in the manner of direct links). ! Options: (No TOS-capability, DC) LS Type: Opaque Area Link Router isis Router# show mpls traffic-eng link-management bandwidth-allocation LDP is in Frame Mode . The LSR assigns a label to each route. The local direct route is assigned a POP. The initial configuration is as above. In the current environment,vce braindumps, R1 does not activate fastreroute , and R2 does not deploy a protective tunnel . First, in R1 the debug ip rsvp dump-messages On the initial router, is it looking for FIB or LFIB ? 0/0/0 13 supporting agreement Reservable Bandwidth[1]: LDP discovery sources: Network 10.1.12.1 0.0.0.0 area 0 mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 On C , first look up the LFIB table and find that the label is to be popped up, so it will pop up the label and pop up and find it is an IP packet, so go check FIB again. Tib entry: 1.1.1.1/32, rev 2 Type 7 length 12: i L1 2.2.2.0 [115/10] via 10.1.123.2, FastEthernet0/0 5.0.0.0/24 is subnetted, 1 subnets Ip router isis *Aug 18 04:37:06.243: Incoming ResvTear: R2.00-00 Type 1 length 12: The configuration of R2 is similar, so that in the TLV used for authentication in the IIH , the ciphertext after the hash is loaded, and the password is not exposed. OSI PDU Mpls ldp router-id loopback0 mpls label range 300 399 interface fast0/0 The LSP carries the TLV for authentication. The implicit empty tag above has already been introduced, it does increase efficiency, but there is also a problem, because if I receive an implicit null tag sent by a downstream neighbor about a particular prefix bundle, then I am forwarding the tag. Before the data is given to the neighbor, I will first pop the top-level label. Then the pop-up action actually pops up the entire top-level label header, that is, even the fields with the label field, EXP, etc. pop up, and EXP knows For QoS , it is also popped up, meaning that some information for QoS is lost here .