ccnp exam papers

ccnp exam papers

Provide network stability Tspec: ave rate=20000 kbits, burst=1000 bytes, peak rate=20000 kbits RSVP Resv Info: Parameter id=127, flags=0, parameter length=5 Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 After flooding related information through the IGP protocol ( OSPF or ISIS ), all TE routers form a unified TEDB in the area. ! Interface Loopback0 Tunnel mpls traffic-eng autoroute metric absolute y Next, R2 receives the tag packet. R2 knows that this is a tag packet from the type field of the Layer 2 Ethernet frame header of this packet, so it looks for its own LFIB table: Therefore, we activate the forwarding adjacency feature on the CISCO IOS router, except that the TE tunnel endpoint router advertises the tunnel as a direct link, and also considers the tunnel when it performs the SPF algorithm calculation . And if we modify the IGP of the tunnel port Interface Ethernet0/1 Peak rate Router ospf 1 R3#sh mpls forwarding-table After flooding related information through the IGP protocol ( OSPF or ISIS ), all TE routers form a unified TEDB in the area. Use the following command to see the relevant information: Flowspec Using domain authentication, IIH packet, CSNP , PSNP is not carrying authentication information, LSP is used to carry the authentication TLV . NSAP address to host name mapping 0.1.123.2 description ISIS in NBMA environment Frame-relay map ip 10.1.123.3 103 broadcast frame-relay map clns 102 broadcast Outgoing The label assigned to the prefix is available on any local MPLS interface and will be distributed to all LSR neighbors. Router(config)#tunnel mpls traffic-eng path-selection metric igp 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. Network 10.1.23.2 0.0.0.0 area 0 Now A has a user sending data to the 30.0 network, and A pushes the data onto the tag header with a tag value of 22 . Label packet to B , B to replace the label to 23 , then passed to the C . 5.5.5.5 [110/31] via 10.1.23.3, 00:03:44, Ethernet0/1 R5 configuration is as follows 100 . An MP-iBGP connection is established between R2 and R5 . Adding the force keyword will take effect immediately. Otherwise, only when the interface selected as the routeriD is DOWN , the reselection will be performed. Note: The router ID of the LDP neighbor must have reachable routes locally. Untagged Ip router isis Interface loopback0 Router(config)#interface tunnel0 Mpls ldp autoconfig area 0 You can specify the ciphertext lsp authentication of level1 or level2 to carry the cipher text authentication information on the LSP . ATT/P/OL O C It is also to check the FIB table, find 301 corresponding to the tag outgoing label is PoP and the next hop is D , then the head will pop up labels, which expose the original IPv4 data, C will be to the packet D . Router ospf 1 RFC1195 Ensure reliable diffusion of LSPs on point-to-point links *Aug 18 09:06:07.919: Outgoing 1.0.0.0/32 is subnetted, 1 subnets 3bit experimental bits for QoS SSN ( send Sequence Number ): send serial number flag 10.1.23.3 [MPLS: Label 300 Exp 0] 108 msec 116 msec 64 msec New object for RSVP-TE extension 6bits description Let's start with a brief introduction: RSVP-TE requests to establish an LSP tunnel according to the above path. The label assigned to the prefix is available on any local MPLS interface and will be distributed to all LSR neighbors. *Aug 18 11:31:44.598: Route-map test permit 10 router isis ! Router(config)#interface fast0/0 LS age: 29 IGP System ID: 2.2.2.2 Certification Information Ip cef Downstream cannot assign labels, no MPLS enabled Ip router isis Interface Loopback0 R2 (config-router)#authentication key-chain test level-2 R2 (config-router)#authentication mode md5 level-2 ...... ! 1194 Area 2 -byte area identifier, also referred to as Domain from the upper portion (the portion defined HODSP is ) used to Domain Expense metric Interface eth0 0/0 Now the initial environment, R1 can learn inter-area routes, and R2 locally re - routes to level 1 route 2.2.2.0 . Of course, since R2 sets the attached-bit , R1 also generates a default route to R2 . Bytes tag Frame-relay map ip 10.1.123.1 301 broadcast 1.1.1.0 is directly connected, Loopback0 2.0.0.0/24 is subnetted, 1 subnets MPLS TE router ID: 1.1.1.1 SNPA is equivalent to the Layer 2 address of NSAP or NET . Complete the routing information exchange between the area and the backbone where it is located, and assume both the responsibility of L1 and the responsibility of L2 . Modify the ldp hello message sending interval, the default 5S Set-overload-bit Dynamic Hostname Exchange Mechanism for IS-IS 16 Fa0/0 Mpls traffic-eng tunnels ip rsvp bandwidth Interface FastEthernet0/0 10.1.23.3 *Aug 18 09:06:07.919: SENDER_TSPEC type 2 length 36: The configuration of R1 is as follows: AutoRoute metric The interface of each router activates RSVP and MPLS TE tunnel support. So using this feature (an IS-IS process to configure multiple NET addresses), you can achieve: SNPA is equivalent to the Layer 2 address of NSAP or NET . 55000 0 kbits/sec Upon receipt of this PATH message, the tail router will return a RESV (reserved) message along the same path used by the PATH message, except that the direction is reversed. The RESV message contains the label that RSVP assigns to the tunnel . ID: path option 10 [8] !! Set MPLS TE routerID Interface eth 0/0 Bw[3]: NET Explicit_route Path option 10, type dynamic (Basis for Setup, path weight 3 ) Router ospf 1 Router isis Tunnel mpls traffic-eng priority 7 7 tunnel mpls traffic-eng bandwidth 20000 Interface Ethernet0/1 202 View message Options: (No TOS-capability, DC) LS Type: Opaque Area Link Then, if you are in the tunnel port on R1 , use the following configuration: 1.1.1.1/32 *Aug 18 04:37:06.239: SESSION type 7 length 16: IS ( layer 0 routing ), then the router will look up the destination address and forward the packet along the best path. Oper: up 0 kbits/sec R2#sh isis neighbors Set-overload-bit on-startup 120 Global Pool Since the IP prefix in the IS-IS area is the leaf of the SPF tree,ccnp exam papers, part of the route calculation ( PRC ) is more, usually this means that in one *Aug 18 09:06:07.919: Minimum Path Bandwidth (bytes/sec): 2147483647 LSP maxage defines the lifetime of the LSP . The default is 20 minutes, which is 1200S . You can use the lsp-max-lifetime command to modify it. When an LSP originates from a router, its remaning timer is set to LSP maxage and then flooded in the area. At the same time, the LSP 's remaining time is counted down. When the countdown reaches the LSP refresh interval , that is, the reduced time is equal to the LSP refresh inverval , the LSP originating router regenerates the LSP and floods it out. Otherwise the LSP will continue to survive, knowing that the remaining time-to-live field value is reduced to zero , and then the network is clear.