ccna practice papers

ccna practice papers

Ip address 4.4.4.4 255.255.255.255 Used to publish a complete link state database on a router , CSNP is used to inform other routers of their own database may be outdated or lost LSP . *Aug 18 09:06:02.699: Controlled Load Service break bit=0 service length=0 !! Configure the is-type of the device , the default is level1-2 Or ISIS will flood the LSP . Based on the information in the link state database, the almost identical algorithm, the SPF algorithm, is used to calculate the optimal route. Password: not required, none, in use Ip address 10.1.34.3 255.255.255.0 Interface loopback0 ip router isis R1 is based on the remaining two paths, then compare TE metric (default is equal to IGP Metric ) IS-IS adjacency on a point-to-point link Traditional IP routing only considers metric when routing . For example, if we are running OSPF in the above figure , then R1 to 1.0/24 and 2.0/24 will preferably be from R2 to R3 . Path because the metric is small. Then this directly causes the idle of another optional path and the excessive congestion of the main path. 0x00000011 Regional merger No frame-relay inverse-arp The interface will be created. We just need to put the traffic into the tunnel port, there are still a lot of methods, we will continue to introduce in the following content. PATH Mpls traffic-eng router-id Loopback0 mpls traffic-eng area 0 Interface Ethernet0/0 IS-IS Level-1 Link State Database: In an actual environment, MPLS TE is often deployed only in a few core nodes . The edge node cannot sense the existence of the TE tunnel and can only select routes according to the traditional IGP . ! ! R1 is isis neighbor directly is empty,ccna practice papers, because it ignores received on this interface R2 of hello packets. And the link TLV is described for carrying a series of MPLS TE sub-unit of the link TLV , regarding the sub- TLV is described as follows: Router-id 2.2.2.2 However, there may be such a problem that the LDP connection between R1 and R2 is broken for some reason, but between R1 and R2 . Interface eth0/0 9 Configuration command I mentioned the four metric types of IS-IS . The bits that can be used in each metric are the lower 6 bits. That is to say, the maximum interface metric is 63. We propose several new TLVs to make up for this defect. // Prerequisites for advertising a label mapping message to a neighbor locally Interface eth 0/1 ! The configuration of R2 is as follows: 10.1.23.3 [MPLS: Label 300 Exp 0] 108 msec 116 msec 64 msec *Aug 18 09:06:07.919: parameter id=127, flags=0, parameter length=5 Only when a neighbor solicitation label mapping message to the local strip prefix , local will announce the label mapping messages to neighbors Router-id 3.3.3.3 Set-overload-bit suppress interlevel *Aug 18 11:31:44.598: 201 Current LSP: Ensure reliable diffusion of LSPs on point-to-point links Se1/0 Link Link Forwarding Adjacency forwarding adjacency (Link ID) Designated Router address: 10.1.23.2 (Link Data) Router Interface address: 10.1.23.2 Number of TOS metrics: 0 Mpls traffic-eng signalling interpret explicit-null verbatim LAN Priority: 64 Format: Phase V The TLV field of the LSP . Here, in addition to the system ID that contains the neighboring IS , there is a bunch of metrics. MPLS TE traffic forwarding Path-number } } [lockdown] Mpls ip interface fast1/0 The configuration of R1 is as follows ( R2 does not open area password temporarily ): Interface eth 0/0 !! Set MPLS TE routerID Reservable Bandwidth[0]: 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 Provide the best route for the network *Aug 18 04:37:06.239: parameter id=127, flags=0, parameter length=5 LSPID RSVP uses PATH and RESV messages to pass signaling in one path. The TE head end router sends a PATH message to the tail router. 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 . You can specify the ciphertext lsp authentication of level1 or level2 to carry the cipher text authentication information on the LSP . Regional association. The L1/L2 router sets this field in the L1 LSP it generates to notify the L1 routers in the same area to connect themselves to other areas. Usually, the L2 backbone area is connected. When the router in the L1 area receives the L1 LSP from which the ATT bit sent by the L1/2 router is set , it creates a default route to the L1/2 router so that data can be routed to other areas. Although the ATT bit is defined in both the L1 LSP and the L2 LSP , it will only be set in the L1 LSP , and only the L1/2 router will set this field.