ccna and ccnp certification

ccna and ccnp certification

Redistribute ospf 1 vrf VPN-A match internal external 1 external 2 exit-address-family Bytes tag Outgoing Next Hop Router# mpls traffic-eng reoptimize Ip address 10.1.34.4 255.255.255.0 75000 Hello data unit: sent periodically to determine whether other ISs are running IS-IS , establish adjacencies,ccna and ccnp certification, exchange LSPs , and synchronize LSDBs . After completing the above configuration, we find that the is-is neighbor relationships of R2 , R3, and R3 and R4 are UP . This is because the IIH package does not carry TLV information for verification . In addition, the routing table of R3 is empty. ----------- ---------- The following is the message format of the IIH in the LAN : Record Route: NONE IP subnet Name: R1_t0 Status: In this way , we can exchange visits between 5.5.5.5 and 6.6.6.6 , on R6 . Route-target import 2345:5 No mpls ip propagate-ttl [ forwarded | local ] Net 49.0002.0000.0000.0004.00 Separation of the specified layer 2 intermediate system Policy Routing Policy Route State: Oper; Msgs sent/rcvd: 19/19; Downstream Up time: 00:07:56 Although R5 and R6 can learn each other's routes, they cannot communicate with each other because routing black holes appear on R2 and R3 . The solution is to use MPLS , we turn the Core into an MPLS domain: The label required for traffic in the TE tunnel. 75000 0 kbits/sec Ip cef ! The tunnel priority ranges from 0 to 7. The smaller the priority, the higher the priority. Ip address 10.1.45.5 255.255.255.0 Use the detail keyword to view the details of the LFIB forwarding entry, including the Layer 2 information, and all the label content. If you don't add it, you can only see the top label. Define source Mpls traffic-eng tunnels mpls label range 500 599 Used to publish link state information is somewhat similar to OSPF of LSA stuff Broadcast network value Show mpls traffic-eng link-management bandwdith-allocation TE 's policy routing is no different from traditional policy routing, and it does not change the routing table traffic forwarding based configuration policy. Interface Ethernet0/1 MPLS TE router ID: 1.1.1.1 Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 75000 Bw[2]: AutoRoute basic configuration The IS-IS packets have the same common 8B above , and the additional header fields are different, and then the TLV field. At the time of packet capture , the ternary in the TLV : type, length, variable length content, type and length in the packet, the packet capture software may not be presented, but the type and length can be found from the binary code of the packet capture result. content. Ip router isis encapsulation frame-relay 5.5.5.5 Tun ID: 0 Ext Tun ID: 1.1.1.1 ! Bandwidth: 0 10.1.12.2 Tag rewrite with Fa0/0, 10.1.34.3, tags imposed: {303} Interface fast 0/0 For example, in the above example, tunnel0 is established in R3 to R7 . For R1 and R2 , they do not know the existence of the tunnel . When they go to 7.7.7.7/32 , only the IGP 's own routing is performed. Calculation, then R2 is likely to take the path of R4-R6-R7 , but we may prefer that these traffic can be transmitted through the tunnel , then for this requirement, autoroute can not be achieved, need to use Forwarding ajacency .