ccnp tshoot lab 10-1

ccnp tshoot lab 10-1

Configure BPDUs Ip dhcp snooping Path Rl , R2 , R3 using LOOPBACK neighbor relationship with the address of 1.1.1.1 , 2.2.2.2 , 3.3.3.3 , running OSPF such The message will not be passed to any BGP neighbors. The range is 0-65535 . Network 20.20.20.0 mask 255.255.255.0 If it is injected through the aggregate-address command, next-hop is equal to the update source IP of the summary router . In the above figure, there is a Layer 2 link between the customer and the carrier network. If the client's device is elected as the root bridge for some reason, it is troublesome. Therefore, the rootguard feature can be used to connect the client to the interface of the carrier. Deploy on. Then when these interfaces receive better from the customer 3.3.3.3 Through MED affect route choice 18 The buddy first introduced the above network environment. This Nima is a fairly classic case. OR1 and OR2 are the egress routers of the network, which are respectively connected to the egress lines of Netcom and telecommunications. PAT is implemented on both egress routers , so that intranet users can access the extranet. In addition to OR1 , ? Match ip address prefix-list 1 router bgp 1 Remove the command configured on SW1 in step 2 to restore the experimental environment. (interface) ip load-sharing per-destination Neighbor 10.1.25.5 remote-as 345 no auto-summary Difficult to resolve Write multiple commums in the same line, such as ip community-list 1 permit no-export 12:1111 does not take effect, can not delete these two values Only vlan1 and vlan10 ? Open debug ip icmp on R3 , now R3 goes ping 2.2.2.2 : Therefore, when the deployment is re-released, this problem needs special attention. As for how to avoid the problem, I will introduce it in the following content. When the DAI discards an ARP packet, the switch stores a message in the log buffer , and then generates a system message system information. After the system information is generated, the switch clears the previously stored entries from the log buffer . Each entry contains information such as VLAN , port number, source destination IP address, and source destination MAC address . VTP operation For example, the following three types of point-to-point transmission services: Limit the number of access hosts per port (number of MAC addresses) Configuration Example It does not modify the original data frames, the processing efficiency than 802.1Q higher !! When the route matching ACL1 when V The next hop (the Next Hop) - if present , it identifies a better than advertised router address of the next hop address. In other words , the next hop address it noted , that in the same measure than - advertised subnet router closer to the destination. If this field is set to all 0s (0.0.0.0), the address of the advertising router is the optimal next hop address. It is recognized that the attributes must be followed, and the source of routing updates is clarified. Interface fast0/1 Border Gateway Protocol (BGP) Connected Switch(config-if)# switchport port-security aging type {absolute | inactivity} ! Use set as-path tag to restore, for example, this example on R3 , Ip arp inspection vlan {vlan_ID | vlan_range} FastEthernet0/0 BGP table version is 3, local router ID is 3.3.3.3 We found that although R4 learned these two prefixes through BGP , it is also valid (with * ), but it is not optimized (not best , no > mark). If it is not optimized, it will not be loaded into the routing table. Then why is this? Note that the next hop of the two routes is 10.1.13.1 , and it is worth noting that the directly connected network segment of 10.1.13.0 is not declared into OSPF by R3 . In other words, R4 goes to the next-hop of the two routes. Unreachable,ccnp tshoot lab 10-1, the next hop is unreachable. Therefore, although the two BGP routes are in the BGP table, they are not best and cannot be loaded into the routing table.