ccnp route book

ccnp route book

Protocol overview When 10.4.0.0 is hanged , C will immediately send a route poisoning message ( 10.4.0.0 16 hops) and then advertise it; To this end, some organizations and manufacturers propose to layer the data link layer, which is divided into logical link control sub-layer ( LLC ) and media access control sub-layer ( MAC ). Such different physical layers correspond to different MAC sublayers, and the LLC sublayer can be completely independent. As shown in Figure 1-4 . Through AS_PATH affect route choice 14 The smaller the MED, the higher the priority A valid entry in the database matches these ARP packets. At this time we look at the state of the trunk on SW1 : Whenever a reflector receives a route whose Cluster-list attribute already contains the ClusterID of the cluster , the route will not be reflected based on the purpose of the anti-ring. 192.168.123.2 as the next hop better, then R2 subsequent packets sent to R2 . Since the configuration of the first experiment Rl , therefore R2 Flights 13 segments, it is preferable that Rl , this time in R2 a clear click BGP neighbor Rl , and the Rl BGP connection DOWN , R2 Flights 13 routes and preferably the R3 , After R2 and R1 restore the BGP connection and receive the 13 route update of R1 again , R2 is still preferred to R3. ? FastEthernet0/0 On: channel member without negotiation ( no protocol ) 10.1.12.2 C 192.168.12.0/24 is directly connected, Serial0/0 1.0.0.0/24 is subnetted, 1 subnets In order to verify this rule, we first maintain the basic BGP configuration. Introduce 100.0 by using network on R1 The configuration of R1 is as follows: Update behavior After completing the configuration, R2 show ip route !! vlan10 activates DHCP snooping The configuration of R1 is as follows: The front is to use static routing. If dynamic routing protocol is used, the situation is different. For example, IGRP or EIGRP , the network specified by the ip default-network command must be obtained through IGRP or EIGRP (declaration, learning or redistribution). ), the default route can be dynamically passed to other protocol routers. Weight Origin IGP, metric 0, localpref 100, valid, internal, best Originator: 1.1.1.1, Cluster list: 2.2.2.2 : Disabled Option 82 sub-option 1 is the circuit ID ,ccnp route book, which indicates the circuit identifier of the received DHCP request message. This identifier is meaningful only inside the relay agent node. The server side cannot parse its meaning, only as a meaningless one. Logo use. In general, the default is the access switch VlanID that receives the DHCP request packet and accesses the Layer 2 port name, such as Vlan2+Ethernet0/0/10 . The user can also specify its own proxy circuit ID . Usually sub-option 1 and sub-option 2 are used together to identify the information of the DHCP client.