ccnp switch router alley

ccnp switch router alley

Access port processing frame process Here we are talking about is the switcher, as we all know, is not recognized by the switcher Layer 3 packet, which they will not see a three-tier I head, but this does not affect a switcher own IP address. On the router, we configure the IP address of the physical interface of the router , and the second layer After the basic BGP configuration is complete , R1 establishes an EBGP neighbor relationship with R3 , R2, and R5 . R3 establishes an IBGP neighbor relationship with R4 , R4, and R5 (using the LOOPBACK interface as the update source). R5 release B segment RIP routing, R2 and R3 can learn,ccnp switch router alley, at the moment we are in R2 and R3 are on to OSPF to inject RIP routing, assuming that R2 injected first, then the B route will be R1 update to R3 , R3 this When you learn B routing from both RIP and OSPF , then it will: Optimum and Distributed Switching Identify the type of message: So far, we have completed the basic configuration, then can ping the same 100.0.1.1 and 2.1 from R4 ? After the trial , we must get a negative answer. This is because there is no route in AS345 on R1 and R2 , that is, the backhaul route has a problem. In this topology, we can configure the backhaul route on R1 and R2 or Default route to complete the test of the experiment 86025 By default, BGP does not allow static default routes to be injected when static is re-released ; unless it is in the BGP process at the same time default-information originate Internal 4.4.4.4 The configuration of R3 is as follows: In this case R1 on to R4 used strategy, 10.0 route AS_PATH insert 100 of AS number, while the results for the R4 over (64514) 100 100 , on the other side of R3 over 300 200 is 100 , R5 still preferably R4 , as ( 64512) Does not participate in the AS_PATH length calculation. The length of the AS_PATH is to influence the path selection. It is not recommended in the actual environment. Preference , will trigger Notifacation message , causing session interruption; but can use IN on AS border router Router (config) #server dhcp turn on DHCP services. By default, the Cisco IOS DHCP server and relay agent features are enabled on your router The core layer switch SW2 also enables dhcp snooping . By default, all ports are untrusted . If the fast0/24 port of SW2 receives the dhcp packet carrying option82 , it is discarded. One of the solutions is to configure the fast0/24 port of SW2 as the trust interface. However , the dhcp message received by the trust interface does not create a dhcp snooping binding entry. Another way is to use the command: ip dhcp snooping information option allow-untrusted . This command is used to carry the DHCP packet of option 82. The dhcp snooping binding entry is created locally .