ccnp routing and switching pdf 2018

ccnp routing and switching pdf 2018

( Well-known discretionary ) TIMER Weighting 100 (default 100), thresholds: lower 1, upper 100 version However, we found that R4 did not pass these two routes to R5 , which is because of the effect of IBGP 's horizontal splitting principle. According to the IBGP split horizon principle, a BGP router, if it learns BGP routes from its IBGP neighbors , will not be able to pass these BGP routes to other IBGP neighbors. The reason for setting this rule is that BGP anti-ring needs to resort to Remote-ID type However, at this time, R3 will also receive the summary route from R2 release, which may form a routing loop, so it needs to be filtered out. Add configuration on the BGP process on 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. FastEthernet1/0 Match ip address prefix-list 1 100 s> 172.16.1.0/24 Switch B receives the TCN BPDU , sends a TCN ACK to confirm, and forwards the TCN BPDU to its own root port. Y In the initial situation, when R2 updates 192.168.12.0/24 route to R3 ,ccnp routing and switching pdf 2018, we look at the attributes of the route prefix in the updata message: DLY=2560 , because the DLY of the R2 F0/0 interface is 100 microseconds. The unit in the message is 10us , so 10*256=2560 , this value is the value carried in the DLY field in the message . The value of the bandwidth is also similar. This can all be calculated, no problem.