ccnp route implementing ip routing

ccnp route implementing ip routing

If there is a tag , it is determined whether the trunk port allows the VLAN frame to enter. Allow the next step, otherwise discard the frame. The interface will not send BPDUs , and will also ignore received BPDUs. Note that this modification will take effect on all routes sent by R5 (the weight of all routes will become 100 ), and Sw(config)#vlan 201 From this experimental analysis, the automatic aggregation of BGP is obtained , and the main class network boundary is not required, which is different from the IGP . Ip prefix-list 1 permit 11.11.11.0/24 ip prefix-list 2 permit 12.12.12.0/24 route-map RP1 permit 10 200 i By AS_PATH influence route selection Write-delay Configure delay timer for writes to URL RSTP port status 200 i Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale Then look at the R4 's BGP table: Optional delivery to simplify the execution of routing policies The route obtained by the BGP speaker from EBGP will be advertised to all its BGP neighbors (including EBGP and IBGP ). The destination IP address of the route , which can be the address of the natural network segment or the subnet address or The 802.1Q Tag contains 4 fields, which have the following meanings: After the data transfer is completed, A to B transmits a data frame to tell B releasable attachment, the communication ends. EBGP neighbors must be directly connected to establish an EBGP session. but 20 Is 2 , 3 with AS the first comparison,ccnp route implementing ip routing, 2 is MED small it is preferable; 2 with a further comparison, one of external routes it is preferably ( MED not compare) , By the spanning tree protocol in a particular port logically Block , in order to achieve redundant physical environment, and the upper floor and preventing the loops R2#sh ip b 100.100.100.0 0 ? R1 , R2 , and R3 run RIP and only announce the direct link between the three. In R1 the ip default-network 172.16.0.0 / / Detailed release ... Encapsulation Status Looking at the BGP table of R4 , we find that: At the same time, the penalty value is reduced at a certain rate. At the end of each half-life, the penalty value becomes half of the original value (if the route is no longer flipped) BPDU format and operation * i BGP must be identifiable and the update message must contain s> 172.16.1.0/24 200 FastEthernet1/0 FIG fancy, initial condition, C interface is elected non-designated port is Block , B sent from the designated port BPDU to C . Let us first consider the case of 802.1D . When the link between Root and B fails, since the interface connected to B on C is BLOCK , it does not send BPDU to B. Therefore, B considers itself to be Root at this moment , so it goes to C. Send yourself a BPDU for Root . Because at this time , the interface of C also stores the BPDU sent by B to the previous B , and this BPDU is compared with the BPDU sent by B to B.It is better, so C ignores these suboptimal BPDUs directly . Until the Max-Age timeout, the BPDUs sent by the previous B stored on the interface of C will be aged. At this time, the interface enters LST and starts to send BPDUs , indicating that the root is Root. . At this point, B accepts the facts and sets the interface that connects itself to C as the root port.