ccnp switch network lessons

ccnp switch network lessons

Bgp confederation identifier 345 bgp confederation peers 64513 neighbor 3.3.3.3 remote-as 64512 CISCO default MED is 0 By default , the rate on the DAI untrusted interface is 15 pps , while the trusted interface is unlimited. Both R1 and R2 are connected to the 2.2.2.0 network. At this time, R3 goes to ping 2.2.2.2 . Because the static route of the outgoing interface is used, R3 thinks that 2.2.2.0 is a locally connected network, so ARP request is sent , R1 , R2 , can receive the request message, and both respond to the request message (the premise two Tags Technical analysis: An important improvement in RSTP is the rapid transition of ports. The traditional STP algorithm needs to go through several timers before transitioning an interface to the forwarding state. In order to get a fast convergence of the network, we may adjust the timer, but this method may affect the stability of the network. h routed ( dampening ) route, route may be faulty ( down ), with historical information, but no optimal route 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 route -map used by exist-map has at least the following two match statements: Route poisoning Dhcp-bindings none —Does not log packets that match DHCP bindings. Use the sticky MAC address on the port-security interface Default Port-Security configuration Neighbor 10.1.25.5 remote-as 345 no auto-summary Bibliography LP takes the maximum value of LP in the detailed routing Set traffic-index 30 Router bgp 100 R3 and R4 , R4 and R5 establish IBGP neighbor relationships, and R3 R4 R5 uses LOOPBACK as the update source and refers to the neighbor . To increase the reliability and redundancy of the network, we let R1 and R2 are 100.0.1.0 and 100.0.2.0 injected into BGP , here is the simulation of a redundant environment, that we can through R1 , also by R2 Go to 100.0. 1.0 and 2.0 networks. Route-map test permit 10 set community ? TblVer InQ OutQ Up/Down State/PfxRcd Lease(sec) Type ? Protocol overview (Update source verification failed), on the other hand, R2 will not receive the 1.1.1.0 route from R1 , and then pass the same interface, with 11.1.123.2 Preferably , the routes sent by the EBGP neighbors (relative to the IBGP neighbors) are preferred to the EBGP routes in the EBGP and IBGP . Note that the first six rules in the BGP routing rules cannot be determined. Only in case of circumstances. Configured MAC Addresses : 0 !! Manually configured secure MAC address, not here Match ip address Number of existing VLANs 8 Promiscuous port capable pVLAN communicate with any device, regardless of the other master is in the VLAN , or secondary VLAN. VLAN 15 bits with the current 10 th, then the support up to 2 of the 10 power = 1024 th VLAN 201 200 100 The original attribute is i , so R3 and R4 learn BGP route 1.1.1.0 from R1 and R2 at the same time . After the decision, the traffic to 1.1.1.0 will be sent from R2 to R1 , so the sub-optimal path is obtained. R 3.0.0.0/8 is possibly down ,ccnp switch network lessons, routing via 9.9.12.2, FastEthernet0/0 Clear the dynamically learned security address entries on the interface. Async Async interface Interface loopback2 The experiment is completed here, we set MARK , then we will analyze the impact of various attributes on the routing. Use a hold-down timer to prevent routing loops The configuration of SW1 is as follows: Activate Port-Security (on the access interface) Switch(config-if)# ip address 192.168.255.1 255.255.255.0 IP address Dhcp-snooping Neighbor 5.5.5.5 update-source Loopback0 no auto-summary We know that the AD value of a static route is 1. The above configuration method actually changes the AD value of the static route to 10 . In this way, we have two default routes, one for the telecom exit, the AD value is the default 1 ; the other points to the education network exit, and the AD value is 10 . Then after Router#show ip route VTP Version capable LocPrf 16 bits The default is 32 Tiao This global configuration command creates a route-map that uses a custom string to represent this route-map . You can do this in a R3 , R4 , and R5 use OSPF to ensure inter- AS routing interworking, and use loopback to establish BGP neighbors. The switch receives the DHCP request , which inserts option82 information into the message (of course, you must do the corresponding configuration first). In the inserted information, the remote-ID suboption is the MAC of the switch ; the circuit-ID suboption is received. The interface ID to the DHCP request message . Passive-interface *>i Set ip next-hop 11.1.1.2 exit Next, look at RP , SW2 has two interfaces, both of which will receive BPDUs , all from SW1 , so the cost of the first two BPDUs to root is 0 , equal; the sender ID of the sender is due to the same switch, and therefore equal, less out; and then compare the two BPDU port ID , that is, SW1 on both port interface ID , we assume that the two interfaces equal priority, then the ratio of these two ports The interface ID , and finally select the root port F0/1 on SW2 .