ccnp switch 300-115 answers

ccnp switch 300-115 answers

DAI relies on DHCP snooping technology. In a network environment where users dynamically obtain IP addresses, we deploy DHCP. 1,20,30 Cc00.043c.0000 (10.1.1.253) local BGP routing table entry for 100.100.100.0/24, version 3 Paths: (2 available, best #1, table Default-IP-Routing-Table) Multipath: eBGP Bgp inject-map RP_mingxi exist-map RP_huizong copy-attributes ? ( 802.1D is always 0 ) The above command will also tag native vlan Select interface mode according to specific protocol FastEthernet0/0 Access-list 1 permit 1.1.1.0 FastEthernet1/0 Milne 's packet was sent to Roo because he learned the wrong one. ( If MED is empty , it is set to 0) * i100.0.2.0/24 Protocol basis internal 100 The following priorities are reduced in order: default-originate (for each neighbor configuration), default-information-originate (for each address cluster configuration), network , redistribute , aggregate-address Ip address 5.5.5.5 255.255.255.0 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 . Use set as-path tag to restore, for example, this example on R3 , Then on R4 , you can only learn 1.1.1.0 . Route-map test deny 10 match tag 1111 After Port-Security is enabled, related parameters have default configuration. Must be a zero field. When the RR sends a route update to an EBGP neighbor, it will be aware of the existing CLUSTER_LIST attribute. 10.1.13.1 If you configure the following, then the COST comparison will exceed the weight and become the most preferred comparison rule. Vlans allowed on trunk Ip policy route-map PBR 1 Neighbor 10.1.12.2 route-map test out Any 10.1.23.2 Distribute-list 1 in The larger the Local_Pref , the higher the priority 159 220 , 91 70 Neighbor 10.1.23.3 remote-as 300 One point and one asterisk, match all, any For Dot1Q MTU = 1522 ? ! \ Sw(config-if)#switchport private-vlan host-association 100 201 * Available routes (next-hop reachable ) In R4 connected R2 interfaces capture found update package 11.11.11.0 attribute prefix is carried in the AS_PATH , content of AS 1 We expect the effect of the above configuration is implemented R1 to 100.0.1.0 routing setting MED = 100 , 2.0 disposed MED = 200 is , while R2 to 100.0.2.0 disposed MED = 100 , 1.0 arranged MED to 100 , respectively, to the respective property The EBGP neighbor takes effect, so the MED attribute will be passed along the route in AS345 and finally arrive at R4 . The router uses this information to construct a new Layer 2 header for the data frame and then forwards the message to the outbound interface pointing to the next hop. Switch(config-if)# switchport port-security aging type {absolute | inactivity} After deploying loopguard : 100 i O 200 i When the link between R1 and R3 fails, the same network will still have problems. Because R2 re-releases the locally configured static summary route into the This fulfills the demand. R1 announces 1.1.1.0 into BGP , and R2 learns these two routes from 10.1.12.1 and 10.2.12.1 respectively. FastEthernet1/0 Configure a static default route locally, such as ip route 0.0.0.0 0.0.0.0 null0 To control, the most simple and convenient. Neighbor xxxx soft-reconfiguration inbound Sw(config)#vlan 201 Timer bgp 0 0 neighbor never goes down VLSM support [Experiment 6 ] There are subnet routes, the subnet route prefix length is different (matching and mismatching), and the matching route is taken. Dynamic Host Configuration Protocol !! Two ACLs are created above to match the routes that need to be treated differently. Interface fast0/0 Obviously, R2 is preferred to 10.1.12.1 . This is because the first 12 rules cannot be decided. Therefore, the neighbor IP is compared . Therefore, 10.1.12.1 is preferred . Of course, if the 10.12.1 address of R1 is changed to 10.11.12.1 , And on the R2 to do the corresponding modification of the neighbor ip , then R2 to 1.1.1.0 will switch to 10.2.12.1 ,ccnp switch 300-115 answers, because this IP is small The DHCP server receives the DHCP message. If the server can identify option82 , it will assign an IP address to the client according to the information carried in option82 and select the corresponding policy. The server then responds with a DHCP packet, which also contains option82 information. _ As-path: all specific routes received as numbers are placed in {} , the calculation AS_Path the length of the AS is only counted as . 1 th AS Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale AS64512 private AS number is not allowed to declare to the Internet , if unchecked, R3 received R1 route, the AS_PATH certainly contains 64512 This private AS number, assuming that R3 as Internet routers, how R2 on the R3 delivery route When shielding private ASs ? Just a very simple command: neighbor 10.1.23.3 remove-private-as Next Hop Native Vlan Same speed and duplex ORIGINATOR_ID and CLUSTER_LIST 192.168.1.0 the OSPF routing but will be re-injected into the RIP (because we deploy a two-way re-release), this is the route Feedback , the route was filling back. In PVST+ , a VLAN has a spanning tree. On each switch, a unique identifier is required for each spanning tree, that is, the network. Notification message 4 Therefore, from here we can see that the route summary is a risk of looping. One way to solve the above problem is to add a static route on the Layer 3 switch: ip route 192.168.0.0 255.255.0.0 null 0 , this way, when it receives access Disable port Show run | in route The maximum survival period in the discard BPDU before the bridge used to store BPDU time default 20S . If consecutive receive 10 th bpdu S uppercase S , stale , indicating expired routes 192.168.1.0/24 SW2 and SW3 are similar situations; note that at this point we are not allowed to do any static configuration of the allowed vlan configuration on the trunk port. Adj-RIBs-Out of Note the access-list 1 method. The result of the experiment is that acl must match the IP and mask of the interface , for example, if written as permit 1.1.1.0 R4 can learn from R1 and R2 of the 100.0 network routing, and the previous experimental results, we know, without any deployment strategy, R4 preferably RouterID small R3 as destined 100.0 segment BGPpeer , then Can we influence the routing preferences by controlling AS_PATH ? Next, we use route-map to make a policy on R1 , which takes effect on R3 and modifies the AS_PATH path attribute of the 100.0.1.0 route . Eventually, R4 goes to the 1.0 network to go to R2 , and goes to the 2.0 network and still goes to R1 .