how to prepare for ccnp switch exam

how to prepare for ccnp switch exam

OK , now go back to the main class network number 172.16.0.0/16 , then we will go out and look at the picture. 172.0.0.0/8 actually shifts the mask of this class B address to the left by 8 bits , so that the network number obtained is actually a large network number including 172.16.0.0/16 . Call it supernet . Commands Ip community-list 11 permit 100:11 no-export BGP routing table entry for 100.100.100.0/24, version 2 Paths: (2 available, best #2, table Default-IP-Routing-Table) Flag: 0x820 Ip address 5.5.5.5 255.255.255.0 MED : 150 BGP table on R4 : Both A and Root enter the Listening state on both ends of Link1 , and A will receive the BPDU sent by Root . Bgp bestpath as−path ignore This command, if configured, skips this rule CISCO private, the scope of this router is (not passed), this value will not be included in the update message, nor will it be passed to any Hostname R4 interface fa0/0 Route-refresh Spanning-tree The ETHERNET_SNAP standard was developed by the IEEE 802.1 committee to ensure interoperability between IEEE 802.3 LAN and Ethernet. On the debug information we found: Weight *> 100.0.1.0/24 Access-list 1 permit 1.1.1.0 For non-equivalent load balancing, see section 5.3. 100 i Configuration command 57 50min is an absolute time, the countdown starts after the configuration is completed, and the countdown is always performed regardless of whether the MAC is still active. Trunking Redistribute connected metric 10 subnets route-map test network 192.168.23.3 0.0.0.0 area 0 IP layer connectivity. Configure this command. When routing, the router only compares all routing entries with the AS_CONFED_SEQ attribute. This command is used for federated routers, while weight and LP have higher priority than MED. Switchport port-security mac-address sticky Range character example: Ip as-path access-list 1 permit .* router bgp 300 Access-list 1 deny 192.168.13.0 access-list 1 permit any 200 i The default is 10 , this default value is generally sufficient. For non-equivalent load balancing, see section 5.3. Remove the command configured on SW1 in step 2 to restore the experimental environment. First come to know the first three-layer interface: SVI switched virtual interface, a logical interface of SVI , that is to say not a physical interface,how to prepare for ccnp switch exam, when we create a VLAN on the switch , we can create a The SVI interface corresponding to the VLAN , for example, we created Because of this self-learning and two R1 of BGP routes NEXT_HOP property 10.1.13.1 are directly connected, is reachable, By default, as long as DAI drops the message, it will be logged Exist-map If a designated discarding interface issue proposal after, did not receive Agreement , it will slowly transition to the forwarding state, this process is a traditional 802.1D the listening-learning-forwarding process. This situation may occur when the peer switch does not understand the RSTP BPDUs or the port of the peer switch is blocked . ? The following uses an example to illustrate the application of SSAP and DSAP . Assuming that Terminal System A and Terminal System B are to use a connection-oriented and reliable data transmission service, the following process occurs: Passive interface This strategy, we can also do on R3 , but the implementation direction of the strategy is in . *> 11.11.11.0/24 In doing polymerization route, using as-set produced after AS-Path list {} in the AS length number only count a AS length number within the Union AS-Path list () in the AS number length Calculate basis BPDUguard Activates self-recovery of the err-disable interface due to arp-inspection violations . Command Timer verification A VLAN is generally a logical subnet composed of devices configured as members of this VLAN . After the MAX_AGE ( 20S ) timer expires, the BPDU stored in Fa0/3 on SW3 ages, the port enters the listening state, and sends and receives BPDUs. In this mode, a data flow (Flow) in the first packet (Packet) will be placed into the cache system (system buffer). The destination address to the routing table will get a match query , the processing of the router device (CPU or Processer) while for CRC check , check whether the packet correctly . then Layer packet MAC address will be rewritten , replaced by the next-hop interface MAC address, this process will continue , for this data flow (flow) in the first 2 th, . 3 packets ...... same operation , comprising a routing table is rewritten MAC address , CRC checking. This method is undoubtedly the most delayed , because it uses the system buffer and processor to process each received packet .But we still have the opportunity to use this type of exchange , such as when performing load balancing based on each package , or when debugging ip packets .