ccna exam update 2019

ccna exam update 2019.This experiment enables you to master: MSTP role and working principle. MSTP configuration and debugging methods. 2. experimental topologyThe experimental topology diagram for configuring MSTP is shown in Figure 14-12.Instancel root bridge: priority 4096 Instancel secondary root bridge: priority 8192 3. Experimental Steps Instance?secondary root bridge: priority 8192 Instance2 root bridge, priority 4096The VLAN list of MSTP instance 1 is VLAN1 and VLAN2, and the VLAN list of instance 2 is VLAN3 and VLAN4 o By configuring MSTP to achieve MSTP with different root bridges for instance 1 and instance 2, load sharing and fast convergence are achieved. Switch S1 is the root bridge of instance 1 (priority 4096) and the secondary root bridge of instance 2 (priority 8192); Switch S2 is the secondary root bridge of instance 1 (priority 8192) and the root bridge of instance 2 (priority 4096).Create VLAN2-VLAN4 on the switch, and configure the link between SI, S2 and S3 as Trunk mode. The configuration commands in this part are the same as those in Experiment 1, so they are not given here.(2) Configure MSTPConfigure switch S1..246.Cisco Networking Lab CCNA Lab Guide (Release 2)S1 (config)#spanning-tree mode mst Configure the mode of spanning tree as MSTP, which is PVST+ by default S1 (config)#spanning-tree mst configuration Enter the configuration mode of MSTP S1 (config-mst)#nanie cisconame the domain name of MSTP S1 (config-mst)#revision 1configure the revision number of MSTS1(config-mst)#instance1vlan1-2Mapping VLAN1 and VLAN2 to instance 1 S1 (config-mst)#instance 2 vlan 3-4Mapping VLAN3 and VLAN4 to instance 2, there are 3 MSTP instances here, instance 0 is the default instance,