Specifications

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SW-B(config)# vlan 21
SW-B(config-vlan)# vlan 22
SW-B(config-vlan)# vlan 23
SW-B(config-vlan)# exit
SW-B(config)# spanning-tree vlan 1,21-23,99 root primary
SW-B(config)# int range fa 0/3 - 4
SW-B(config-if)# channel-protocol lacp
SW-B(config-if)# channel-group 1 mode active
SW-B(config-if)# no shut
SW-B(config-if)# exit
SW-B(config)# int port-channel 1
SW-B(config-if)# switchport trunk encapsulation dot1q
SW-B(config-if)# switchport mode trunk
SW-B(config-if)# switchport trunk native vlan 99
SW-B(config-if)# switchport trunk allowed vlan 1,21-23
SW-B(config-if)# no shut
SW-B(config-if)# end
SW-B# copy running-configuration startup-configuration
QUESTION 143
Scenario:
You work for SWITCH.com. They have just added a new switch (SwitchB) to the existing network as
shown in the topology diagram.
RouterA is currently configured correctly and is providing the routing function for devices on