SIMULATION

Each of these vlans has one host each on its port
SVI on vlan 1 – ip 192.168.1.11 with snm
Switch B Ports 3, 4 connected to ports 3 and 4 on Switch A
Port 15 connected to Port on Router.
Tasks to do
1. Use non proprietary mode of aggregation with Switch B being the initiator
— Assumed use LACP with B being in Active mode
2. Use non proprietary trunking and no negotiation
— Assumed use switchport mode trunk and switchport trunk encapsulation dot1q
3. Restrict only to vlans needed
— Assumed either vtp pruning or allowed vlan list. vtp pruning command did not seem to
work on the simulator so landed using allowed vlan list
4. SVI on vlan 1 with some ip and subnet given
5. Configure switch A so that nodes other side of Router C are accessible
— Assumed this to mean that on switch A default gatway has to be configured.
6. Make switch B the root
— Could not get this to work. Exam hung when I tried the command
spanning-tree vlan 1, 21 -23 priority 4096

Answer: See the explanation.

Explanation:
on Switch A verify with show run if you need to create vlans 21 -23
int range fa0/9 – 10
switchport mode access
switchport access vlan 21
spanning-tree portfast
no shut
int range fa0/13 – 14
switchport mode access
switchport access vlan 22
spanning-tree portfast
no shut
int range fa0/16 – 16
switchport mode access
switchport access vlan 23
spanning-tree portfast
no shut
int range fa0/3 – 4
channel-protocol lacp
channel group 1 mode passive
no shut
int port-channel 1

switchport mode trunk
switchport trunk encapsulation dot1q
spanning-tree allowed vlans 1, 21 -23
no shut
int vlan 1
ip address x.y.z.11 255.a.b.c
no shut
SW B —> the one at the left (not connected to router)
conf t
interface rang fastethernet 0/9-10
switchport mode access
switchport accress vlan 21
spanning-tree portfast
no shut
interface rang fastethernet 0/13-14
switchport mode access
switchport accress vlan 22
spanning-tree portfast
no shut
interface rang fastethernet 0/15-16
switchport mode access
switchport accress vlan 23
spanning-tree portfast
no shut
interface range fastethernet 0/3-4
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 1, 21 -23, 99
switchport mode trunk
channel-protocol lacp
channel-group 1 mode passsive
no shut

// port-channel 1 automatically created and nothing needs to be
configured under it
ip default-gateway 10.10.10.1
// VLAN 1 already configured nothing more to be done on it
SWA —> the one connected to the router as in the exam
vlan 21
vlan 22
vlan 23
interface range fastethernet 0/3-4
switchport trunk native vlan 99
switchport trunk allowed vlan 1, 21 -23, 99
switchport mode trunk
channel-protocol lacp
channel-group 1 mode active
no shut
spanning-tree vlan 1, 21 -23, 99 root primary