Learning by Doing: CISCO Certified Network ... - SCN Research

Mixing it up: VLAN’s with STP
Objective:
To learn how to construct and a network using VLAN’s and STP for redundancy.
Tools and Materials:
(4) CISCO switch (1900 series)
(4) straight-through cables (st)
(4) Windows PC workstations with Hyperterminal and Ethereal installed
(1) console cable
(6) Crossover cables (xo)
Lab Diagram:
Teachers
Students
Master
Master
VLAN 2 VLAN 3
4 5 14 15
5 15 5 15
(VLAN 2) 4 14 (VLAN 3) (VLAN 2) 4 14 (VLAN 3)
NIC
st
st
NIC
workstation “A” workstation “B” workstation “a” workstation “b”
192.168.1.1/24 192.168.2.1/24 192.168.1.2/24 192.168.2.2/24
Step-By-Step Instructions:
1. Set up and cable the lab as shown. Do not forget to use crossover cables from switch
to switch. On the top redundant cable we will be connecting VLAN 2 with
redundancy. Plug it into port 7 on each lower switch. On the lower redundant cable
we will be connecting VLAN 3 with redundancy. Plug it into port 17 on each lower
switch.
2. A should only be able to ping to a.
3. B should only be able to ping to b.
4. Now lets test the backup for VLAN 2. Unplug the crossover cable in port 5 on the
lower left switch in our diagram. This will force the crossover cable between ports 7
to become active. Once STP has had a chance to activate that line then A should be
able to ping a once again. Go ahead and plug the crossover cable back into port 5.
5. Now lets test the backup for VLAN 3. Unplug the crossover cable in port 15 on the
lower left switch in our diagram. This will force the crossover cable between ports 17
to become active. Once STP has had a chance to activate that line then A should be
able to ping a once again. Go ahead and plug the crossover cable back into port 15.
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