EXPERIMENT No-10
OBJECT: Simulation of Spanning Tree Protocol.
REQUIRED SOFTWARE: Cisco Packet Tracer 8.1.1
Network Diagram
Setup this network:
Switch>ena
Switch#config t
Switch(config)#hostname S1
S1(config)#interface range fa0/1-24
S1(config-if-range)#shutdown
S1(config-if-range)#interface fa0/3
S1(config-if)#switchport mode access
S1(config-if)#no shutdown
S1(config-if)#interface range fa0/1, fa0/2
S1(config-if-range)#switchport mode trunk
S1(config-if-range)#no shutdown
S1(config-if-range)#interface vlan 1
S1(config-if)#ip address 172.17.10.1 255.255.255.0
S1(config-if)#no shutdown
S1(config-if)#exit
S1#sh spanning-tree
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 0001.438D.229D
Cost 19
Port 2(FastEthernet0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 00D0.D3CA.B23C
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
—————- —- — ——— ——– ————————-
Fa0/1 Altn BLK 19 128.1 P2p
Fa0/2 Root FWD 19 128.2 P2p
Fa0/3 Desg FWD 19 128.3 P2p
Switch>ena
Switch#config t
Switch(config)#hostname S2
S2(config)#interface range fa0/1-24
S2(config-if-range)#shutdown
S2(config-if-range)#interface range fa0/6, fa0/11, fa0/18
S2(config-if-range)#switchport mode access
S2(config-if-range)#no shutdown
S2(config-if-range)#interface range fa0/1, fa0/2
S2(config-if-range)#switchport mode trunk
S2(config-if-range)#no shutdown
S2(config-if-range)#interface vlan 1
S2(config-if)#ip address 172.17.10.2 255.255.255.0
S2(config-if)#no shutdown
S2(config-if)#exit
S2#sh spanning-tree
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 0001.438D.229D
Cost 19
Port 2(FastEthernet0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 0090.217C.EB7C
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
—————- —- — ——— ——– ————————-
Fa0/1 Desg FWD 19 128.1 P2p
Fa0/2 Root FWD 19 128.2 P2p
Fa0/6 Desg FWD 19 128.6 P2p
Fa0/11 Desg FWD 19 128.11 P2p
Fa0/18 Desg FWD 19 128.18 P2p
Switch>ena
Switch#config t
Switch(config)#hostname S3
S3(config)#interface range fa0/1-24
S3(config-if-range)#shutdown
S3(config-if-range)#interface range fa0/1, fa0/2
S3(config-if-range)#switchport mode trunk
S3(config-if-range)#no shutdown
S3(config-if-range)#interface vlan 1
S3(config-if)#ip address 172.17.10.3 255.255.255.0
S3(config-if)#no shutdown
S3(config-if)#exit
S3#sh spanning-tree
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 0001.438D.229D
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 0001.438D.229D
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
—————- —- — ——— ——– ————————-
Fa0/1 Desg FWD 19 128.1 P2p
Fa0/2 Desg FWD 19 128.2 P2p
Download Cisco Packet Tracer 6.22
Download Cisco Packet Tracer 8.1.1
1. X.25 is an example of __________ network.
Answer is D)
packet switched
2. What is the maximum length of STP?
Answer is A)
200m
3. ISDN is an example of _______ network.
Answer is C)
circuit switched
4. What is the maximum data capacity of STP?
Answer is C)
100 mbps
5. In ______ topology if the computer cable is broken, networks get down
Answer is D)
bus
6. Terminators are used in ________ topology.
Answer is B)
bus
7. ________ layer decides which physical path the data should take.
Answer is B)
Physical
8. Print server uses spool which is a ______ that holds data before it is send to the printer.
Answer is C)
buffer
9. The ______ portion of LAN management software restricts access, records user activities and audit data etc.
Answer is B)
Performance management.
10. FDDI is a ____ network.
Answer is D)
ring
11. A distributed network configuration in which all data/information pass through a central computer is _____ network.
Answer is C)
star
12. The most flexibility in how devices are wired together is provided by ______
Answer is D)
ring
13. A central computer surrounded by one or more satellite computers is _______
Answer is C)
star
14. The internet is divided into over 200 top level __________
Answer is D)
domain
15. Every domain can have a set of ______ records associated with it.
Answer is B)
resource
16. GIF stands for _______
Answer is C)
Graphical Interchange Format
17. The error introduced by the finite number of bits per sample is called the _______ noise.
Answer is B)
quantization
18. ________ bursting allows a sender tot transmit a concatenated sequence of multiple frames in a single transmission.
Answer is D)
Frame
19. Protocols in which the sender sends one frame and then waits for an acknowledgement before proceeding are called __________
Answer is C)
stop and wait.
20. The data link layer takes the packet it gets from the network layer and encapsulates them into ___________
Answer is C)
frames
21. The data link layer takes the packets from _____ and encapsulates them into frames for transmission.
Answer is D)
network layer
22. Which one of the following task is not done by data link layer?
Answer is A)
channel coding
23. Protocols in which the sender waits for a positive acknowledgement before advancing to the next data item are often called ___________
Answer is D)
ARQ
24. The commonly used protocol for webpage transfer is ________
Answer is C)
HTTP
25. The frames which are intimated for receiving are called ________
Answer is C)
receiving window
26. The analysis which helps in checking whether the protocol is correct is _________
Answer is D)
reachability
27. The IP address of a system can be known using the DOS command _______
Answer is C)
ipconfig
28. Datagrams using header extension are called __________
Answer is A)
jumbograms
29. The application layer of a network ________
Answer is C)
consists of software being run on the computer connected to the network
30. Devices on one network can communicate with devices on another network via __________
Answer is A)
gateway.
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