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Chapter 8 Assignment 8.1 How many broadcast domains are in this picture? 3 Broadcast domains 8.2 Explain at least 4 features of VLAN’s? With VLAN’s a workstation can be used with full bandwidth at each port.  VLAN makes terminal relocations easy  On VLAN’s changing hosts/users is easy  It reduces the security risk as the number of hosts decreases. 8.3 Why VLan Trunking is a better approach when it comes to configuring VLANS’s? VLan Trunking is a better approach because it helps to extend a VLAN across the network. While implementing the multiple VLANs across the network, trunk links plays a very important role of making sure that the VLAN signals remain properly segregated for each to reach their intended destination. VLAN trunking is very efficient, as it can configure multiple VLANs on a single port. 8.4 Name two Vlan Trunking Protocols which Cisco IOS supports? 802.1Q and ISL.

8.5 Following the diagram write steps of code which Creates VLAN2 on Port fa0/13 and fa0/14 and Assign Access VLANs to those interface. As per example 8.2 in the book SW1# configure terminal Enter configuration commands, one per line. End with CNTL/Z. SW1(config)# vlan 2 SW1(config-vlan)# name Freds-vlan SW1(config-vlan)# exit SW1(config)# interface range fastethernet 0/13 - 14 SW1(config-if)# switchport access vlan 2

SW1(config-if)# switchport mode access SW1(config-if)# end SW1# show vlan brief VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4 Fa0/5, Fa0/6, Fa0/7, Fa0/8 Fa0/9, Fa0/10, Fa0/11, Fa0/12 Fa0/15, Fa0/16, Fa0/17, Fa0/18 Fa0/19, Fa0/20, Fa0/21, Fa0/22 Fa0/23, Fa0/24, Gi0/1, Gi0/2 2 Freds-vlan active Fa0/13, Fa0/14 1002 fddi-default act/unsup 1003 token-ring-default act/unsup 1004 fddinet-default act/unsup 1005 trnet-default act/unsup 8.6 Name different Trunking Administrative Mode Options and their functions? Modes Function Access Acts as an access port Trunk Puts interface in trunking Dynamic desirable Negotiate and chooses which type of trunking to be used. Dynamic auto Waits to receive a trunk negotiation

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message and then chooses which type of trunking to be used. Chapter 9 Assignment 9.1 What are three reasons Spanning tree protocol is used in LAN’s? The three reason why Spanning tree is used in Lan’s is to avoid the following issues: Broadcast Stroms MAC table instability Multiple frame transmission 9.2 Write five port states of STP and how they work? Five port states of STP are:  Blocking: Port in blocking stage will not participate or forward any frame.  Listening: Port directs BPDUs to the switch system module for processing  Learning: Port is listening and processing BPDUs  Forwarding: Port will process BPDUs and update its MAC address table with frames that it receives and forward user traffic through the port.  Disabled: Port will not participate in any frame forwarding and is considered non operational 9.3 From figure shown below which switch will win the root election process?

SW1 will win the root election process 9.4 Write the default port costs suggested by IEEE? Ethernet Speed IEEE Cost : 1998 (and before) IEEE Cost : 2004 (and after) 10 Mbps 100 2000000 100Mbps 19 200000 1 Gbps 4 20000 10 Gbps 2 2000 100 Gbps N/A 200 1Tbps N/A 20 9.5 What is the main difference in STP and RSTP? As per the book following are the points that shows the main difference between STP and RTP  RSTP and STP elect the root switch using the same rules and tiebreakers.  RSTP and STP switches select their root ports with the same rules.  RSTP and STP elect designated ports on each LAN segment with the same rules and tiebreakers.

 RSTP and STP place each port in either forwarding or blocking state, although RSTP calls the blocking state the discarding state. 9.6 Write Port roles of RSTP and their function? Function Port Role Port that begins a nonroot switch’s best path to the root Root port Port that replaces the root port when the root port fails alternative port Switch port designated to forward onto a collision domain Designated port Port that replaces a designated port when a designated port fails Backup port Port that is administratively disabled Disable port

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Chapter 10 Assignment 10.1 Write STP Modes and Standards? As Per the table 10-2 in the book 10.2 Define Etherchannel? When two neighboring switches can treat multiple parallel links between each other as a single logical link called an EtherChannel. 10.3 From figure shown below configure EtherChannel group 1 on port fa0/14 and fa0/15 ports of Switch SW1? 10.4 Before using a physical port in an EtherChannel, what configuration the switch compares between the new physical ports to the existing ports in the channel?

Chapter 11 Assignment 11.1 The configurations that the switch checks are as following:  Speed  Duplex  Operational Access  STP interface settings  The Access VLAN (If available)  The native VLAN Define the private IP network classes. Class of Network Private IP Networks Number of Networks A 10.0.0.0 1 B 172.16.0.0 through 172.31.0.0 16 C 192.168.0.0 through 192.168.255.0 256 11.2 Convert given class B IP address and default mask into binary? Address: 172.16.0.0 : 10101100.00010000.00000000.00000000 Netmask: 255.255.0.0 = 16 : 11111111. 11111111. 00000000 .00000000 11.3 Convert given class C IP address and default mask into binary? Address: 192.168.1.0 ; 11000000.10101000.00000001.00000000 Netmask: 255.255.255.0 = 24 : 11111111. 11111111. 11111111. 00000000

Chapter 12 Assignment 12.1 Define IPv4 classes based on First Octet Values? Class of Network First Octet values A 1-126 B 128-191 C 92-223 D 224-239 E 240-255 12.2 Show the format and sizes (in number of bits) of the network and host parts of IP addresses in Class A, B, and C networks. 12.3 Show the default masks for each network class, both in binary and dotteddecimal format? 12.4 Find the Network ID and Network Broadcast of the following addresses? (Assume mask is default) 1.1.1.1/8 Address: 1.1.1.1 00000001 .00000001. 00000001. 00000001 Netmask: Network: 1.0.0.0 Broadcast: 1.255.255.255 Convert all these decimal values to binary?

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Chapter 13 Assignment 13.1 Decim al Binary 0 000000 00 128 100000 00 192 110000 00 224 111000 00 240 111100 00 248 111110 00 252 111111 00 254 111111 0 255 111111 11 13.2 Convert all these Binary values to decimal? Binary Decimal

Chapter 14 Assignment 14.1 11111111.11111111.11000000.000 00000 255.255.192.0 11111111 11111111 11111111 11110000 255.255.255.2 40 11111111 11111000 00000000 00000000 255.248.0.0 13.3 Find the Mask Values in the Other Two Formats. Prefix Binary Mask Decimal 18 11111111.11111 111.11000000. 00000000 255.255.192.0 25 11111111.11111 111.11111111. 10000000 255.255.255.128 16 11111111.11111 111.00000000. 00000000 255.255.0.0 Find network ID and broadcast address of given IP address? 172.16.150.41 mask 255.255.192.0 Network Id: 172.0.0.0 / 8 Broadcast address: 172.16.191.255

Chapter 15 Assignment 15.1 14.2 Find both the subnet ID and subnet broadcast address. Of the given IP address 8.1.4.5/16 Subnet ID: 8.1.0.0 Broadcast Id: 8.1.255.255 14.3 Find Subnet ID and Broadcast Address? IP Address Binary Mask Subnet ID Broadcast Address 10.77.55.3 255.255.255. 0 10.77.55.0 10.77.55.255 172.30.99.4 255.255.255. 0 172.30.99.0 172.30.99.255 192.168.6.5 4 255.255.255. 0 192.168.6.0 192.168.6.255

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