HOMEWORK ASSIGNMENT

Week 2

30 Points Maximum

NAME

NETW204

Homework #2

Due Date: 1/17/16 

VLAN

1. A network engineer typed the following command on a switch hostname S1 and observed the output below. Explain each entry in the output and the possible source for each MAC address in the MAC Address Table. (10 points)

SW1#sh mac-address-table

Mac Address Table

-———————————————————————

Vlan Mac Address Type Ports

-———————————————————————

10 0001.c7ad.cd5a STATIC Fa0/2

1 00d0.5883.5001 DYNAMIC Fa0/1

1 00d0.5883.5002 DYNAMIC Fa0/4

45 00d0.d3aa.ec3a STATIC Fa0/15

Line 1- Is on VLAN10 the MAC is more than likely a server or router due to the static address type and is on port 2.

Line 2- Is on VLAN1 the MAC is on an end user device due the default VLAN1 setting and the dynamic address type, and is on port 1.

Line 3- Is on VLAN 1 the MAC is for an end user device due to the default VLAN1 and dynamic address and is on port 4.

Line 4- Is on VLAN45 the MAC appears to be a server or router due to the static address and is on port 15.

Explain the significance of each of the following types of VLAN: Data, Management, Native, and Blackhole. Explain where each type of VLAN fits into a LAN network. In addition, what is the default VLAN on a Cisco switch for Data, Management, and Native frames? Justify your answer (10 points)

A data VLAN also known as a user VLAN is configured to carry only user-generated traffic. The importance of separating user data from other type of VLAN is proper switch management and control.

A Management VLAN is any VLAN you configure to access the management capabilities of a switch.

A Native VLAN is assigned to an 802.1Q trunk port. An 802.1Q trunk port supports traffic coming from many VLANs as well as traffic that do not come from a VLAN. The 802.1Q trunk port places untagged traffic (traffic that does not come from a VLAN) on the native VLAN.

A Blackhole VLAN is a term used for a vlan configured for unused ports. It’s a security practice, whereby you create a vlan that has no route, or no default gateway to other networks within your organization, or to the internet.

1. List the range of Normal VLANs. What VLANs are reserved in that range? List the Extended VLAN range. What, if any, VLANs are reserved in that range? (10 points)

The range of Normal VLANs is 1-1005, 1002-1005 are reserved in that range. The Extended VLAN range is 1006-4094. VLANs 3968 to 4047 and 4094 are reserved for internal use.

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