Assume that the switches have only the default VLAN. Explain how many collision and broadcast domains are seen in the network diagram below.
ROUTER----------SWITCH------------BRIDGE-----------SWITCH
| |
COMPUTER SWITCH-----------ROUTER
|
COMPUTER
VLANs (Virtual LANs) are logical grouping of devices in the same broadcast domain. VLANs are usually configured on switches by placing some interfaces into one broadcast domain and some interfaces into another. VLANs can be spread across multiple switches, with each VLAN being treated as its own subnet or broadcast domain. This means that frames broadcasted onto the network will be switched only between the ports within the same VLAN.
A VLAN acts like a physical LAN, but it allows hosts to be grouped together in the same broadcast domain even if they are not connected to the same switch. Here are the main reasons why you should use VLANs in your network:
The following topology shows a network with all hosts inside the same VLAN:
Without VLANs, a broadcast sent from host A would reach all devices on the network. By placing interfaces Fa0/0 and Fa0/1 on both switches into a separate VLAN, a broadcast from host A would reach only host B, since each VLAN is a separate broadcast domain and only host B is inside the same VLAN as host A. Hosts in VLAN 3 and VLAN 5 will not even be aware that the communication took place. This is shown in the picture below:
NOTE
To reach hosts in another VLAN, a router is needed.
Access & trunk ports
Each port on a switch can be configured as either an access or a trunk port. An access port is a port that can be assigned to a single VLAN. This type of interface is configured on switch ports that are connected to devices with a normal network card, for example a host on a network. A trunk interface is an interface that is connected to another switch. This type of interface can carry traffic of multiple VLANs.
In the example network pictured above, the link between SW1 and SW2 would be configured as a trunk interface. All other switch ports connect to end user devices, so they would need to be configured as access ports
Assume that the switches have only the default VLAN. Explain how many collision and broadcast domains...
1) How to Create VLAN on Cisco Catalyst Switch #show vlan а. VLAN Name Status Ports 1 default active Gil/0/1, Gil/0/2, Gil/0/3, Gil/0/4 Gil/0/5, Gil/0/6, Gil/0/7, Gil/0/8 config t Interface vlan 20 b. interface range gigabitEthernet 0/1 - 6 switchport access vlan 20 exit c. #show vlan VLAN Name Status Ports 1 default Gil/0/1, Gil/0/2, Gil/0/7, Gil/0/8 Gil/0/3, Gil/0/4, Gil/0/5, Gil/0/6 active active 20 VLAN020 2. How to Delete VLAN on Cisco Catalyst Switch no vlan 20 a. b. show...
(TCO 3, 4, and 5) Consider the network shown below: (Circles
represent end stations, rectangles represent network devices)
Answer the following questions with reference to this network
and explain your answers:
How many numbers of collision and broadcast domains does the
network have?
When station A sends a packet to station C, whose Ethernet
address does station A use for the destination address?
Suppose there is a two-way communication between stations A and
B. Does station C get to see...
(Networking)
How many collision domains are in Fig 1? Explain your
answer.
29501-24 Swit uterl OXM outero 2620XM Router2 2950T-24 Switch1 2950-24 Switch2 2950T-24 SwitchO Fig. 1
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200.1.1.2 /24 200.1.1.1/24 Subnet 4 1941 PC-PT PCO 1941 Router0 Router1 Network Address 192.168.21.0/24 5 subnets required Serial link 4 VLANS required VLAN 20 (Staf) (Subnet 0) VLAN 30 (Student) (Subnet 1) VLAN 40 (Server) (Subnet 2) VLAN 100 (Management)(Subnet 3)...
EXPLAIN in details why is it true or false. need to be 100%
POSTIVE OF ANSWER. SOLVE D E F G H I J
2) (10 points) IP and MAC addressing. True or False. Circle True or False. One point for each correct answer, zero points for each incorrect answer. Many of the questions refer the folowing network consisting of three 10Mbps Ethernet segments, one switch, and one router. Assume all ΛΕΡ tables are up-to-date unless otherwise stated Switch Ronter...
Addressing Table IPv4 Address Subnet Mask Device Interface Default Gateway IPv6 Address/Prefix IPv6 Link-local N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A G0/O 2001 DB8:ACAD:: 1/64 FE80::1 G0/1 2001:DB8:ACAD:1:1/64FE80::1 R1 G0/2 2001:DB8:ACAD:21/64FE80::1 172.16.1.2 2001:DB8:2::1/64 209.165.200.226 2001:DB8:1::1164 172.16.1.1 2001:DB8:2:2/64 255.255.255.252 FE80::1 255.255.255.252 FE80::2 255.255.255.252 FE80:2 S0/0/1 S0/0/0 Central S0/0/1 S1 S2 S3 VLAN 1 VLAN 1 VLAN 1 Staff NIC 2001:DB8:ACAD::2/64FE80::2 FE80::1 Sales 2001 DB8:ACAD:1:2/64FE80::2 FE80::1 IT 2001 DB8:ACAD:2: 2/64 FE80::2 64.100.0.3 2001 DB8 CAFE::3/64 192.168.0.196 2001:DB8...
For this assignment you will explore subnet addresses, host addresses and direct broadcast addresses. You will be provided an IP addresses and then asked to answer questions related to the IP. In this assignment, first we explain how to find the subnet address for each subnet, the range of host addresses, and the direct broadcast address. Then you will be asked to do a similar exercise by yourself. Assume that you have been assigned the 192.168.1.0/24 network. You need to...
Assist ne please
Question 3 NAME: The circuit shown below contains two switches which open and close perfectly out of phase with one another (only one is open at any given time, and once one closes the other immediately opens, and vice-versa). The switches alternate at a frequency of 10kHz, and each switch spends 50% of the time open and 50% of the time closed (ie, each switch is open for 100 microseconds and then closed for 100 microseconds). The...
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Network security
QUESTION 17 We assume that a LAN network includes 7 hosts (A, B, C, D, E. Fand G) which are connected by a switch. The contents of the switch's CAM table is as follows: (Port 1. Host A) - (Port 2. Host B) - (Port 3. Host - Port 4, Host D) - Port S. Hosta-Port 6, Host F) - (Port 7. HostG), Also, we assume that there is/are one or many host(s) that has/have sent fake...