Power over Ethernet

Exercise 4.1.2 The power requirements to send data is much lower than the requirements to transfer electricity. Exercise 4.1.3 Protection from power frequency, radio frequency interference, reducing errors generated. Exercise 4.1.4 Category Maximum Speed Application 1 1Mbps VOICE ONLY( TELEPHONE WIRES) 2 4Mbps LOCAL TALK & TELEPHONE 3 16Mbps 10 BASE T ETHERNET 4 20Mbps TOKEN RING 5 100/1000 100 BASE T ETHERNET/GIGABIT ETHERNET 5E 1Gbps/1000mbps GIGABIT ETHERNET 6 10Gbps GIGABIT

Ethernet Frames & VLAN tagging Inside of 802.1Q each VLAN frame is differently identified in comparison to common Ethernet frames with what is known as a 4-byte VLAN tag on the Ethernet header. An Ethernet Frame equates to being computer data packets that are broadcast as links then converts into a frame once shipped. Each Ethernet Frame consists of a destination or source MAC address then payload data relating to its type of Protocol e.g. Email Protocol, then lastly goes through a cyclic redundancy

data storage devices anywhere on the LAN. LANs are characterized by higher communication and data transfer rates and the lack of any need for leased communication lines. Most local area networks are built with relatively inexpensive hardware such as Ethernet cables, network adapters, and hubs. Wireless LAN and other more advanced LAN hardware options also exist. • Compare to Peer to Peer LANs and client/server LANs Peer to peer is an approach to computer networking where all computers share equivalent

for the recipient, after you click send the computer packages the email up, stamps on a IP destination and IP source on the packet, it is then sent to your router, which will forward it to the Worldwide web, - WAN (series of interconnected devices over a massive geographical location), it then goes to the first server where it is checked and sent to the next server, where it is forwarded to the router of the receiver, the router then checks the email packets for viruses and makes sure the firewall

The following is expected from a microwave radio link when it is deployed (7) in a 4G network:  Carry multiservice traffic over microwave links cost-effectively  Increase the transport bandwidth capacity for data services  Maximize the spectral efficiency  Provide carrier grade manageability and survivability of multi-service transport In order to meet afore mentioned expectations, with an eye on 3Cs, is the biggest hurdle. The migration to all IP network is going to be a tedious transition (8)

bandwidth to transfer data. So we can eliminate this problem by implementing VLANs here. By implementing VLANs, It creates collision domains in the network. Another thing about this switch is, it has 4 fiber optic ports rather than the 48 Gigabit Ethernet ports. By these 04 ports we can create hi speed uplinks. Also this has 48 ports. That means rack space also can save. References http://www.cisco.com/en/US/docs/solutions/Enterprise/Video/IPVS/IPVS_DG/IPVSchap4.html http://www.cisco.com/

Fiber Optic Cable, Transmitter and Receiver Characteristics Today many communications companies are replacing their copper carrier wires with fiber optic cables. A fiber optic cable is capable of transmitting laser light across thousands of miles and can carry many more messages at the same time than the copper wire of equivalent diameter. With the relentless pursuit of bandwidth, fiber optic cabling is being deployed at an ever increasing rate. This cable, which uses glass to carry light pulses

increase the productivity of the plants. The Albany site can change its structure to mirror the Headquarter with a 100 base T Ethernet with switches and reduce the amount of hardware and connections. The Pontiac site needs to upgrade to CAT 5 cabling to reduce data transmission degradation. Next, replace the hubs, patch panels with switches, and run a 100 base T Ethernet. Furthermore, both sites need to upgrade to a full T-1 connection to support the data transmission speed to headquarters. Software

The ports on a bridge are in and out, but they are smart ports with the ability to locate the address on the network. Switches are much like a bridge where they can connect networks that use the same protocols. They are used to direct traffic over multiple networks. Some switches will check

built on Ethernet, was used by users to access applications running on servers. And the second one often built on Fiber channel, which connects servers to the storage module where mountains of data are stored. Both networks require huge capital investment, each requiring specialized hardware. Both networks have vastly different management tools, which require staff with different skill sets to build, maintain and manage. With the proliferation of datacenter, equipment density and power consumption