=+= Jude 1:3 =+=

The sin and doom of Godless men

Dear friends, although I was very eager to write to you about the salvation we share, I felt I had to write and urge you to contend for the faith that was once for all entrusted to the saints.


Comment:

For me,St. Jude wants to share to us that Jesus died for our salvation but it is not enough. This doesn't mean that we are all saved and ready to receive the gift of God which is the eternal life. There is only one important thing for us to be saved and deserve the eternal life and that is "Our Faith in God". We are saved by our faith,not our good works.

=+= Classes of IP Address =+=

IP addresses are divided into five IP classes:
IP address class A
IP address class B
IP address class C
IP address class D
IP address class E

All IP addresses are placed in a particular class based on the decimal values of their first octets. In the first octet, an IP address can start with a decimal value between 1 and 255.

IP class A addresses have first octets with a decimal number from 1 to 127.
Example:
27.x.y.z
102.x.y.z

IP class B addresses have first octets with a decimal number from 128 to 191.
Example:
128.x.y.z
151.x.y.z

IP class C addresses have first octets with a decimal number from 192 to 223.
Example:
192.x.y.z
223.x.y.z

IP class D addresses have decimal values from 224 to 239 in the first octet, and the 4 leftmost bits are 1110.
Example:
224.x.y.z
239.x.y.z

The last IP address class of addresses is IP class E. IP class E addresses range from 240 to 255 in the first octet, and the 4 leftmost bits are 1111.
Example:
240.x.y.z
255.x.y.z

=+= Canopy Antenna =+=

Motorola Canopy Antenna

Motorola is one of the companies that uses canopy antenna. Motorola Canopy is a broadband wireless communication system that provides high-speed Internet access to residential and business customers.

=+= Modular Jack =+=

A device that conforms to the Code of Federal Regulations, Title 47, part 68, which defined the size and configuration of all units that are permitted for connection to the public exchange facilities.

Modular jack connectors, a cornerstone of communications technology, have been used in the telecommunications and ethernet industry for many years. The main reasons for this are the simplicity and reliability of these products. Increasing data rates and space-saving requirements are driving increasing requests for these connectors with integrated filter components.

Modular Jacks

=+= Juniper Routers =+=

Juniper is a leading provider of core routing, edge routing and network security solutions for IP-based enterprise and carrier-class networks. Network Hardware Resale was one of the first to offer pre-owned, refurbished and used Juniper equipment and maintains the capital and resources to carry the largest inventory of second-hand Juniper product available on the market. Popular items include the:

• Juniper M5 Series Routers
• Juniper M10 Series Routers
• Juniper M20 Series Routers
• Juniper M40 Series Routers
• Juniper M160 Series Routers
• Juniper T320 Series Routers

=+= Patch Panel =+=

Patch Panel

A panel of network ports contained together, usually within a telecommunications closet that connects incoming and outgoing lines of a LAN or other communication, electronic or electrical system. In a LAN, the patch panel connects the network's computer to each other and to the outside lines that enable the LAN to connect to the internet or another WAN. Connections are made with patch cords. The patch panel allows circuits to be arranged and rearranged plugging and unplugging the patch cords.

=+= Router vs Switch =+=

Switch

Router

Routers and switches are both computer networking devices. They allow one or more computers to be connected to other computers, networked devices, or to other networks.
But what is the difference between the two networking devices?

A router is a more sophisticated device than a switch. Traditional routers are designed to join multiple area networks (LANs and WANs). Routers serve as intermediate destinations for network traffic. They receive TCP/IP packets, look inside each packet to identify the source and target IP addresses, then forward these packets as needed to ensure the data reaches its final destination.

A network switch is a small hardware device that joins multiple computers together within one local area network (LAN). Switches are incapable of joining multiple networks or sharing an Internet connection. A home network with a switch must designate one computer as the gateway to the Internet, and that device must possess two network adapters for sharing, one for the home LAN and one for the Internet WAN. With a router, all home computers connect to the router equally, and it performs the equivalent gateway functions.

Router is more expensive than switch. Routers can connect wired or wireless (WiFi) networks while switch is used for wired networking connections only.

Conclusion:
Therefore, a switch sorts and distributes the network packets sent between the devices on a local area network (LAN), while a router is a gateway that connects two or more networks, which can be any combination of LANs, wide area networks (WAN), or the Internet. A router is a significantly more complicated device than a switch and more advanced models may use a reconfigurable operating system.