Library items tagged:

Routers

Thursday, July 5, 2012 - 09:18

Routers are network devices that forward packets of data between different networks. A router between an organisation's LAN and JANET will not have a direct connection to every other router on the Internet. It is however possible to set up that router to forward packets to their destinations by the most efficient path. The router does this by referring to its routing tables, which list all the possible paths that data can take to get from source to destination IP address. Each router on the path repeats this process until the data reaches its final destination.

IP Addresses

Thursday, July 5, 2012 - 08:50

Every organisation that wishes to send and receive e-mail, or gain access to the Internet, needs a globally unique address, known as an IP address. These addresses are numeric and uniquely identify one network interface on a computer. Each address is written as four fields, separated by dots, and each field can be a number ranging from 0 to 255, e.g. 193.63.117.225.

Domain Name System (DNS)

Thursday, July 5, 2012 - 08:03

The Domain Name System (DNS) allows a computer presented with a textual name to convert or map it to the numeric IP address of another computer with which it needs to communicate, say to fetch a web page or deliver an e-mail. The process is called DNS resolution.

Connecting to Janet

Wednesday, July 4, 2012 - 17:53

Primary Connections

Fault Reporting

Wednesday, July 4, 2012 - 17:30

Janet operates a fault reporting process to deal with all problems at both a network and a site level, as quickly and efficiently as possible. However, this process can only work if all Janet-connected organisations are familiar with the correct reporting routes. Reporting Problems

Janet Support Manual

Wednesday, July 4, 2012 - 15:28

There are many sources of information about Janet, but it can take time to access specific details. This manual has been produced to place all essential material in one document. It is aimed at systems administrators and technical contacts at Janet sites. It is designed to work on a number of different levels and contains both non-technical and technical details.

DNS Portal Help Page

Wednesday, July 4, 2012 - 10:47

View Domains Filter Here you can narrow down the list of domains on show, by filtering by the status of the domain, or search for a specific domain. Request Domain ISP Organisation Choose which ISP organisation or account this domain will be maintained by. Domain Prefix The domain name without the suffix (eg .ac.uk, or .gov.uk)

Janet Network Charges

Saturday, June 30, 2012 - 21:27

A Network Charge is levied upon each higher education institution (HEI) which receives a connection to Janet funded by the JISC. The basis for this charge is a requirement from the Higher Education Funding Councils that a certain proportion of the overall budget for Janet is collected from HEI recipients of Janet connections.

Overview of IEEE 802.11u

Phyllis Callinan

Friday, June 29, 2012 - 14:37

Scott Armitage, Loughborough University March 2012 Introduction IEEE 802.11u is an amendment to the 802.11 family of protocols which enables the sending, and requesting, of information relating to a wireless network and its operator/owner. This allows users to be presented not just with the SSID of a wireless network but more detailed information, such as the services offered by the network.

Oxford University created a more resilient voice services network

Phyllis Callinan

Friday, June 29, 2012 - 13:46

University of Oxford creating a more resilient voice services network with InTechnology In undertaking a pilot project to create a more resilient voice servicesnetwork, it found InTechnology to be the only vendor that was Janet-connectedand which didn’t require an unnecessarily long lead time orextra-cost network circuits.

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