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Information Solutions and Services, Projects, layer 3

A Layer 3 network configuration is being rolled out throughout the University on a location by location basis. A location may be an entire building or a building subset classified by communications room depending on the size of the building. A Layer 3 network configuration allows for:

• greater flexibility for users
• increased network stability
• isolation of certain locations

This means that if a fault occurs in a location or building, the problem can be located faster and should not have any impact on other areas on the network. 25 locations now have been upgraded to a Layer 3/Routed network configuration, with 25 locations some being quite small, in terms of end user connections remaining. A plan is in place to upgrade a number of locations during 2013.  These locations being

• The Archway (Quadrangle)
• Aras na Mac Leinn
• Women’s Studies
• English (Arts & Science)
• Sports Pavilion
• Aras na Gaeilge
• Block S
• Cimru

Existing Network Connections

A number of settings must be enabled on your desktop to ensure operation after the network update has been rolled out in your area. You ’must’ have these settings implemented on your desktop to ensure operation. The changes can be carried out prior to the implementation date. Please click on the links below for instruction on how to implement the changes needed on your machine   

• Automatic DHCP enabled
• Automatic DNS enabled
• Automatic Proxy enabled

New Network Connections

Currently all users are required to register their machine with ISS in order to obtain an IP Address. This will not change. However, instead of a fixed IP address being assigned to a desktop, an IP Addresses will be dynamically allocated to a device on connection to a wall box similar to the icon below

Wallbox

 

IP Addresses for Servers

Fixed IP Addresses will be assigned only to hosts on which a service is to be provided as well as to printers.  These will be assigned on request at registration of a desktop device

    

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