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UIS Network Service Charges 2016-17

This page contains a summary of all UIS network service charges. For an explanation and detailed information on the individual services please refer to the specific pages.

CUDN Services

Installation of New Service

Recurrent Service Charge (p.a.)

2017 PoP Replacement Project - Upgrade from 1G

1G PoP switch £11,164 £2,688 -
10G PoP switch – Option 1: Combination of 2x 10G SFP+ and 48 x 1G copper uplinks £16,434 £5,737 £5,270
10G PoP switch – Option 2: 10x 10G SFP+ uplinks £14,660 £5,484 £3,495
1G BGP connection with 2x 1G uplinks (no PoP) £7,655 £2,198 £0
10G BGP connection with 2x 10G uplinks (no PoP) £7,655 £3,386 £0
Additional routed VLAN via PoP NA £74
MPLS VPN – per-site (VLAN or pair of eBGP peerings) NA £74
Inter-site VLAN NA £74
Managed VPN £0 £300


GBN Fibre Optic Network Services



Recurrent (per year)

Fibre optic rental – for every 100m (or part thereof) of fibre POA £13.22

Fibre optic rental to West Cambridge Data Centre (any distance)

£1,152 £1,598


Managed Network Services



Recurrent (per year)

UIS managed switch – 24 port £0* £450
UIS managed switch – 48 port £0* £550
Institution owned switch (up to 48 port) £0 £200

*Please note that large or new building projects have additional capital expenditure costs where significant network infrastucture is required. These are POA.


Consultancy Services

UIS labour rate per hour2 UIS consultancy charges apply
UIS labour rate per day2 UIS consultancy charges apply



1. Normal expected cost – may be less or more in exceptional circumstances.

2. Applicable for on-site work not covered by other standard charges.

In addition to the recurrent charges above, a volume-related charge is made to recover the HEFCE-imposed JANET network charge.

These prices apply to University institutions and Colleges, and to Research Council institutions that have an appropriate agreement with the University. VAT will be applied to the charges where applicable.


Notes on a CUDN Network Connection (PoP)

A CUDN network connection provides exclusive use of a point-of-presence (PoP) network switch, connected by dual 1 Gbps or 10Gbps uplinks to a CUDN router, and which provides a suitable connection for an institution's local network. The service includes the provision of IP subnets as required, dedicated to the institutional network. A CUDN network connection is required if the institution wishes to use other UIS services, such as University telephones or wireless services (eduroam, UniOfCam).

The PoP switch, and the CUDN router links to the institution's premises, remain the property of the UIS. They are managed and maintained by the UIS Network Team. The institution will be able to make use of multiple ports on the PoP switch. The standard 1 Gbps CUDN PoP configuration is detailed here.

CUDN network connections are available at locations directly connected by the Granta Backbone Network. The installation charge assumes the PoP switch is located at the site's GBN uplink location point. If additional trunking and fibre cabling is required, this will be included under a separate installation charge.


VLAN Supplement

Institutions with more than one CUDN Ethernet connection (eg department and annexe or college and hostel) are able to request a Virtual Local Area Network (VLAN) between them, though availability is presently subject to confirmation of technical feasibility in each case. The VLAN gives the effect of protocol-transparent bridging within the CUDN infrastructure, which will carry all traffic between the nodes of the VLAN. Note that this does not amount to support within the CUDN for non-IP traffic: it is equivalent to (and potentially cheaper than) private circuits, and connects only nodes belonging to the same institution. Node-to-node throughput will not necessarily reach the bandwidth of the physical connection.

Higher Education Institutions (HEIs) are charged for part of the cost of Janet by the Higher Education Funding Council for England and the other regional HE funding councils. Although, originally, the charge to HEIs was on the basis of their transatlantic traffic, the Joint Information Systems Committee (JISC) decided at its meeting on 28 March 2002 that a formula-based model reflecting institutional size, according to HESA annual statistics, should be used.

Network Traffic Charges

The University's Janet connection charge is recovered by quarterly charges based on all incoming traffic from and outgoing traffic to Janet for the previous quarter. The UIS invoices individual Colleges, Schools, and other institutions quarterly in arrears (usually early November, February, May, and August), except that any bill of less than £5 will be carried forward to the next quarter or the end of the financial year. The charge is based on the actual chargeable traffic attributed to the institution during that quarter, scaled so that the total across all institutions is the same as the amount invoiced by Janet(UK), allowing for VAT.

The traffic that is subject to charging is measured by the UIS at the router that connects to Janet.

  • Cambridge Janet traffic accounting data – recent is an index to web pages showing the breakdown of Janet traffic to/from the CUDN by institution, ordered by total traffic, on a daily, quarterly, and annual basis. The page also links to raw data files to enable institutions to perform their own data processing.
  • Individual web pages per institution giving traffic by individual local computer on a daily basis are available via Cambridge Janet traffic information by host to assist system administrators to manage their usage.


Enquiries and orders should be addressed to Network Support: telephone ext. 34691 or email to .

Network faults should be reported by phone only, to 0300 123 1164.

Scheduled interruptions will be announced on UIS's @UniCamITstatus Twitter feed and the UIS News Service.

Last updated: October 2016


If you have any enquiries regarding UIS network services, or other University network topics, please send an email to: