Transcript Implications of MANs

Brian Gilmore
University of Edinburgh
A View from
the Campus
7/21/2015
Serenate
1
Context
• In UK terms, Edinburgh is a large
University with circa 20,000 students
• Edinburgh is a heavily research
active University
7/21/2015
Serenate
2
Current Position
• SuperJANET backbone is 2.5G and
10G
• Access speed from SuperJANET is
2x1G. (1 G for e-science – unusual!)
• Interior Campus links are mainly 1G
• System connections are 10/100 but
could be 1G
7/21/2015
Serenate
3
Current Service and Usage
• Current service is pure IP
• No QoS, no dedicated bandwidth
• Usage currently peaks at about
50meg
7/21/2015
Serenate
4
Financing
• University funds the capital for the
backbone
• Schools fund the capital for their
networks
• Thus upgrades to 1G would be paid
for by the School
• The recurrent funding for the network
is charged to Schools
7/21/2015
Serenate
5
MANs
• The SuperJANET (SJ) user base is
approx 750 institutions with about
5,000,000 users
• Most institutions are connected via
their local Metropolitan Area Network
(MAN) to SJ
• These MANs are a separate
management domain with policies
etc
7/21/2015
Serenate
6
Stakeholders for the Future
• If a new ‘service’ is to be introduced,
such as:
• QoS
• Bandwidth on Demand
• Large Bandwidth Demands
• Then the following need to be
consulted and to agree!
7/21/2015
Serenate
7
Management Domains
User
School (Dept)
University Network Provider (Computing Services)
MAN Provider
UKERNA
7/21/2015
Serenate
8
Obstacles
• The ‘easiest’ levels to address are
probably the UKERNA and
Computing Services levels
• Though the problems of small
institutions with limited resources
can not be overlooked
7/21/2015
Serenate
9
Obstacles - Continued
• The School and MAN levels can offer
significant financial and policy level
problems
• For example, the existence of
School level Firewalls is currently a
major obstacle to the working of
GRID Virtual Organisations and
even e-science working in a single
Institution!
7/21/2015
Serenate
10
Summary
• The ‘last mile’ is still a problem even
in campus based networking
• Investment at ‘the top’ needs to be
matched with investment ‘down
below’
7/21/2015
Serenate
11