SJ5: Now what

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SJ5 Now what?

• Dr John A. Linn
• University of Aberdeen
• 24th January 2007

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AbMAN/SJ4 Reminder
Gla
ED CPOP
622 Mbps
100LES
Aberdeen BAR
AbMAN EW
AbMAN-FH
RRI
AU-EW
AU-FH
MARLAB
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SJ4 Aberdeen BAR Cisco 12000
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SJ4 Geographic
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SJ5 Geographical
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SJ5 Verison Rack With CIENA 4200s
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AbMAN Rack Cisco 7605
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AbMAN/SJ5
Gla CPOP
Leeds CPOP
2.5Gbps POS
10G Eth
AbMAN EW
AbMAN-FH
RRI
AU-EW
AU-FH
MARLAB
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AbMAN Changes

• SJ4
• Primary 622Mbps
• Secondary 100Mbps
• Inter-core 1Gbps
• Resilient yes
• IPv4 unicast
• IPv4 multicast (but)
• IPv6 unicast devel.
• IPv6 multicast (no)

• SJ5
• Primary 2.5Gbps
• Secondary 2.5 Gbps
• Inter-core 10Gbps
• Resilient Yes
• IPv4 unicast
• IPv4 multicast
• IPv6 unicast
• IPv6 multicast (?)

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Functionality to think about

• unlimited bandwidth (2.5Gbps)
• Resilience
• Managed bandwidth (point to point)
• 10Gbps
• 8 - 1Gbps
• 2 for SSDN (schools)
• IPv4 Multicast and QoS service
• IPv6 service

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Unlimited Bandwidth

• AbMAN JANET usage is 100-150Mbps
• Now WAN speeds are LAN speeds
• Institutes connections 1Gbps
• Implications
• SJ5 auditor use it of lose it
• Collaboration
• E-science (GRID)
• Remote backup
• ????? (start thinking!)

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SJ5 Resilience implies Site Resilience

• Many AbMAN sites dual connected
• Aberdeen University (automatic)
• The Robert Gordon University
• Aberdeen College
• Marlab (automatic)
• RRI Rowett
• Two Models
• automatic (resilience)
• manual intervention (business continuity)

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Managed Bandwidth

• Known previously as UK-Light
• Point to point 10G or 1G
• not normal service traffic
• Special e-science projects
• Dangers-
• normal traffic leakage
• security hole

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IPv4 DevelopmentsMulticast

• Has been available on SJ4
• but AbMAN better with new Cisco cores.
• Why use it?
• Access Grid (VC)
• Real time streaming?
• Difference from unicast streaming
• unicast server to network nbandwidth
• multicast server to network 1 bandwidth
• Who BBC, Virgin radio, etc.
• Beacon as monitor of multicast connectivity

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IPv4 DevelopmentQoS

• Normal QoS categories
• BE best endeavours
• Premium
• LBE less than best efforts
• Premium is not Guaranteed Packet Delivery
• QoS does not solve congestion problems
• QoS has management issues
• LBE is very useful for large file transfers
• to/from fast computers

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IPv6 Development

• IPv6 has now been around for years
• so when will it take off?
• IPv4 Address exhaustion (even with NAT)
• 5 to 10 years
• IPv6 dual stack with IPv4 deployment
• 2 to 20 years
• Applications
• many compliant - see 6net as source

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Aberdeen University and SJ5

• Bandwidth
• usage is growing slowly
• home access VPNs (small)
• remote learning
• Managed Bandwidth
• department in Dundee ALMI
• medical at Raigmore - Inverness

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Aberdeen University and Multicast

• Have set up multicast Beacons
• Validates that multicast traffic is working
• Computing Science Access Grid VC
• Electronic Research Group
• Many applications and research
• Futures
• Real time streaming of graduation
• Student TV (as per US universities)

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Aberdeen University and QoS

• May start remarking ALL packets to BE
• It is the basis of mechanism CISCO uses to
  protect router from CPU overload.
• VoIP may require it.

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Aberdeen University and IPv6

• Research in Networking requires IPv6
• Electronic Research Group
• IPv6 unicast
• IPv6 multicast
• beacon on AbMAN
• problems with RPF checks
• Set up test network and services
• not much progress
• Business case?

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SJ5 and YOU

• SJ5 bandwidth
• SJ5 functionality
• Users demanded it
• SO
• Use it or Lose it!
• Or at least start planning to