1 / 8

SERENATA D10: a brief critique

SERENATA D10: a brief critique. Saleem N. Bhatti Department of Computer Science http://www.cs.ucl.ac.uk/staff/S.Bhatti/ (With apologies from Tony Hey). NETSYS CoE - http://www.netsys.ucl.ac.uk/. Personal viewpoint (Nobody’s Fault But Mine). Critique of D10 from a Network Nerd:

jkraus
Download Presentation

SERENATA D10: a brief critique

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SERENATA D10: a brief critique Saleem N. Bhatti Department of Computer Science http://www.cs.ucl.ac.uk/staff/S.Bhatti/ (With apologies from Tony Hey) NETSYS CoE - http://www.netsys.ucl.ac.uk/

  2. Personal viewpoint(Nobody’s Fault But Mine) • Critique of D10 from a Network Nerd: • I like to break networks … and then rebuild them • Deliberately provocative • Changing network landscape: • Tension and turmoil • “Services” for users: • Manage network, middle-boxes, apps … and people! • Capacity and QoS: • Charging considered necessary • Security and AAA • Not just the NRENs’ problem

  3. Changing network landscape • Local vs. off-site/off-campus traffic: • Collaboration within Europe • Collaboration outside Europe • (Funding models and collaboration?) • Bottlenecks: • 100Mb/s + 1Gb/s on the desktop available now • Traffic distribution inversion • The NREN as the bottleneck … coming soon • Optical end-to-end timeframe not yet certain: • Hybrid/e-o-e paths will be around for a while • Optics folk and networking folk have to get together

  4. Services for users • Users normally want to see a “black box” … • … until something breaks! • Network monitoring and network weather reports: • General mechanisms • Dynamically, initiated by user • Hard to engineer, control and policeC • Careful placement and management of services • A vertical cut of the infrastructure: • Applications, middle-boxes and network components • Increase in heterogeneity and change

  5. Capacity and QoS • Not just a question of higher speeds: • Though more capacity will help • Need QoS control: • Traffic differentiation • Local policy and NREN policy control • “Hard-core” systems research required: • High-speed systems with QoS control • Network management and monitoring • Must have charging: • Tariffing must be considered carefully

  6. Security & AAA • Security services for applications and users: • End-to-end services - user-to-user, app-to-app • Education of users! • Integration with the applications: • Ease of use • Trust relationships to “echo” real-life interactions: • PKI is a long-time coming … • National/local policies and regulations: • Cryptographic algorithms • National security concerns • Long running debate …

  7. Comment: fundamental problem Networks and application services get more complex Users want to see increasingly easy use of the services and applications

  8. Some related work - networking • TEQUILA (now MESCAL) • AQUILA • EU-DataGrid WP7 • DataTAG • NetherLIGHT, STARLIGHT: • UKLIGHT coming soon • NorthernLIGHT coming soon • MB-NG (UK, SuperJANET)

More Related