* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download End to end and up and down
Survey
Document related concepts
Network tap wikipedia , lookup
Policies promoting wireless broadband in the United States wikipedia , lookup
Computer network wikipedia , lookup
IEEE 802.1aq wikipedia , lookup
Zero-configuration networking wikipedia , lookup
Wireless USB wikipedia , lookup
List of wireless community networks by region wikipedia , lookup
Internet protocol suite wikipedia , lookup
Piggybacking (Internet access) wikipedia , lookup
Wireless security wikipedia , lookup
Wake-on-LAN wikipedia , lookup
Cracking of wireless networks wikipedia , lookup
IEEE 802.11 wikipedia , lookup
Recursive InterNetwork Architecture (RINA) wikipedia , lookup
Transcript
March, 2000 doc.: IEEE 802.11-00/036 Wireless LAN QoS Duncan Kitchin Intel Wireless LAN Operation Submission Slide 1 Duncan Kitchin, Intel WLO March, 2000 doc.: IEEE 802.11-00/036 Requirements • Must have end-to-end signalling – quality of service setup has to include whole network, not just the wireless LAN segment – must interoperate with all existing networks • Must have application support – has to work with existing protocol stack & applications – QoS features in wireless LAN must be transparent application should not know or care what the underlying transport is Submission Slide 2 Duncan Kitchin, Intel WLO March, 2000 doc.: IEEE 802.11-00/036 Proposed Solution • MAC provides statistical prioritization based on 802.1p tags • Real time connection setup handled at higher layers – RSVP in the network layer for end-to-end signalling – Subnet bandwidth management (SBM) uses RSVP state to attach 802.1p tags to packets Submission Slide 3 Duncan Kitchin, Intel WLO March, 2000 doc.: IEEE 802.11-00/036 End to end signalling • MAC layer doesn’t have the end to end picture • Lowest layer that can have end to end signalling is the network • Connections are established at network layer, with requirements pushed downwards into the MAC using SBM Connection Setup NWK Submission NWK NWK MAC MAC MAC MAC PHY PHY PHY PHY Slide 4 Duncan Kitchin, Intel WLO March, 2000 doc.: IEEE 802.11-00/036 Summary • Simple, incremental extension to 802.11 • Works with existing protocol stack (TCP/IP) • Well defined IETF protocol (RSVP) allows access to QoS services transparently, ensures application support Submission Slide 5 Duncan Kitchin, Intel WLO