diffservの例文

• DiffServ simply provides a framework to allow classification and differentiated treatment.
• Each IP precedence value can be mapped into a DiffServ class.
• Network traffic entering a DiffServ domain is subjected to classification and conditioning.
• The IETF agreed to reuse the TOS octet as the DS field for DiffServ networks.
• Under DiffServ, all the policing and classifying is done at the boundaries between DiffServ domains.
• Under DiffServ, all the policing and classifying is done at the boundaries between DiffServ domains.
• This is complicated further if a packet crosses two or more DiffServ domains before reaching its destination.
• Latency can be minimized by marking voice packets as being delay-sensitive with QoS methods such as DiffServ.
• Traffic classifiers may honor any DiffServ markings in received packets or may elect to ignore or override those markings.
• DiffServ selects the WiMAX UGS, and uses the MIH Command Service to tell the mobile device to commit to handover.
• In order to maintain backward compatibility with network devices that still use the Precedence field, DiffServ defines the Class Selector PHB.
• DiffServ at the IP layer in the mobile device uses the Information Service to request performance information from the WiMAX access point.
• Previous proposals such as IntServ, DiffServ, and IP multicast have not seen wide acceptance largely because they require modification of all ISPs.
• DiffServ allows two carrier services apart from the default best effort service : Assured Forwarding ( AF ) and Expedited Forwarding ( EF ).
• DiffServ or any other IP based QoS marking does not ensure quality of the service or a specified service-level agreement ( SLA ).
• The IETF has also published as an informative or " best practices " document about the practical aspects of designing a QoS solution for a DiffServ network.
• Prior to DiffServ, IPv4 networks could use the " Precedence " field in the TOS byte of the IPv4 header to mark priority traffic.
• Previous proposals such as IntServ, DiffServ, and IP Multicast have not seen wide acceptance largely because they require modification of all routers in the network.
• Routers supporting DiffServ configure their network scheduler to use multiple queues for packets awaiting transmission from bandwidth constrained ( e . g ., wide area ) interfaces.
• While DiffServ does recommend a standardized set of traffic classes, the DiffServ architecture does not incorporate predetermined judgements of what types of traffic should be given priority treatment.