Title :
A RED variation for delay control
Author :
Pippas, John B. ; Venieris, Iakovos S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece
Abstract :
We evaluate a variation of random early detection (RED) for IP gateways (G/Ws), which drops/marks packets by controlling the average queue delay than the average queue size. The new algorithm is applied when the bandwidth of the outgoing connection varies over time and the service rate is explicitly advertised to the boundary G/W, such as in the available bit rate (ABR) transfer capability. The mechanism embodies the features of RED for congestion avoidance, and additionally guarantees the required queue delay commitments. The mechanism is proposed as complementary to RED, for delay sensitive traffic classes. Performance results using the OPNET simulation package proven that the mechanism is adaptive to changes in the backbone available bandwidth and offers the target QoS in terms of delay
Keywords :
Internet; delays; digital simulation; internetworking; performance evaluation; quality of service; queueing theory; random processes; telecommunication congestion control; telecommunication traffic; transport protocols; IP gateways; Internet; OPNET simulation package; QoS; RED variation; TCP/IP; algorithm; available bit rate; average queue delay control; backbone available bandwidth; bandwidth; cell/packet buffer queue; congestion avoidance; delay control; delay sensitive traffic classes; performance evaluation; performance results; queue delay; random early detection; resource allocation; service rate; Asynchronous transfer mode; Bandwidth; Delay; IP networks; Multiprotocol label switching; Protocols; Quality of service; Resource management; Spine; Web and internet services;
Conference_Titel :
Communications, 2000. ICC 2000. 2000 IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-6283-7
DOI :
10.1109/ICC.2000.853364
