Abstract
Modern data center networks are usually constructed in multi-rooted tree topologies, which require the highly efficient multi-path load balancing to achieve high link utilization. Recent packet-level load balancer obtains high throughput by spraying packets to all paths, but it easily leads to the packet reordering under network asymmetry. The flow-level or flowlet-level load balancer avoids the packet reordering, while reducing the link utilization due to their inflexibility. To solve these problems, we design a Queueing Delay Aware Packet Spraying (QDAPS), that effectively mitigates the packet reordering for packet-level load balancer. QDAPS selects paths for packets according to the queueing delay of output buffer, and lets the packet arriving earlier be forwarded before the later packets to avoid packet reordering. We compare QDAPS with ECMP, LetFlow and RPS through NS2 simulation and Mininet implementation. The test results show that QDAPS reduces flow completion time (FCT) by ∼30%-50% over the state-of-the-art load balancing mechanism.
Original language | English (US) |
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Title of host publication | Proceedings - 26th IEEE International Conference on Network Protocols, ICNP 2018 |
Publisher | IEEE Computer Society |
Pages | 66-76 |
Number of pages | 11 |
ISBN (Electronic) | 9781538660430 |
DOIs | |
State | Published - Nov 7 2018 |
Event | 26th IEEE International Conference on Network Protocols, ICNP 2018 - Cambridge, United Kingdom Duration: Sep 24 2018 → Sep 27 2018 |
Publication series
Name | Proceedings - International Conference on Network Protocols, ICNP |
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Volume | 2018-September |
ISSN (Print) | 1092-1648 |
Other
Other | 26th IEEE International Conference on Network Protocols, ICNP 2018 |
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Country/Territory | United Kingdom |
City | Cambridge |
Period | 9/24/18 → 9/27/18 |
Bibliographical note
Publisher Copyright:© 2018 IEEE.
Keywords
- Data center
- Load balancing
- Multi-path