Loading...
Please wait, while we are loading the content...
Similar Documents
Delay Jitter Bounds and Packet Scale Rate Guarantee for Expedited Forwarding (2001)
| Content Provider | CiteSeerX |
|---|---|
| Author | Boudec, Jean-Yves Le Benson, Kent Courtney, William F. Charny, Anna Bennett, Jon C. R. |
| Abstract | Abstract — We consider the definition of the Expedited Forwarding Per-Hop Behaviour (EF PHB) as given in RFC 2598 [1], and its impact on worst case end-to-end delay jitter. On one hand, the definition in RFC 2598 can be used to predict extremely low end-to-end delay jitter, independent of the network scale. On the other hand, we find that the worst case delay jitter can be made arbitrarily large, if we allow networks to become arbitrarily large; this is in contradiction with the previous statement. We analyze where the contradiction originates, and find the explanation. It resides in the fact that the definition in RFC 2598 is not easily implementable in schedulers we know of, mainly because it is not formal enough, and also because it does not contain an error term. We propose a new definition for the EF PHB, called “Packet Scale Rate Guarantee”, which preserves the spirit of RFC 2598, while allowing a number of reasonable implementations, and has very useful properties for per-node and end-to-end network engineering. We show that this definition is stronger than the rate-latency service curve guarantee. Then we propose some proven bounds on delay jitter for networks implementing this new definition, both in cases without loss and with loss. |
| File Format | |
| Publisher Date | 2001-01-01 |
| Access Restriction | Open |
| Subject Keyword | Ef Phb Delay Jitter Bound Case Delay Jitter Proven Bound End-to-end Network Engineering Delay Jitter Worst Case End-to-end Delay Jitter Packet Scale Rate Guarantee Reasonable Implementation Previous Statement Rate-latency Service Curve Guarantee Low End-to-end Delay Jitter Useful Property Error Term Network Scale Expedited Forwarding New Definition Expedited Forwarding Per-hop Behaviour |
| Content Type | Text |
