User's Manual

Technical Notes – QoS Features on BES50
Table of Contents
Revision History..........................................................................................................................................2
About this Document..................................................................................................................................3
Table of Contents........................................................................................................................................4
Table of Figures...........................................................................................................................................5
Overview.......................................................................................................................................................6
High-level Description of QoS Treatment in BES50 ................................................................................7
Configure BES50 Traffic Prioritization....................................................................................................14
1. Default Port Priority..............................................................................................................................14
2. 802.1p User Priority.............................................................................................................................14
3. Traffic prioritization based on IP DSCP...............................................................................................15
4. ACL Based Traffic prioritization..........................................................................................................17
BES50 Re-Marking Capability ..................................................................................................................29
IP DSCP Re-Marking on BES50FE.........................................................................................................29
IP DSCP Re-Marking on BES50GE ........................................................................................................29
Difference Between BES50FE and BES50GE.........................................................................................32
1. Number of traffic class....................................................................................................................32
2. Different ways to configure ACL Based traffic prioritization...........................................................32
3. Location of frame/packet re-marking..............................................................................................32
4. IP DSCP re-marking.......................................................................................................................32
Default QoS Behaviour of BES50FE and BES50GE ..............................................................................33
Default QoS Behaviour on BCM Traffic...................................................................................................33
Software Baseline .....................................................................................................................................35
NN70000-004 issue 1.00 Copyright © 2009 Nortel Networks - 4 -