iii
Tail drop ································································································································································· 52
RED and WRED ····················································································································································· 52
ECN ········································································································································································ 53
Configuring and applying a WRED table ··················································································································· 53
Displaying and maintaining WRED ····························································································································· 54
WRED configuration example ······································································································································ 55
Network requirements··········································································································································· 55
Configuration procedure ······································································································································ 55
Configuring traffic filtering ········································································································································ 57
Configuration procedure ··············································································································································· 57
Configuration example ·················································································································································· 58
Network requirements··········································································································································· 58
Configuration procedure ······································································································································ 58
Configuring priority marking
····································································································································· 59
Overview········································································································································································· 59
Color-based priority marking ········································································································································ 59
Packet coloring methods ······································································································································· 59
Configuring color-based priority marking ·········································································································· 60
Configuration procedure ··············································································································································· 60
Configuration examples ················································································································································ 62
Remarking local precedence configuration example ························································································ 62
Remarking local QoS ID configuration example ······························································································· 64
Configuring nesting···················································································································································· 67
Configuration procedure ··············································································································································· 67
Nesting configuration example ···································································································································· 68
Network requirements··········································································································································· 68
Configuration procedure ······································································································································ 68
Configuring traffic redirecting ··································································································································· 70
Configuration procedure ··············································································································································· 70
Configuration example ·················································································································································· 71
Network requirements··········································································································································· 71
Configuration procedure ······································································································································ 72
Configuring aggregate CAR ····································································································································· 74
Configuration procedure ··············································································································································· 74
Displaying and maintaining aggregate CAR·············································································································· 74
Configuration example ·················································································································································· 74
Network requirements··········································································································································· 74
Configuration procedure ······································································································································ 75
Configuring class-based accounting ························································································································· 77
Configuration procedure ··············································································································································· 77
Configuration example ·················································································································································· 78
Network requirements··········································································································································· 78
Configuration procedure ······································································································································ 78
Configuring data buffers ··········································································································································· 80
Configuration task list ···················································································································································· 81
Enabling the Burst function ············································································································································ 81
Configuring data buffers manually ······························································································································ 82
Configuring the total shared-area ratio··············································································································· 82
Setting the maximum shared-area ratio for a queue ························································································· 82
Setting the fixed-area ratio for a queue ·············································································································· 83