Foundry Networks
Page 1 of 98
Configuring Hierarchical Quality of
Service (HQoS)
This chapter describes how the device can enable multi-level service level agreement (SLA)
assurance, based on
Hierarchical Quality of Service (HQoS) implementation. It provides
information necessary for system administrators to perform tasks and configure HQoS features and
configurations in provider networks environment. Included are all HQoS configuration commands
and relevant explanations. The chapter consists of the following sections:
TABLE OF FIGURES .................................................................................................................................... 2
CARRIER GRADE ETHERNET SERVICES AND HQOS....................................................................... 3
I
NTRODUCTION
.............................................................................................................................................. 3
C
ARRIER
G
RADE
E
THERNET
S
ERVICES AND
SLA
S
........................................................................................ 3
O
VERVIEW
.................................................................................................................................................... 6
HQ
O
S
S
PECIFICATIONS
................................................................................................................................. 7
HQ
O
S
M
ANAGEMENT
................................................................................................................................... 7
HQ
O
S
A
DVANTAGES
..................................................................................................................................... 8
H
IERARCHICAL
Q
O
S
U
SAGE
E
XAMPLES
........................................................................................................ 9
QOS/HQOS IMPLEMENTATION............................................................................................................. 11
O
VERVIEW
.................................................................................................................................................. 11
I
NTERNAL
A
RCHITECTURE
.......................................................................................................................... 12
T
RAFFIC
F
LOWS
.......................................................................................................................................... 16
HQ
O
S
M
ECHANISMS
................................................................................................................................... 25
P
OLICY
-
BASED
HQ
O
S
M
ANAGEMENT
......................................................................................................... 27
U
SING
HQ
O
S
FOR
SLA
V
ERIFICATION
........................................................................................................ 32
CONFIGURATION ...................................................................................................................................... 33
HQ
O
S
D
EFAULT
C
ONFIGURATION
.............................................................................................................. 33
HQ
O
S
G
RANULARITY
T
ABLE
...................................................................................................................... 34
CONFIGURATION ...................................................................................................................................... 36
HQ
O
S
D
EFAULT
C
ONFIGURATION
.............................................................................................................. 40
S
ERVICE
P
OLICY
C
OMMANDS
...................................................................................................................... 45
N
ETWORK
P
OLICY
C
OMMANDS
................................................................................................................... 53
N
ETWORK
Q
UEUE
P
OLICY
C
OMMANDS
....................................................................................................... 58
S
CHEDULER
P
OLICY
C
OMMANDS
................................................................................................................ 63
C
USTOMER
S
ITE
C
OMMAND
........................................................................................................................ 67
S
HAPING
P
ROFILE
,
WFQ
P
ROFILE AND
WRED
P
ROFILE
C
OMMANDS
......................................................... 68
HQ
O
S
D
ISPLAY
C
OMMANDS
....................................................................................................................... 76
S
TATISTICS
D
ISPLAY
C
OMMANDS
............................................................................................................... 84
C
ONFIGURATION
E
XAMPLE
......................................................................................................................... 86
ACRONYMS ................................................................................................................................................. 97
SUPPORTED PLATFORMS....................................................................................................................... 98
S
UPPORTED
S
TANDARDS
,
MIB
S AND
RFC
S
................................................................................................ 98