Manualshelf

3Com Switch 4200G Configuration Guide

ManualsBrandsHP ManualsComputer AccessoriesHP ProCurve 8116fl Redundant Switch Fabric Module
231232233234235236237238239240
QoS Supported by Switch 4200G 223
Figure 73 The mapping process of trusting the DSCP precedence in the default mode and
automap mode
Figure 74 The mapping process of trusting the DSCP precedence in the remap mode
QoS Supported by
Switch 4200G
Packets
Packets
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
DSCP
－
>
other precedence mapping table
Search for the DSCP－
> other precedence mapping table
according to the DSCP precedence of the packet and
assign other precedence for the packet
Packets
Packets
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
DSCP
－
>
other precedence mapping table
－
> other precedence mapping table
Packets
Packets
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
DSCP
－
>
other precedence mapping table
Search for the DSCP－
> other precedence mapping table
according to the DSCP precedence of the packet and
assign other precedence for the packet
Packets
Packets
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
DSCP
－
>
other precedence mapping table
－
> other precedence mapping table
Packets Packets
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
DSCP
－
>
other precedence mapping table
The switch firstly gets new DSCP precedence by “DSCP—> DSCP” mapping,
then searches “DSCP—>other precedence” mapping table through the new
DSCP precedence, and replaces the precedence carried in the packet with
the mapped precedence
1863
1662
.
.
.
.
.
.
82
21
10
DSCPDSCP
1863
1662
.
.
.
.
.
.
82
21
10
DSCPDSCP
DSCP
－
>DSCP mapping table
Packets Packets
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
DSCP
－
>
other precedence mapping table
The switch firstly gets new DSCP precedence by “DSCP—> DSCP” mapping,
then searches “DSCP—>other precedence” mapping table through the new
DSCP precedence, and replaces the precedence carried in the packet with
the mapped precedence
1863
1662
.
.
.
.
.
.
82
21
10
DSCPDSCP
1863
1662
.
.
.
Packets Packets
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
70662
70763
.
.
.
.
.
.
.
.
.
.
.
.
1012
1001
1020
802.1pDropLocal-preDSCP
DSCP
－
>
other precedence mapping table
The switch firstly gets new DSCP precedence by “DSCP—> DSCP” mapping,
then searches “DSCP—>other precedence” mapping table through the new
DSCP precedence, and replaces the precedence carried in the packet with
the mapped precedence
1863
1662
.
.
.
.
.
.
82
21
10
DSCPDSCP
1863
1662
.
.
.
.
.
.
82
21
10
DSCPDSCP
DSCP
－
>DSCP mapping table
Table 188 The QoS functions supported by S4200G and related commands
QoS
Specificati
on
Related command Link
Priority
mapping
— priority priority-level
priority-trust
qos cos-drop-precedence-map
qos cos-dscp-map
qos cos-local-precedence-map
qos dscp-cos-map
qos dscp-drop-precedence-map
qos dscp-dscp-map
qos dscp-local-precedence-map
Configuring Priority
Mapping
TP — traffic-limit Configuring TP
TS — traffic-shape Configuring TS
Queue-sche
duling
SDWRR and
SP are
supported
queue-scheduler Configuring
Queue-scheduling