Chapter 18
| Class of Service Commands
Priority Commands (Layer 3 and 4)
– 434 –
Priority Commands (Layer 3 and 4)
This section describes commands used to configure Layer 3 and 4 traffic priority
mapping on the switch.
qos map cos-dscp
This command maps CoS/CFI values in incoming packets to per-hop behavior and
drop precedence values for priority processing. Use the
no
form to restore the
default settings.
Syntax
qos map cos-dscp
phb
drop-precedence
from
cos0 cfi0
...
cos7 cfi7
no qos map cos-dscp
cos0 cfi0
...
cos7 cfi7
phb
- Per-hop behavior, or the priority used for this router hop. (Range: 0-7)
drop-precedence
- Drop precedence used for Random Early Detection in
controlling traffic congestion. (Range: 0 - Green, 3 - Yellow, 1 - Red)
cos
- CoS value in ingress packets. (Range: 0-7)
cfi
- Canonical Format Indicator. Set to this parameter to “0” to indicate that
the MAC address information carried in the frame is in canonical format.
(Range: 0-1)
Table 95: Priority Commands (Layer 3 and 4)
Command
Function
Mode
qos map cos-dscp
Maps CoS/CFI values in incoming packets to per-hop
behavior and drop precedence values for internal priority
processing
GC
qos map dscp-mutation
Maps DSCP values in incoming packets to per-hop
behavior and drop precedence values for internal priority
processing
GC
qos map phb-queue
Maps internal per-hop behavior values to hardware queues GC
qos map trust-mode
Sets QoS mapping to DSCP or CoS
IC
show qos map cos-dscp
Shows ingress CoS to internal DSCP map
PE
show qos map
dscp-mutation
Shows ingress DSCP to internal DSCP map
PE
show qos map phb-queue
Shows internal per-hop behavior to hardware queue map
PE
show qos map trust-mode
Shows the QoS mapping mode
PE
* The default settings used for mapping priority values to internal DSCP values and back to the
hardware queues are designed to optimize priority services for the majority of network
applications. It should not be necessary to modify any of the default settings unless a queuing
problem occurs with a particular application.
Содержание EX-3524
Страница 2: ......
Страница 28: ...Figures 28 ...
Страница 34: ...Section I Getting Started 34 ...
Страница 58: ...Chapter 1 Initial Switch Configuration Setting the System Clock 58 ...
Страница 72: ...Chapter 2 Using the Command Line Interface CLI Command Groups 72 ...
Страница 156: ...Chapter 5 SNMP Commands Notification Log Commands 156 ...
Страница 164: ...Chapter 6 Remote Monitoring Commands 164 ...
Страница 218: ...Chapter 7 Authentication Commands Management IP Filter 218 ...
Страница 268: ...Chapter 8 General Security Measures Port based Traffic Segmentation 268 ...
Страница 292: ...Chapter 9 Access Control Lists ACL Information 292 ...
Страница 312: ...Chapter 10 Interface Commands Power Savings 312 ...
Страница 324: ...Chapter 11 Link Aggregation Commands Trunk Status Display Commands 324 ...
Страница 366: ...Chapter 15 Address Table Commands 366 ...
Страница 428: ...Chapter 17 VLAN Commands Configuring Voice VLANs 428 ...
Страница 572: ...Chapter 25 IP Interface Commands IPv6 Interface 572 ...
Страница 578: ...Section I Appendices 578 ...
Страница 594: ...Appendix C Customer Support Manuals 594 ...