– 429 –
18
Class of Service Commands
The commands described in this section allow you to specify which data packets
have greater precedence when traffic is buffered in the switch due to congestion.
This switch supports CoS with eight priority queues for each port. Data packets in a
port’s high-priority queue will be transmitted before those in the lower-priority
queues. The default priority can be set for each interface, also the queue service
mode and the mapping of frame priority tags to the switch's priority queues can be
configured.
Priority Commands (Layer 2)
This section describes commands used to configure Layer 2 traffic priority on the
switch.
Table 93: Priority Commands
Command Group
Function
Priority Commands
(Layer 2)
Configures the queue mode, queue weights, and default priority for
untagged frames
Priority Commands
(Layer 3 and 4)
Sets the default priority processing method (CoS or DSCP), maps
priority tags for internal processing, maps values from internal priority
table to CoS values used in tagged egress packets for Layer 2 interfaces,
maps internal per hop behavior to hardware queues
Table 94: Priority Commands (Layer 2)
Command
Function
Mode
queue mode
Sets the queue mode to Weighted Round-Robin (WRR),
strict priority, or a combination of strict and weighted
queuing
GC
queue weight
Assigns round-robin weights to the priority queues
GC
switchport priority default
Sets a port priority for incoming untagged frames
IC
show interfaces switchport
Displays the administrative and operational status of an
interface
PE
show queue mode
Shows the current queue mode
PE
show queue weight
Shows weights assigned to the weighted queues
PE
Summary of Contents for EX-3524
Page 2: ......
Page 28: ...Figures 28 ...
Page 34: ...Section I Getting Started 34 ...
Page 58: ...Chapter 1 Initial Switch Configuration Setting the System Clock 58 ...
Page 72: ...Chapter 2 Using the Command Line Interface CLI Command Groups 72 ...
Page 156: ...Chapter 5 SNMP Commands Notification Log Commands 156 ...
Page 164: ...Chapter 6 Remote Monitoring Commands 164 ...
Page 218: ...Chapter 7 Authentication Commands Management IP Filter 218 ...
Page 268: ...Chapter 8 General Security Measures Port based Traffic Segmentation 268 ...
Page 292: ...Chapter 9 Access Control Lists ACL Information 292 ...
Page 312: ...Chapter 10 Interface Commands Power Savings 312 ...
Page 324: ...Chapter 11 Link Aggregation Commands Trunk Status Display Commands 324 ...
Page 366: ...Chapter 15 Address Table Commands 366 ...
Page 428: ...Chapter 17 VLAN Commands Configuring Voice VLANs 428 ...
Page 572: ...Chapter 25 IP Interface Commands IPv6 Interface 572 ...
Page 578: ...Section I Appendices 578 ...