SMC Networks SMC6750L2 Manual De Usuario
C
OMMAND
L
INE
I
NTERFACE
3-120
Priority 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 four priority queues for each
port. Data packets in a port’s high-priority queue will be transmitted before
those in the lower-priority queues. You can set the default priority for each
interface, the relative weight of each queue, and the mapping of frame
priority tags to the switch’s priority queues.
packets have greater precedence when traffic is buffered in the switch due
to congestion. This switch supports CoS with four priority queues for each
port. Data packets in a port’s high-priority queue will be transmitted before
those in the lower-priority queues. You can set the default priority for each
interface, the relative weight of each queue, and the mapping of frame
priority tags to the switch’s priority queues.
Command
Function
Mode
Page
Layer 2 Priority Commands
switchport priority
default
switchport priority
default
Sets a port priority for incoming untagged
frames
frames
IC
queue bandwidth
Assigns round-robin weights to the priority
queues
queues
GC 3-122
queue cos map
Assigns class of service values to the
priority queues
priority queues
IC 3-123
show queue
bandwidth
bandwidth
Shows round-robin weights assigned to the
priority queues
priority queues
PE
show queue cos-map Shows the class of service map
PE
show interfaces
switchport
switchport
Displays the administrative and
operational status of an interface
operational status of an interface
PE
Layer 3 and 4 Priority Commands
map ip port
map ip port
Enables TCP/UDP class of service
mapping
mapping
GC
map ip port
Maps TCP/UDP socket to a class of
service
service
IC
map ip precedence
Enables IP precedence class of service
mapping
mapping
GC
map ip precedence
Maps IP precedence value to a class of
service
service
IC
map ip dscp
Enables IP DSCP class of service mapping GC
map ip dscp
Maps IP DSCP value to a class of service IC
show map ip port
Shows the IP port map
PE