Ericsson ECN330, Руководство пользователя

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Command Line Interface
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1553-KDU 137 365 Uen D 2006-06-16
7.19 Class of Service Commands
The commands described in this section enable those data packets to be
specified which have greater precedence when traffic is buffered in the ECN330-
switch due to congestion. The ECN330-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 ECN330-switch’s priority queues.
Table 99 Priority Commands
Priority Commands (Layer 2)
This section describes commands used to configure Layer 2 traffic priority on the
ECN330-switch.
Table 100 Priority Commands (Layer 2)
Command Groups Function Page
Priority (Layer 2) Configures default priority for untagged frames, sets
queue weights, and maps class of service tags to
hardware queues 897
Priority (Layer 3 and 4) Maps TCP ports, IP precedence tags, or IP DSCP tags to
class of service values 909
Command Function Mode Page
queue mode
Sets the queue mode to strict priority, Weighted
Fair Queueing (WFQ), or Weighted Round-Robin
(WRR) GC 898
switchport
priority default
Sets a port priority for incoming untagged frames IC 900
queue bandwidth
Assigns round-robin weights to the priority queues IC 902