Trango Systems TrangoLINK GigaPlus User Manual page 179

DESCRIPTION
Trango Systems, Inc.
qos_info <1-4>
Default:
Priority 0
Priority 1
Priority 2
Priority 3
Priority 4
Priority 5
Priority 6
Priority 7
Configuration Storage: YES
qos is a system-level command.
.
qos <priority> <queue> is used to map the priority field in the VLAN COS
field of the incoming packet to one of the 8 queues based on the packet
priority per 802.1p. The traffic class of the incoming packet is mapped 1to1
to the 8 priorities as default.
qos dscp_weight <priority> <queue> is used to map weights to priority
levels for the Weighted Round Robin (WRR) qos mode used with 802.1p
Layer 2 AND Diffserv (Layer 3 DSCP) DSCP bits in the incoming IP packets.
For Diffserv, the DSCP bits are mapped to a priority, which is in turn
mapped to a queue. Individual DSCP field to priority mappings must be
done using the web interface.
qos mode <0|1> sets the qos mode to either strict o r WRR. (0=strict and
1=WRR).
For strict mode, the scheduling in strict priority as follows
COSQ7> COSQ6 > COSQ5 > COSQ4> COSQ3 > COSQ2 > COSQ1 > COSQ0
This means that all packets in COSQ7 will be forwarded (Queue must be
empty) before any packets in the lower priority queues are forwarded, and
so on down to COSQ0.
For WRR mode, weights are put on the priorities, which are mapped
GigaPlus User Manual Rev 3.1
COS Queue = 0
COS Queue = 1
COS Queue = 2
COS Queue = 3
COS Queue = 4
COS Queue = 5
COS Queue = 6
COS Queue = 7
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