Brocade BigIron RX Series Configuration Guide - Manual (Page 578)

500 BigIron RX Series Configuration Guide
53-1002484-04
Scheduling traffic for forwarding
18
Displaying the WRED configuration
To view a WRED configuration, use the following command.
Syntax: show qos wred
Scheduling traffic for forwarding
If the traffic being processed by a device is within the capacity of the switch, all traffic is
forwarded as received. Once we reach the point where the switch is bandwidth constrained, it
becomes subject to drop priority if configured as described in
“Determining packet drop priority
using WRED” on page 494 or traffic scheduling as described in this section.
Traffic scheduling allows you to selectively forward traffic according to the forwarding queue that is
mapped to according to one of the following schemes:
1 304 1024 16384 4%
2 256 1024 16384 9%
3 204 1024 16384 10%
2 0 408 1024 16384 2% 1024 0.2%
1 356 1024 16384 4%
2 304 1024 16384 9%
3 256 1024 16384 9%
3 0 408 1024 16384 2% 1024 0.2%
1 356 1024 16384 4%
2 304 1024 16384 9%
3 256 1024 16384 9%
TABLE 104 WRED default settings (Continued)
Queue
type Drop
precedence Minimum
average
queue size
(KByte) Maximum
average
queue size
(KByte) Maximum
packet size
(Byte) Maximum
drop
probability Maximum
instantaneous
queue size Average
weight
BigIron RX#show qos wred
QType Enable AverWt MaxQSz DropPrec MinAvgQSz MaxAvgQSz MaxDropProb MaxPktSz
0 Yes 100% 32768 0 16000 32000 30% 512
1 32768 32768 0% 512
2 32768 32768 100% 512
3 32768 32768 0% 512
1 Yes 100% 32768 0 32768 32768 0% 512
1 32768 32768 0% 512
2 24000 24000 50% 512
3 32768 32768 0% 512
2 No
3 No