Dell Force10 MXL Blade - Page 488

488 | Quality of Service (QoS)
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Usage
Information
When trust is configured, matched bytes/packets counters are not incremented in the show qos
statistics
command.
Dynamic mapping honors packets marked according to the standard definitions of DSCP. The default
mapping table is detailed in the following table.
Table 25-5. Standard Default DSCP Mapping Table
wred
Designate the WRED profile to yellow or green traffic.
Syntax
wred [[(yellow | green) profile-name] ecn]
To remove the WRED drop precedence, use the no wred {yellow | green} [profile-name] command.
Parameters
Defaults
none
Command Modes
CONFIGURATION (conf-qos-policy-out)
Command
History
DSCP/CP
hex range
(XXX)
DSCP Definition Traditional IP Precedence MXL Switch
Internal Queue ID
DSCP/CP
decimal
111XXX Network Control 3
48–63
110XXX Internetwork Control 3
101XXX EF (Expedited
Forwarding)
CRITIC/ECP 2
32–47
100XXX AF4 (Assured
Forwarding)
Flash Override 2
011XXX AF3 Flash 1
16–31
010XXX AF2 Immediate 1
001XXX AF1 Priority 0
0–15
000XXX BE (Best Effort) Best Effort 0
yellow | green
Enter the keyword yellow for yellow traffic. DSCP value of xxx110 and
xxx100 maps to yellow.
Enter the keyword green for green traffic. DSCP value of xxx010 maps to
green.
profile-name
Enter your WRED profile name in character format (16 character
maximum). Or use one of the 5 pre-defined WRED profile names.
Pre-defined Profiles:
wred_drop, wred_teng_y, wred_teng_
ecn
When wred ecn <cr> command is configured, instead of droppping the
packets exponentially, Explicit Congestion Notification (ECN) marking is
made on the packets.
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module