Protocol packet prioritization – Brocade Multi-Service IronWare QoS and Traffic Management Configuration Guide (Supporting R05.6.00) User Manual
Page 97
Multi-Service IronWare QoS and Traffic Management Configuration Guide
83
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Protocol Packet Prioritization
4
lists the default EXP Decode mappings
Protocol Packet Prioritization
Certain control packets are handled with certain priorities by default and hence those priorities
cannot be lowered with any of the QoS configuration commands or the priority force command. The
list of these control packets are listed below.
on page 84 lists the protocol packets that are internally and automatically prioritized for
IPv4, L2, and IPv6.
1 (001)
1 (01)
1
5 (101)
1 (01)
5
1 (001)
2 (10)
1
5 (101)
2 (10)
5
1 (001)
3 (11)
1
5 (101)
3 (11)
5
2 (010)
0 (00)
2
6 (110)
0 (00)
6
2 (010)
1 (01)
2
6 (110)
1 (01)
6
2 (010)
2 (10)
2
6 (110)
2 (10)
6
2 (010)
3 (11)
2
6 (110)
3 (11)
6
3 (011)
0 (00)
3
7 (111)
0 (00)
7
3 (011)
1 (01)
3
7 (111)
1 (01)
7
3 (011)
2 (10)
3
7 (111)
2 (10)
7
3 (011)
3 (11)
3
7 (111)
3 (11)
7
TABLE 24
Default EXP encode table
Priority
decimal (binary)
Drop-precedence
decimal (binary)
EXP value
Priority
decimal (binary)
Drop-precedence
decimal (binary)
EXP value
TABLE 25
Default EXP decode table
EXP value
Priority
decimal (binary)
Drop-precedence decimal
(binary)
7
7 (111)
0
6
6 (110)
0
5
5 (101)
0
4
4 (100)
0
3
3 (011)
0
2
2 (010)
0
1 2
(001)
0
0
0 (000)
0