User guide

E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
9-9
T
RAFFIC
G
ROUPINGS AND
C
REATING A
Q
O
S P
OLICY
Traffic groupings are separated into the following categories for discussion:
• IP-based information, such as IP source/destination and TCP/UDP port information
• Destination MAC (MAC QoS groupings)
• Explicit packet class of service information, such as 802.1p or DiffServ (IP TOS)
• Physical/logical configuration (physical source port or VLAN association)
In the event that a given packet matches two or more grouping criteria, there is a
predetermined precedence for which traffic grouping will apply. In general, the more
specific traffic grouping takes precedence. By default, all traffic groupings are placed in
the QoS profile Qp1. The supported traffic groupings are listed in Tab le 9 -5. The
groupings are listed in order of precedence (highest to lowest). The four types of traffic
groupings are described in detail on the following pages.
Table 9- 5: Traffic Groupings by Precedence
IP Information (Access Lists) Groupings
■
Access list precedence determined by user
configuration
Destination Address MAC-based Groupings
■
Permanent
■
Dynamic
■
Blackhole
■
Broadcast/unknown rate limiting
Explicit Packet Class of Service Groupings
■
DiffServ (IP TOS)
■
802.1P
Physical/Logical Groupings
■
Source port
■
VLAN