Quality of Service 73
Table 17 ACI Precedence Groups
Precedence Group ACLs Packet Classifiers Precedence Level
Precedence Group 2 ACL 128 – ACL 254
Source MAC address
Destination MAC address
Ethernet type
VLAN ID
802.1p
Packet format
Precedence Group 3 ACL 255 – ACL 381
Source IP Address
Destination IP Address
IP protocol
TCP source port
TCP destination port
TCP flags
IP Type of Service
Egress port
Precedence Group 4
ACL 382 – ACL 508 Source MAC address
Source IP address
Ethernet type
VLAN ID
802.1p
Packet format
Precedence Group 5 ACL 509 – ACL 635
Destination MAC address
Destination IP address
Ethernet type
VLAN ID
802.1p
Packet format
Precedence Group 6 ACL 636 – ACL 762
Destination MAC address
Source IP address
TCP source port
TCP destination port
Packet format
High
NOTE: Precedence Groups are not related to ACL Groups.
Each Precedence Group has its own precedence level, such that Precedence Group 2 has a higher precedence level
than Precedence Group 1. Within each Precedence Group, higher-numbered ACLs receive higher precedence, so
that the lowest-numbered ACL has the lowest precedence level, and the highest-numbered ACL has the highest
precedence level.