Alcatel-Lucent 7450 - Page 52

QoS Policies
52 Quality of Service Guide
• IEEE 802.2 LLC DSAP value/mask
• IEEE 802.3 LLC SNAP OUI zero or non-zero value
• IEEE 802.3 LLC SNAP PID value
• IEEE 802.1p value/mask
• Source MAC address/mask
• Destination MAC address/mask
• EtherType value
The MAC match criteria that can be used for an Ethernet frame depends on the frame’s
format. See Table 10.
The 802dot3 frame format matches across all Ethernet frame formats where only the source
MAC, destination MAC and IEEE 802.1p value are compared. The other Ethernet frame
types match those field values in addition to fields specific to the frame format. Table 11 lists
the criteria that can be matched for the various MAC frame types.
Table 10: MAC Match Ethernet Frame Types
Frame Format Description
802dot3 IEEE 802.3 Ethernet frame. Only the source MAC, destination MAC and
IEEE 802.1p value are compared for match criteria.
802dot2-llc IEEE 802.3 Ethernet frame with an 802.2 LLC header.
802dot2-snap IEEE 802.2 Ethernet frame with 802.2 SNAP header.
Ethernet-II Ethernet type II frame where the 802.3 length field is used as an Ethernet
type (Etype) value. Etype values are two byte values greater than 0x5FF
(1535 decimal).
Table 11: MAC Match Criteria Frame Type Dependencies
Frame Format Source
MAC
Dest
MAC
IEEE
802.1p
Value
Etype
Value
LLC Header
SSAP/DSAP
Value/Mask
SNAP-OUI
Zero/Non-zero
Value
SNAP-
PID Value
802dot3 Yes Yes Yes No No No No
802dot2-llc Yes Yes Yes No Yes No No
802dot2-snap Yes Yes Yes No
No
1
Yes Yes
ethernet-II Yes Yes Yes Yes No No No