Brocade FastIron Ethernet Switch Traffic Management Guide - Manual (Page 15)

NOTE
The Determining a packet trust level - FSX devices figure is not applicable to the third generation FSX
interface modules. To determine the trust level of a packet for the SX-FI48GPP, SX-FI-24GPP, SX-
FI-24HF, SX-FI-2XG, and SX-FI-8XG modules, refer to the Determining a packet trust level - SX-
FI48GPP, SX-FI-24GPP, SX-FI-24HF, SX-FI-2XG, and SX-FI-8XG modules figure.
As shown in the flowchart, the first criteria considered is whether the packet matches on an ACL that
defines a priority. Next, it checks if trust DSCP is enabled on the port. If this is not the case, the packet
is next classified based on the static MAC address. If this is not true and the packet is tagged, the
packet is classified with the 802.1p CoS value. If none of these is true, the packet is next classified
based on the ingress port default priority or the default priority of zero (0).
FIGURE 1 Determining a packet trust level - FSX devices
Quality of Service
FastIron Ethernet Switch Traffic Management Guide 13
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