Cabletron Systems Expansion module 9H532-17, Руководство пользователя

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Local Management: Overview, Setup, and Navigation
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The precedence concept is illustrated in the following example:
Example
A network administrator has defined the following two classifications involving
priorities:
• All frames with an IP TOS value of AA (Layer 3, precedence level 5a) are
assigned to priority 7.
• All frames with a TCP source port number of 80 (Layer 4, precedence level 4a)
are assigned to priority 3.
In this example, a frame that is received with a TOS value of AA, and a TCP port
number of 80, will be assigned to priority 3. This is because the TCP port number
classifications take precedence over IP TOS classifications.
The key thing to remember is that the SmartSwitch devices will classify frames
based on one of the classification options.
TCP Source Port 4a
TCP Destination Port 4b
IPX Socket Source 4a
IPX Socket Destination 4b
Table 10. Classification Precedence (Continued)
Classification Type Precedence Level