Enterasys 1G58x-09, Руководство по настройке

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Port Priority and Classification Configuration Summary
Port Classification
Matrix E1 Series (1G58x-09 and 1H582-xx) Configuration Guide 9-3
9.1.3 Port Classification
Port classification is another way to manage network traffic through the device. Port classification
allows you to configure one or more device ports to prioritize and forward untagged frames
according to a specific protocol type classification rule. By default, when a frame is received that
already contains an 802.1Q frame tag, frame classification is not implemented. Instead, the frame
is processed by the Matrix E1 device according to the information contained in the 802.1Q frame
tag.
When configuring the ports, you can
•
display the current classification, and entries of each classification rule,
•
assign priorities to classification rules,
•
assign an 8-bit Type of Service (ToS) value to incoming IP frames,
•
add/delete a priority and associated protocol entry,
•
overwrite default precedence levels assigned in an 802.1Q tagged frame, and
•
overwrite an existing ToS value.
NOTE: When the priority tag override feature is enabled on a port, 802.1Q frame tags
received on that port are assigned a lower precedence, allowing MAC address matching
and other types of priority classifications to receive higher precedence
.
For details on
enabling this feature, refer to Section 9.3.4.8 . For details on how this feature changes
default classification precedence rules, refer to Table 9-2 .