Enterasys 6E2 Series, Руководство пользователя

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Priority Classification Configuration Screen
9-26 802.1p Configuration Menu Screens
9.6.1 Classification Precedence Rules
When there are multiple classifications assigned to a switch, the switch must determine which
classification takes precedence according to the Classification Precedence Rules. The order of
precedence is predefined in the switch and cannot be changed.
Table 9-8 lists the ISO Layer, associated classification and precedence levels.
Bil TCP Port
New IP TOS:
- NO CHANGE
- TOS=PID
- CUSTOM>
Start:
00000
TOS: Value = 0x00
(Range: 0 - 255)
End:
00000
1. Bold type indicates a user entry.
2. Any fragmented IP frame received is Classified to the priority identification (PID) and
forwarded out the ports configured in the Protocol Port Configuration screen.
NOTE: It is important that you have a comprehensive understanding of the precedence
concept before configuring the switch, as these rules can have a significant impact on
the network operation.
NOTE: In Table 9-8 , the following applies:
– Highest precedence is 1a.
– Lowest precedence is 6.
– Exact Match indicates a match of an explicitly defined address.
– Best Match indicates a match of an entire subnet, or range of addresses within a
subnet.
Table 9-7 Classification List (Continued)
Classification
Subclassification and
Options
Custom or Mask Value