Westermo RedFox Series - Manual (Page 258)

Westermo OS Management Guide
Version 4.17.0-0
Preference Port Configured Tie-break
Order Name Priority Priority
0 (lowest) X7 low 0
1 X9 low 2
2 X10 low 3
3 X5 high 6
4 X6 high 7
5 X3 critical 1
6 X2 critical 4
7 (highest) X1 critical 5
Table 12.2: Example of allocation preference order for a given PoE priority con-
figuration on a Viper-212-PoE unit.
12.1.2.2 PoE Port Priority
There are three levels of PoE priority (low, high, critical), which can be configured
per port. If there is not enough power to serve all attached PoE units, preference
will be given to ports with higher priority.
As situations can occur where the switch must chose between two ports of the
same level of configured priority, there is a need for a second level ”tie-break”
priority. For Viper-212-PoE[
52 ] the ”tie-break” priority is as follows (starting with
the lowest tie-break priority): X7(0), X3(1), X9(2), X10(3), X2(4), X1(5), X5(6),
X6(7). The tie-break priority order may become configurable in future WeOS
releases.
Table 12.2 illustrates the power allocation preference order in a specific configu-
ration example on a Viper-212-PoE, where ports X1-X3 have been configured with
priority critical, X5-X6 with priority high, and X7-X10 have priority low.
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