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Administration of the Avaya G350 Media Gateway - Avaya Support

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PoE overviewPlug and Play OperationYou can add and remove powered devices without manually reconfiguring <strong>the</strong> switch, since itperforms a periodic automatic load detection scan on non-powered ports.●●If a powered device that fits <strong>the</strong> above criteria is detected on a non-powered port, <strong>the</strong>npower is applied to <strong>the</strong> port.If a powered device is removed from a port, <strong>the</strong>n power is denied to that port. Thedisconnected port is <strong>the</strong>n scanned as well.In addition, if <strong>the</strong> PoE module is removed and replaced with module <strong>of</strong> <strong>the</strong> same type, <strong>the</strong> portpower configuration <strong>of</strong> <strong>the</strong> module is retained.Powering devicesThe <strong>Avaya</strong> <strong>G350</strong> MM314 PoE media module has its own power supply. Therefore, a full 210 W<strong>of</strong> power is available for PDs. Each port can supply up to 19.5 W by default. If a powered devicetries to draw more than <strong>the</strong> maximum allowed power per port, power is denied.Since 210 W may not be enough for driving powered devices on all <strong>the</strong> ports simultaneously, apriority mechanism exists.The priority mechanism determines <strong>the</strong> order in which ports are powered after <strong>the</strong> switch isbooted.There are three user-configurable PoE priority levels:●●●LowHighCriticalThe default value for all ports is Low.Power is automatically applied to PDs according to <strong>the</strong>ir priority when <strong>the</strong> power budgetincreases. If <strong>the</strong> power budget is exceeded, power is not provided to a new PD when you attachit, even if you define its priority as High or Critical.Note:Note:The order in which ports are powered within <strong>the</strong> same priority group is notsequential.Issue 3 January 2005 113

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