Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 737
Advertising the Extended Power through MDI, Advertising Extended Power Though dot3–TLVs
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The following example sets the global threshold limit for the PoE power budget to 99 percent on port extender 0 on stack unit 0. Dell(conf)#power budget global-threshold pe 0 stack-unit 0 99 Dell#show power detail pe 0 stack-unit 0 Unit Total System Redundancy Inline Inline Inline Inline Inline Power Power Power Power Power Power Power Power Available Consumed Consumed Threshold Available Allocated Consumed Remain (Watts) (Watts) (Watts) (%) (Watts) (Watts) (Watts) (Watts) 0/0 1000 150 0 99 841 0 0 841 Advertising the Extended Power through MDI The power device sends the following information in the LLDP-MED extended power-via-MDI TLV. 1. Power Requirement: Dell Networking OS uses it for power allocation 2. Power Priority - Critical, High, or Low: Dell Networking OS uses it for power priority calculation. 3. External Power Source: Dell Networking OS does not use this information. IEEE 802.3at power-via-mdi TLV To configure the system or an interface to advertise IEEE 802.1ab extended power-via-mdi TLV, use the advertise med power-via-mdi command. When you enable the advertise med power-via-mdi command in CONFIGURATION mode, advertisement is enabled for all the interfaces. To enable advertisement for a specific interface, use INTERFACE Configuration mode. NOTE: If you also configure LLDP to use the 802.3 TLV format, 802.3 overrides the advertise med power-via-mdi settings. For more information, see Advertising Extended Power Though dot3-TLVs. Parameters power-via-mdi - Enter the keyword power-via-mdi to advertise IEEE 802.1ab MED Extended power-via-mdi TLV. • Configure the system or an interface to advertise IEEE 802.1ab extended power-via-mdi TLV. LLDP CONFIGURATION or INTERFACE LLDP CONFIGURATION mode advertise med power-via-mdi Example of Advertising the Extender Power through MDI TLVs in LLDP Configuration Mode The following example configures all the interfaces to advertise IEEE 802.1ab power through MDI. Dell(conf-lldp)#advertise med power-via-mdi Example of Advertising the Extender Power through MDI TLVs in Interface LLDP Configuration Mode The following example configures interface peGigE 0/0/1 to advertise IEEE 802.1ab power through MDI. Dell(conf)#interface peGigE 0/0/1 Dell(conf-if-pegi-0/0/1)#protocol lldp Dell(conf-if-pegi-0/0/1-lldp)#advertise med power-via-mdi Advertising Extended Power Though dot3-TLVs The power device sends the following information in the IEEE 802.3 power-via-mdi TLV. 1. Power Class - Dell Networking OS honors and displays the power class in the show power inline command in EXEC mode (the PD-requested power value must be within the class max watts limit). 2. Type - Dell Networking OS uses type only when the type is Type1 or Type2 PD and displays the type in the show power inline command in EXEC mode. The Dell Networking OS does not use Type1 or Type2 PSE requests. 3. Priority - Dell Networking OS uses priority for priority calculation. Power over Ethernet (PoE) 737
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