Can a WS-C2960X-48LPS-L power 48 phones?
I am trying to get some clarification on the WS-C2960X-48LPS-L, is it able to supply power to 48 phones? If Cisco's IPM is required for this to work, can this be done using LLDP instead of CDP?
Look at table 6 Intelligent Power over Ethernet Plus at http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-2960-x-series-switches/data_sheet_c78-728232.html it lists max number of ports for 30W and 15.4W devices but not 7W.
I think i may have found the answer to my question at the document referenced below.
"The switch uses the IEEE classification to learn the maximum power consumption of a powered device before powering it. The switch grants power only when the maximum wattage configured on the port is less than or equal to the IEEE class maximum. This ensures that the switch power budget is not oversubscribed. There is no such mechanism in Cisco prestandard powered devices. "
Am i correct in reading this as the switch can autosense the phone is a Class 2 7W device even before powering up the phones (regardless of cdp/lldp) so a switch with a 370W power supply can cold boot and power up 48 7W phones?
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12-2_44_se/configuration/note/ol14988.html
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EtreCheck version: 1.9.15 (52)
Report generated August 30, 2014 at 6:56:41 PM EDT
Hardware Information: ?
iMac (21.5-inch, Mid 2011) (Verified)
iMac - model: iMac12,1
1 2.5 GHz Intel Core i5 CPU: 4 cores
4 GB RAM
Video Information: ?
AMD Radeon HD 6750M - VRAM: 512 MB
iMac 1920 x 1080
System Software: ?
OS X 10.9.4 (13E28) - Uptime: 0 days 0:16:53
Disk Information: ?
ST3120026AS disk0 : (120.03 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted>: 209.7 MB
Untitled (disk0s2) / [Startup]: 119.17 GB (87.12 GB free)
Recovery HD (disk0s3) <not mounted>: 650 MB
HL-DT-STDVDRW GA32N
USB Information: ?
Apple Inc. FaceTime HD Camera (Built-in)
CHICONY USB NetVista Full Width Keyboard
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Apple Internal Memory Card Reader
Thunderbolt Information: ?
Apple Inc. thunderbolt_bus
Gatekeeper: ?
Anywhere
Kernel Extensions: ?
[loaded] com.nvidia.CUDA (1.1.0) Support
[loaded] com.sophos.kext.sav (9.0.61 - SDK 10.7) Support
[loaded] com.sophos.nke.swi (9.0.53 - SDK 10.8) Support
Startup Items: ?
CUDA: Path: /System/Library/StartupItems/CUDA
FanControlDaemon: Path: /Library/StartupItems/FanControlDaemon
Launch Daemons: ?
[loaded] com.adobe.fpsaud.plist Support
[running] com.arcsoft.eservutil.plist Support
[running] com.bjango.istatmenusdaemon.plist Support
[loaded] com.oracle.java.Helper-Tool.plist Support
[running] com.sophos.autoupdate.plist Support
[running] com.sophos.configuration.plist Support
[running] com.sophos.intercheck.plist Support
[running] com.sophos.notification.plist Support
[running] com.sophos.scan.plist Support
[running] com.sophos.sxld.plist Support
[running] com.sophos.webd.plist Support
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[running] com.arcsoft.esinter.plist Support
[running] com.bjango.istatmenusagent.plist Support
[loaded] com.nvidia.CUDASoftwareUpdate.plist Support
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FlashPlayer-10.6: Version: 14.0.0.176 - SDK 10.6 Support
Flash Player: Version: 14.0.0.176 - SDK 10.6 Support
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JavaAppletPlugin: Version: Java 7 Update 67 Check version
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BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
AirPlay: Version: 2.0 - SDK 10.9
AppleAVBAudio: Version: 203.2 - SDK 10.9
iSightAudio: Version: 7.7.3 - SDK 10.9
iTunes Plug-ins: ?
Quartz Composer Visualizer: Version: 1.4 - SDK 10.9
3rd Party Preference Panes: ?
CUDA Preferences Support
Fan Control Support
Flash Player Support
Java Support
Time Machine: ?
Time Machine not configured!
Top Processes by CPU: ?
1% WindowServer
1% fontd
0% firefox
0% SystemUIServer
0% SophosWebIntelligence
Top Processes by Memory: ?
229 MB firefox
156 MB SophosScanD
152 MB InterCheck
131 MB com.apple.IconServicesAgent
115 MB SophosAntiVirus
Virtual Memory Information: ?
424 MB Free RAM
1.53 GB Active RAM
1.37 GB Inactive RAM
699 MB Wired RAM
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0 B Page-outsI'd start by getting rid of the following software responsible for these extensions.
Kernel Extensions: ?
[loaded] com.nvidia.CUDA (1.1.0) Support
[loaded] com.sophos.kext.sav (9.0.61 - SDK 10.7) Support
[loaded] com.sophos.nke.swi (9.0.53 - SDK 10.8) Support
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CUDA: Path: /System/Library/StartupItems/CUDA
FanControlDaemon: Path: /Library/StartupItems/FanControlDaemon
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