M4100 - 26G - POE - lack of recurring overload on 17-24 ports

I have a M4100 - 26G - POE that I bought a few weeks ago and I see recurring defects of overload on 17-24 ports only. I used the exact same cables and devices on ports 1-16 and they all work fine, but if I move the cable to one of the top ports this will work for a few minutes then reset due to a defect of overload all few minutes or more. Everything goes well with the cables or connectors, and like I said it works fine on ports 1-16. Ports 1-16 are configured as ports 17-24 in the page web.

I want to know is if anyone else experienced a similar problem. Specifically, I want to know if it's a defective unit, a hardware design flaw, or a problem with the firmware (version for this model). I tend to think, it's probably a defective unit, but I would not be shocked if it is a firmware issue.

I want to know because I won't go well the expense by exchanging the unit to the store or swap try it on warranty and get a replacement that is a refurbished, model unless something is actually wrong with the hardware. I don't know that I see myself using more then 16-port POE in the foreseeable future.

Firmware 10.0.1.27 is now available, and a section in the release notes may relate to this problem:

    Someone who goes through this thread who saw this problem, tell us what you find!

    I sold my M4100 - 26G - POE because I needed a job switch.

Tags: Netgear

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    gi9 Auto search low class0

    GI10 Auto on low 2

    IG11 Auto search low class0

    gi12 Auto search low class0

    ig13 Auto search low class0

    IG 14 Auto article on low 2

    gi15 Auto search low class0

    gi16 research Auto low class0

    IG17 Auto search low class0

    gi18 Auto search low class0

    IG19 Auto search low class0

    IG20 Auto search low class0

    IG21 Auto search low class0

    gi22 Auto on low 2

    gi23 research Auto low class0

    gi24 - Auto on low class3

    -watchdog:

    SW06 #show power inline IG4

    Port power status device status priority class

    -------- -------------------- ---------------- ------------ -------- ---------

    IG4 Auto on low class0

    Limit of power (for the mode of power-limit of port): 15.400W

    State of the port: Port is on - valid resistance detected

    Overload counter: 0

    Brief of counter: 0

    Denied Counter: 0

    Absent of meter: 4

    Invalid Signature counter: 0

    SW06 #show interfaces announce IG4

    Port: IG4

    Type: 1 G-copper

    Link state:

    Autonegotiation: enabled

    1000F 1000 h 100f 100 h 10 h 10f

    -----  -----  ----  ----  ---  ---

    Link admin Local advertising Yes No Yes Yes Yes Yes

    Local liaison Oper announced Yes No Yes Yes Yes Yes

    Oper Remote link Announces no no Yes Yes Yes Yes

    Resolution of priority - Yes-

    -Phone:

    #show power inline gi10 SW06

    Port power status device status priority class

    -------- -------------------- ---------------- ------------ -------- ---------

    GI10 Auto on low 2

    Limit of power (for the mode of power-limit of port): 15.400W

    State of the port: Port is on - valid resistance detected

    Overload counter: 0

    Brief of counter: 0

    Denied Counter: 0

    Missing Counter: 465

    Invalid Signature counter: 0

    #show int adv gi10 SW06

    Port: gi10

    Type: 1 G-copper

    Link state:

    Autonegotiation: enabled

    1000F 1000 h 100f 100 h 10 h 10f

    -----  -----  ----  ----  ---  ---

    Link admin Local advertising Yes No Yes Yes Yes Yes

    Local liaison Oper announced Yes No Yes Yes Yes Yes

    Oper Remote link Announces no no Yes Yes Yes Yes

    Resolution of priority - Yes-

    -Phone:

    SW06 #show power inline article IG 14

    Port power status device status priority class

    -------- -------------------- ---------------- ------------ -------- ---------

    IG 14 Auto article on low 2

    Limit of power (for the mode of power-limit of port): 15.400W

    State of the port: Port is on - valid resistance detected

    Overload counter: 0

    Brief of counter: 0

    Denied Counter: 0

    Absent against: 0

    Invalid Signature counter: 0

    SW06 #show int adv article IG 14

    Port: article IG 14

    Type: 1 G-copper

    Link state:

    Autonegotiation: enabled

    1000F 1000 h 100f 100 h 10 h 10f

    -----  -----  ----  ----  ---  ---

    Link admin Local advertising Yes No Yes Yes Yes Yes

    Local liaison Oper announced Yes No Yes Yes Yes Yes

    Oper Remote link Announces no no Yes Yes Yes Yes

    Resolution of priority - Yes-

    SW06 #.

    -Phone:

    #show power inline gi22 SW06

    Port power status device status priority class

    -------- -------------------- ---------------- ------------ -------- ---------

    gi22 Auto on low 2

    Limit of power (for the mode of power-limit of port): 15.400W

    State of the port: Port is on - valid resistance detected

    Overload counter: 0

    Brief of counter: 0

    Denied Counter: 0

    Missing Counter: 591

    Invalid Signature counter: 166

    #show int adv gi22 SW06

    Port: gi22

    Type: 1 G-copper

    Link state:

    Autonegotiation: enabled

    1000F 1000 h 100f 100 h 10 h 10f

    -----  -----  ----  ----  ---  ---

    Link admin Local advertising Yes No Yes Yes Yes Yes

    Local liaison Oper announced Yes No Yes Yes Yes Yes

    Oper Remote link Announces no no Yes Yes Yes Yes

    Resolution of priority - Yes-

    --also was the watchdog, now empty:

    SW06 #show power inline gi23

    Port power status device status priority class

    -------- -------------------- ---------------- ------------ -------- ---------

    gi23 research Auto low class0

    Limit of power (for the mode of power-limit of port): 15.400W

    State of the port: Port is disabled - detection is in progress

    Overload counter: 0

    Brief of counter: 0

    Denied Counter: 0

    Missing Counter: 587

    Invalid Signature counter: 0

    -wap:

    SW06 #show power inline gi24

    Port power status device status priority class

    -------- -------------------- ---------------- ------------ -------- ---------

    gi24 - Auto on low class3

    Limit of power (for the mode of power-limit of port): 15.400W

    State of the port: Port is on - valid resistance detected

    Overload counter: 0

    Brief of counter: 0

    Denied Counter: 0

    Missing Counter: 607

    Invalid Signature counter: 3

    SW06 #show int adv gi24

    Port: gi24

    Type: 1 G-copper

    Link state:

    Autonegotiation: enabled

    1000F 1000 h 100f 100 h 10 h 10f

    -----  -----  ----  ----  ---  ---

    Link admin Local advertising Yes No Yes Yes Yes Yes

    Local liaison Oper announced Yes No Yes Yes Yes Yes

    Oper Remote link Announces no no yes no no no

    Resolution of priority - Yes-

    Other useful bits:

    SW06 active spanning tree #show

    Spanning tree disabled mode (floods BPDU) RSTP

    By default port cost method: long

    SW06 #sh worm

    SW version 1.1.2.0 (November 12, 2011 time 23:34:26)

    Start the 1.1.0.6 version (date may 11, 2011 time 18:31)

    HW version V02

    Hi Rich, reference this photo I just drew is a rough interpretation of how a switch 24 ports has guts. Each + block represents a processor. The numbers below represent the port Bank that corresponds to the transformer. Of course, MODULE POE is clearly identified. Each module 12 POE ports for services.

    I think you have a completely different question. If the POE works for 5 to 30 minutes, it can be a problem of layer 1 (bad son) or a different, perhaps material condition being disturbed. If the switch is at fault, it seems more likely to be defective to a unit of buggy.  I did a lot of research on the operation of the switch ASIC, transformer and modules of POE in the cohesion.

    Quite frankly, I think you should go to the 1.2.7.76 firmware, factory reset the device and test all the ports you want using the same equipment. If maintaining the POE fall every 5 to 30 minutes and you are absolutely positive, that it is not a question of layer 1 or a configuration problem on your products, can I just replace the switch.

    -Tom
    Please evaluate the useful messages

  • VLAN ACL M4100

    Dear Sir

    We want to create an access list to isolate our Wifi network invited all the other vlan.
    When I do, diseapper of the other SSID of our laptops.

    I applied to the access list to our direction to SVI comments in

    ! Description of the system "M4100 - 24 G - POE + ProSafe 24 port Gigabit L2 + Managed Switch w ith PoE +, 10.0.2.13, B1.0.1.1"
    ! Version of the software system "10.0.2.13".
    ! System Up Time "28 days 22 hours 39 minutes 58 seconds"
    ! Other packets QOS, IPv6, routing
    ! Current SNTP synchronized time: SNTP last attempt status is not successful
    !
    database of VLAN
    VLAN 99 200-208 455-456 999
    VLAN 99 name 'TEST '.
    name of VLAN 200 'Clients '.
    name of VLAN 201 "Telefonie.
    name of VLAN 202 "guest."
    name of VLAN 203 'fr '.
    the name of VLAN 204 "TD."
    VLAN name 205 "DMZ".
    VLAN name 206 'printers '.
    VLAN name 207 'media '.
    VLAN 208 name 'Wireless '.
    VLAN name 999 "3com".
    VLAN 1 1 routing
    -Other - or ITU (q)
    VLAN 200 2 routing
    VLAN 201 3 routing
    VLAN routing 202 4
    VLAN routing 5 203
    VLAN routing 204 6
    VLAN routing 205 7
    VLAN routing 206 8
    VLAN routing 9 207
    VLAN routing 10 208
    VLAN routing 11 455
    VLAN routing 12 456
    VLAN routing 99 13
    output

    network mgmt_vlan 203
    IP http secure server
    Configure
    time range
    default IP gateway - 10.253.255.1
    level of 483f42190380e8780a9d32a3c63d31b86d6ad49b870db8306af86a9ce3e06cd9a39f66e666e86f0aaab777b0ab9fe571908247c31d904463d1a0767400f8e763 user name 'admin' password encrypted 15
    level password user name "secit" encrypted 15 912ba98d721224814ea15db6dec1701819e75dfcafa635831e9eab148c105c20ba85dc61882dd47a65eb66dff6cf0005a1a2232b6957ec898cd6187c6bdbb510
    line console
    output
    -Other - or ITU (q)

    line telnet
    output

    ssh line
    output

    spanning tree bpduguard

    !

    IP access-list ACL_Wizard_IPv4_0
    output

    IP access-list Deny_Guest_Intervlan_Routing
    deny ip 10.253.2.0 0.0.0.255 10.253.0.0 0.0.0.255
    deny ip 10.253.2.0 0.0.0.255 10.253.1.0 0.0.0.255
    deny ip 10.253.2.0 0.0.0.255 10.253.3.0 0.0.0.255
    deny ip 10.253.2.0 0.0.0.255 10.253.4.0 0.0.0.255
    deny ip 10.253.2.0 0.0.0.255 10.253.5.0 0.0.0.255
    deny ip 10.253.2.0 0.0.0.255 10.253.6.0 0.0.0.255
    -Other - or ITU (q)
    deny ip 10.253.2.0 0.0.0.255 10.253.7.0 0.0.0.255
    deny ip 10.253.2.0 0.0.0.255 10.253.8.0 0.0.0.255
    deny ip 10.253.2.0 0.0.0.255 10.253.9.0 0.0.0.255
    deny ip 10.253.2.0 0.0.0.255 10.253.11.0 0.0.0.255
    IP 10.253.2.0 allow 0.0.0.255 0.0.0.0 0.0.0.0
    output

    class-map correspondence ClassVoiceVLAN ipv4
    game of vlan 201
    output

    Policy-map PolicyVoiceVLAN in
    class ClassVoiceVLAN
    Assign-queue 3
    output

    output

    interface 0/1
    Description "ACCESSPORTS.
    participation of VLAN include 200-201
    VLAN tagging 201
    -Other - or ITU (q)
    output

    interface 0/2
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 1000000
    pvid VLAN 200
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/3
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 200
    participation of VLAN include 200-201 204
    VLAN tagging 201
    -Other - or ITU (q)
    IP mtu 1500
    output

    interface 0/4
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 200
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/5
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 1000000
    pvid VLAN 99
    participation of VLAN include 99 200 - 201
    -Other - or ITU (q)
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/6
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 200
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/7
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    Description "ACCESSPORTS.
    pvid VLAN 203
    -Other - or ITU (q)
    participation of VLAN include 200-201
    VLAN tagging 201
    output

    0/8 interface
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 200
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/9
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 200
    -Other - or ITU (q)
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/10
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 200
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/11
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    -Other - or ITU (q)
    pvid VLAN 200
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/12
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 200
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/13
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    -Other - or ITU (q)
    bandwidth 100000
    pvid VLAN 200
    VLAN automatic participation 1
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/14
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 200
    VLAN automatic participation 1
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    -Other - or ITU (q)
    interface 0/15
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 200
    VLAN automatic participation 1
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/16
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 202
    VLAN automatic participation 1
    participation of VLAN include 201-202
    VLAN tagging 201
    IP mtu 1500
    output
    -Other - or ITU (q)

    interface 0/17
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 200
    participation of VLAN include 200-201
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/18
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 203
    participation of VLAN include 200-201 203
    VLAN tagging 201
    IP mtu 1500
    -Other - or ITU (q)
    output

    interface 0/19
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 206
    VLAN automatic participation 1
    participation of VLAN include 201 206
    VLAN tagging 201
    IP mtu 1500
    output

    interface 0/20
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 999
    participation of VLAN include 200-201 204-207 455-456 999
    -Other - or ITU (q)
    VLAN tagging 200-201 204-207 455-456
    IP mtu 1500
    output

    interface 0/21
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    pvid VLAN 455
    VLAN automatic participation 1
    participation of VLAN include 200-204 455-456
    VLAN tagging 200-204
    IP mtu 1500
    output

    interface 0/22
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    -Other - or ITU (q)
    switchport mode trunk
    switchport trunk vlan native 456
    pvid VLAN 456
    VLAN automatic participation 1
    participation of VLAN include 200-204 456
    VLAN tagging 200-204
    IP mtu 1500
    output

    interface 0/23
    VLAN 201 votes
    policy - PolicyVoiceVLAN
    bandwidth 100000
    switchport mode trunk
    switchport trunk vlan native 456
    pvid VLAN 456
    participation of VLAN include 200-204 456
    VLAN tagging 200-204
    IP mtu 1500
    output

    -Other - or ITU (q)

    interface 0/24
    bandwidth 100000
    switchport mode trunk
    switchport trunk vlan native 999
    pvid VLAN 999
    participation of VLAN include 200-208 455-456 999
    VLAN tagging 200-207 455-456
    IP mtu 1500
    output

    interface vlan 1
    Routing
    DHCP IP address
    output

    interface vlan 200
    Routing
    -Other - or ITU (q)
    IP 10.253.0.1 255.255.255.0
    output

    interface vlan 201
    Routing
    IP 10.253.1.1 255.255.255.0
    output

    interface vlan 202
    Routing
    IP 10.253.2.1 255.255.255.0
    IP access-group Deny_Guest_Intervlan_Routing vlan 202 in
    output

    interface vlan 203
    Routing
    IP 10.253.3.1 255.255.255.0
    output
    -Other - or ITU (q)

    interface vlan 204
    Routing
    IP 10.253.4.1 255.255.255.0
    output

    interface vlan 205
    Routing
    IP 10.253.5.1 255.255.255.0
    output

    interface vlan 206
    Routing
    IP 10.253.6.1 255.255.255.0
    output

    -Other - or ITU (q)

    interface vlan 207
    Routing
    IP 10.253.7.1 255.255.255.0
    output

    interface vlan 208
    Routing
    IP 10.253.8.1 255.255.255.0
    output

    interface vlan 455
    Routing
    IP 10.253.255.2 255.255.255.0
    output

    interface vlan 456
    -Other - or ITU (q)
    Routing
    IP 10.253.11.1 255.255.255.0
    output

    interface vlan 99
    Routing
    IP 10.253.9.1 255.255.255.0
    output

    IP management vlan 203
    dhcp service
    pool IP dhcp "Telefonie.
    Rental 7 0 0
    Server DNS 8.8.8.8 8.8.4.4
    router by default - 10.253.1.1
    Network 10.253.1.0 255.255.255.0
    domain secit.be
    b-node NetBIOS node type
    output

    -Other - or ITU (q)
    pool IP dhcp "guest."
    Rental 0 12 0
    Server DNS 8.8.8.8 8.8.4.4
    router by default - 10.253.2.1
    Network 10.253.2.0 255.255.255.0
    secit domain name - guest.be
    b-node NetBIOS node type
    output

    pool IP dhcp 'media '.
    Rental 0 12 0
    10.253.3.2 DNS Server 8.8.4.4
    router by default - 10.253.7.1
    Network 10.253.7.0 255.255.255.0
    secit domain name - media.be
    b-node NetBIOS node type
    output

    pool IP dhcp "TD."
    Rental 0 14 0
    10.253.3.2 DNS Server 8.8.4.4
    router by default - 10.253.4.1
    Network 10.253.4.0 255.255.255.0
    -Other - or ITU (q)
    secit domain name - td.be
    b-node NetBIOS node type
    output

    pool IP dhcp "internal."
    Rental 7 0 0
    10.253.3.2 DNS server
    router by default - 10.253.0.1
    Network 10.253.0.0 255.255.255.0
    domain fixitsolutions.local
    b-node NetBIOS node type
    output

    output

    Maybe it's the DHCP packet filtering.

    For help, try to add a rule to allow DHCP packets.

    Example: (this is obviously NOT the exact rule to filter only the DHCP packets, but just a simple rule for the test)

    IP access-list Deny_Guest_Intervlan_Routing
      permit udp 0.0.0.0 255.255.255.255 0.0.0.0 255.255.255.255 eq 67
      permit udp 0.0.0.0 255.255.255.255 0.0.0.0 255.255.255.255 eq 68
    
  deny ip 10.253.2.0 0.0.0.255 10.253.0.0 0.0.255.255
    
  IP 10.253.2.0 allow 0.0.0.255 0.0.0.0 0.0.0.0
    
output

    If this ACL works (you can get the DHCP address), then you will need to write the ACL right, something like (this is just an example):

    IP access-list Deny_Guest_Intervlan_Routing
      ! DHCPDISCOVER
      permit udp 0.0.0.0 0.0.0.0 eq 68 255.255.255.255 0.0.0.0 eq 67
      ! DHCPOFFER
      0.0.0.0 eq 67 255.255.255.255 0.0.0.0 eq 68
      ! DHCPINFORM
      permit udp 10.253.2.0 0.0.0.255 eq 68 255.255.255.255 0.0.0.0 eq 67
      ! DHCPACK
      0.0.0.0 eq 68
      permit udp 10.253.2.0 0.0.0.255 eq 67 255.255.255.255 0.0.0.0 eq 68
      ! Internal traffic
    
  deny ip 10.253.2.0 0.0.0.255 10.253.0.0 0.0.255.255
      ! Internet traffic
    
  IP 10.253.2.0 allow 0.0.0.255 0.0.0.0 0.0.0.0
    
output

  • message box from lack of virtual memory being received twice now; need explanation & advice on how to remedy

    Hello everyone,

    May 19 and still today, May 20, I saw an opportunity where a dialog box open above the taskbar, indicating that the virtual memory of my computer was too low and the system took some sort of action (I don't remember that well)... and some of my applications could be affected.

    May 19, low virtual memory warning appeared while I was trying to delete some 25 000 stored "potentially unwanted programs", quarantined by my software off that McAfee security, but was unable to do - my computer basically locked in place.  I managed to go Windows and remove all the .bup files in the McAfee VirusScan quarantine folder.

    Today, on May 20, I spent about an hour playing a game on my computer called, 'Ocean Beach 2. '  After finishing, my screen started to be slowly re-posted, and it was at this time that I noticed this insufficient virtual memory notification even appear just above the taskbar once more.   (The dialog box said also click tasks 'Help' for more information on the icon bar.  I have not done so... but there is no information here... only some documentation about a "language bar".

    I have a Dell Dimension 3000 Mid Tower computer model, WIN XP, SP3, Intel Pentium 4 (hyperthreading), 3.00 Ghz CPU, 512 MB RAM, 40 GB hard drive with a little more 27.0 GB of free space on it.  (McAfee security software is provided free by Cox Communications (my ISP).  I run a full scan of Malwarebytes FREE version just to make sure I didn't have some malware that is present; everything is okay there.

    I would appreciate if anyone can enlighten me as to why I got these notifications "low virtual memory"; does that mean I have a serious problem with the operating system. and I can do to solve this problem and prevent any recurring anthing?

    Thank you very much in advance for your time and any help!

    Pete C

    First, when a multiplicity of files and folders are created and deleted, it is always a good idea to optimize the system before and after that, in order to ensure that the file system is stable...

    also a melody is always a good idea to do at least once a month.

    Open Explorer > right click on the drive letter, select Properties, go to the Tools tab, run a disk check.

    then reboot and do a Defrag.

    either way, do a defrag can be problematic, given that you found problems of lack of virtual memory.

    Here is more information about the feature:

    Insufficient virtual memory blog

  • PoE for Cisco Catalyst 2960PD-8TT-L

    Hello

    Will deploy this device for a small office. Just a quick question, a Cisco Catalyst 2960PD-8TT-l switch provides PoE on all its 8 ports or simply powered through his PoE uplink port.

    Read the URL below, but did not have much info. TIA!

    http://www.Cisco.com/en/us/prod/collateral/switches/ps5718/ps6406/produc...

    Sent by Cisco Support technique iPhone App

    Sorry John, my comment is not directed at you.  The link you posted, the content is very, the lack of a better term, misleading.

    http://www.Cisco.com/en/us/products/ps12200/prod_models_comparison.html

    Go to this site instead.  It shows that the model you have chosen has NO PoE.  Instead, it uses the PoE of a switch upstream to turn.

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