First - make sure you have PoE+ PSU's in the 5406 either looking at them or running the 'show power' command. Main power should be 300W and it should also read 'PoE+ Connected' (don't ask how long that took me to realise several of our 5406's had PSU's were PoE not PoE+).
If that's okay - I found that even though they seem to have all the correct settings our older 2900 series switches and the 5406's did not negotiate lldp PoE correctly (something I need to talk to TAC/SE about eventually). I temporarily fixed it by running the following command.
This worked for our 300 and 200 series AP's.
no lldp config <port numbers> dot3TlvEnable poeplus_config
You have to disable/enable PoE to the ports you reconfigured before it will renegotiate - just restarting the AP does not work, you have to remove power to it (physically or the 'no power' command).
One of these days I'll get around to troubleshooting it more fully, hopefully when it calms down a little (not sure it will be oh well).
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Alan Wright
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Original Message:
Sent: Jan 07, 2022 06:55 AM
From: Leo Pickford
Subject: 5406zl compatibility AP-515 (PoE 802.3 at)
Yo Airheads,
I cannot get PoE to correctly power up the AP-515 to 'at' standard. If anyone has had the same issue and resolved I'd love to know how!
HP 5406zl (K.16.02.0033)
Module: J9307A Gig-T PoE+ zl Module
Tested using a modern switch (24 port CISCO) and the issue disappears, alas I don't have the budget to replace the 5406 core switch right now :(
Thank you in advance,
Leo.
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Leo Pickford
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