B series equivalent of "configure lldp ports advertise vendor-specific dot3 power-via-mdi with-classification"

[James_A]

I have some new Aruba 515 APs that are connected to old B3 switches. I just got my new X440-G2s to replace them, but in the mean time it’d be nice to have them work in low power mode. However to do so requires LLDP power classification, which I can’t seem to get working on my B5s or B3s. On XOS the command is

configure lldp ports advertise vendor-specific dot3 power-via-mdi with-classification

and then the APs report successful LLDP power negotiation, but I can’t find the equivalent in EOS. Is it possible at all?

[James_A]

I tried with just

set lldp port tx-tlv mac-phy poe med-poe ge.6.42

but the AP still isn’t detecting the PoE power. It doesn’t matter really, just another reason to get my switch upgrades done.

[Holger_Gmerek]

Could you try reducing the TLVs on this port for testing

[James_A]

Sorry, I meant to say I already have both of those configured:

set lldp port tx-tlv port-desc sys-name sys-desc sys-cap mgmt-addr vlan-id mac-phy poe max-frame med-cap med-poe med-pol ge.6.42

lblock(su)->show lldp port tx-tlv ge.6.42

* Means TLV is supported and enabled on this port

o Means TLV is supported on this port

  Means TLV is not supported on this port

Column Pro Id uses letter notation for enable: s-stp, l-lacp, g-gvrp

Ports    Port Sys  Sys  Sys Mgmt Vlan Pro  MAC PoE Link Max   MED MED MED MED

         Desc Name Desc Cap Addr Id   Id   PHY     Aggr Frame Cap Pol Loc PoE

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

ge.6.42  *    *    *    *   *    *    o    *   *   o    *     *   *   o   *

but the AP shows this:

#show ap debug system-status ap-name L9 | begin "Power Status"

Power Status

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

Item                        Value

----                        -----

Power Supply                : POE-AT

LLDP Power                  : 0.0W

Current Operational State   : 2.4GHz radio: No restrictions, 5GHz radio: No restrictions

Eth0 HW POE status          : POE AT, LLDP power: 0.0W

compared to this on an AP connected to an XOS switch that has power-via-mdi with-classification set:

#show ap debug system-status ap-name M9 | begin "Power Status"

Power Status

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

Item                        Value

----                        -----

Power Supply                : POE-AT

LLDP Power                  : Successfully negotiated at 25.5W

Current Operational State   : 2.4GHz radio: No restrictions, 5GHz radio: No restrictions

Eth0 HW POE status          : POE AT, LLDP power: 25.5W

[Holger_Gmerek]

Hi,

according to the “Fixed Switch Configuration Guide” for FW 6.81 it goes like this:

Select the optional LLDP and LLDP-MED TLVs to be transmitted in LLDPDUs by the specified port or ports.

set lldp port tx-tlv {[all]

desc] [sys-name] [sys-desc] [mgmtaddr] [vlan-id] [stp] [lacp] [gvrp] [mac-phy] [poe] [link-aggr] [max-frame] [medcap] [med-pol] [med- loc] [med-poe]} port-string

poe

Power via MDI IEEE 802.3 Extensions TLV. Values sent include whether pair selection can be controlled on port, and the power class supplied by the port. Only valid for PoE-enabled ports. p.212 (13-8)

med-poe

LLDP-MED Extended Power via MDI TLV. Values sent include the Power Limit (total power the port is capable of sourcing over a maximum length cable) and the power priority configured on the port. Only valid for PoE-enabled ports.

Greetings Holger