EAPOL Protocol: Enable
[…]
802.3at LLDP based discovery
ERS 4000 Series PWR+ devices support the IEEE 802.3at-2009 standard for an Link Layer
Discovery Protocol (LLDP) configuration with a Powered Device (PD). The LLDP support for
PoE+ is added by extending the existing standard LLDP DOT3 Power via MDI TLV defined by
the IEEE 802.1ab with the new fields and values defined in the IEEE 802.3at-2009 standard.
Information for power negotiation between PD and Power Sourcing Equipment (PSE) is
described in Power via MDI, which is the optional TLV.
The PoE PD communicates through the Data Link Layer (DLL) classification instead of
Physical Layer (high power mode). Hence, the PoE+ capable devices can deliver power
greater than 15.4 watts for each port.
You can configure the PoE PD detection type (802.3at or 802.3at_and_legacy) to support a
DLL classification for communication. The Data Link Layer classification provides finer power
resolution and the ability for PSE and PD to participate in dynamic power allocation. The
allocated power to the PD can change one or more times during PD operation.
Before you begin
Follow the steps in Configuring Systems on Avaya Ethernet Routing Switch 4000 Series
NN47205-500.
Procedure
1. Check the LLDPDUs are enabled for transmission and reception on the PoE+
enabled port:
show lldp [port <portlist> | all][local-sys-data {dot1 | dot3 | detail |
med }]
2. Check the LLDP DOT3 Power-via-MDI TLV is enabled for transmission in LLDPDUs
on the PoE+ enabled port:
show lldp [port <portlist> | all][local-sys-data {dot1 | dot3 | detail |
med }][rx-stats] [tx-stats] [pdu-tlv-size] [tx-tlv {dot1 | dot3 | med |
vendor-specific}]
3. Display the LLDP DOT3 Power-via-MDI TLV local port data:
show lldp [port <portlist> | all][local-sys-data {dot1 | dot3 | detail |
med }]
4. Display the LLDP DOT3 Power-via-MDI TLV neighbor data (for example, a PoE+
endpoint device, like an Avaya IP Phone). If a neighbor does not support this
extended TLV, the supplementary information is not displayed.
show lldp [port <portlist> | all] [neighbor {dot1 | dot3 | detail | med }
802.3at LLDP based discovery
Troubleshooting Avaya ERS 4000 Series April 2014 161
To Next Page
Loading...
