Cisco Ex SERIES User Manual download pdf (Page 6)

APPLICATION NOTE - Deploying IP Telephony with EX Series Ethernet Switches

On the other hand, LLDP-MED-capable VoIP phones will advertise their capabilities using LLDP-MED from the start.

Note that the fields within the section named TIA indicate LLDP-MED (Figure 4).

Figure 4: LLDP-MED-capable VoIP phone sending LLDP-MED data unit

Upon receiving the LLDP-MED data units from the neighboring end device (VoIP phone), the EX Series will start

advertising its capabilities using LLDP-MED (Figure 5).

Figure 5: EX Series Ethernet Switch sending LLDP-MED data unit upon receiving

LLDP-MED-Capable endpoint

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Cisco Ex SERIES User Manual Page 6