Lldp-Med Inventory Management Tlv - Cisco 8851 Administration Manual

For the incoming LLDPDU, the TLV is ignored and not validated. Only one TLV is allowed in the outgoing
and incoming LLDPDUs. The phone will send out the TLV for the wired network only.
The LLDP-MED standard was originally drafted in the context of Ethernet. Discussion is ongoing for
LLDP-MED for Wireless Networks. Refer to ANSI-TIA 1057, Annex C, C.3 Applicable TLV for VoWLAN,
table 24. It is recommended that the TLV is not applicable in the context of the wireless network. This TLV
is targeted for use in the context of PoE and Ethernet. The TLV, if added, will not provide any value for
network management or power policy adjustment at the switch.

LLDP-MED Inventory Management TLV

This TLV is optional for Device Class III. For the outgoing LLDPDU, we support only Firmware Revision
TLV. The value for the Firmware Revision is the version of firmware on the phone. For the incoming LLDPDU,
the TLVs are ignored and not validated. Only one Firmware Revision TLV is allowed for the outgoing and
incoming LLDPDUs.
Final Network Policy Resolution and QoS
Special VLANs
VLAN=0, VLAN=1, and VLAN=4095 are treated the same way as an untagged VLAN. Because the VLAN
is untagged, Class of Service (CoS) is not applicable.
Default QoS for SIP Mode
If there is no network policy from CDP or LLDP-MED, the default network policy is used. CoS is based on
configuration for the specific extension. It is applicable only if the manual VLAN is enabled and manual
VLAN ID is not equal to 0, 1, or 4095. Type of Service (ToS) is based on configuration for the specific
extension.
QoS Resolution for CDP
If there is a valid network policy from CDP:
• If the VLAN=0, 1, or 4095, the VLAN will not be set, or the VLAN is untagged. CoS is not applicable,
but DSCP is applicable. ToS is based on the default as previously described.
• If the VLAN > 1 and VLAN < 4095, the VLAN is set accordingly. CoS and ToS are based on the default
as previously described. DSCP is applicable.
• The phone reboots and restarts the fast start sequence.
QoS Resolution for LLDP-MED
If CoS is applicable and if CoS = 0, the default is used for the specific extension as previously described. But
the value shown on L2 Priority for TLV for outgoing LLDPDU is based on the value used for extension 1. If
CoS is applicable and if CoS != 0, CoS is used for all extensions.
If DSCP (mapped to ToS) is applicable and if DSCP = 0, the default is used for the specific extension as
previously described. But the value show on DSCP for TLV for outgoing LLDPDU is based on value used
for the extension 1. If DSCP is applicable and if DSCP != 0, DSCP is used for all extensions.
Cisco IP Phone 8800 Series Multiplatform Phones Administration Guide
VLAN Settings
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