Link Layer Discovery Protocol (LLDP)
Table 11: Impact of TLVs Received by 1600 Series IP Telephones on System Parameter Values (continued)
System | TLV | Impact |
Parameter Name | Name | |
|
|
|
L2Q, L2QVLAN, | MED Network | L2Q - set to “2” (off) If T (the Tagged Flag) is set to |
L2QAUD, | Policy TLV | 0; set to “1” (on) if T is set to 1. |
L2QSIG, |
| L2QVLAN - set to the VLAN ID in the TLV. |
DSCPAUD, |
| L2QAUD and L2QSIG - set to the Layer 2 Priority |
DSCPSIG |
| value in the TLV. |
|
| DSCPAUD and DSCPSIG - set to the DSCP value |
|
| in the TLV. |
|
| A check is made as to whether a reset is necessary |
|
| to obtain a new IP address due to a change in the |
|
| values of the parameters L2Q or L2QVLAN. |
|
| This TLV is ignored if: |
|
| ● the value of USE_DHCP is “0” and the value |
|
| of IPADD is not “0.0.0.0”, or |
|
| ● the Application Type is not 1 (Voice) and is |
|
| not 2 (Voice Signaling), or |
|
| ● the Unknown Policy Flag (U) is set to 1. |
|
|
|
MCIPADD | Proprietary Call | MCIPADD will be set to this value if it has not |
| Server TLV | already been set. |
TLSSRVR and | Proprietary File | TLSSRVR and HTTPSRVR will be set to this value |
HTTPSRVR | Server TLV | if neither of them have already been set. |
|
|
|
L2Q | Proprietary 802.1 | The default L2Q is set to the value of this TLV. No |
| Q Framing | change is made to the current L2 tagging, but the |
|
| new default value is used on the next reboot. If TLV |
|
| = 1, L2Q set to "1" (On). If TLV = 2, L2Q set to "2" |
|
| (Off). If TLV = 3, L2Q set to "0" (Auto). |
| Proprietary - PoE | This proprietary TLV can initiate a power |
| Conservation TLV | conservation mode. The telephones that support |
|
| this will turn on/off the telephone backlight and the |
|
| backlight of an attached Button Module in response |
|
| to this TLV. |
| Extended | Power conservation mode will be enabled if the |
| received binary Power Source value is 10, and | |
|
| power conservation mode will be disabled if the |
|
| received binary Power Source value is not 10. |
|
| Power conservation mode is enabled even if the |
|
| telephone is not powered over Ethernet because |
|
| the telephone sends information about the power |
|
| source that it is using in a TIA LLDP MED Extended |
|
| |
|
| management system intends to conserve local |
|
| power as well. |
|
|
|
Issue 5 April 2010 83