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86 4600 Series IP Telephone LAN Administrator Guide
To support IEEE 802.1D/Q, the 4600 Series IP Telephones can be administered either of
two ways:
● from the network by appropriate administration of the DHCP or TFTP/HTTP servers, as
covered in 4600 Series IP Telephone Scripts and Application Files
on page 77, or
● at the telephone itself using dialpad input, as covered under local administrative
procedures in the 4600 Series IP Telephone Installation Guide.
Eight IEEE 802.1D/Q QoS parameters in the telephones can be administered, as follows. The
first five parameters are for standard 802.1Q tagging and apply to any 4600 Series IP
Telephone. The last three parameters apply to all 4600 Series IP Telephones with a secondary
Ethernet interface.
● L2Q: 802.1Q framing parameter (1=On, 2=Off, or 0=AUTO). The default is 0, but the
preferred setting is 1 (ON). You can manually set the L2Q value of a specific 4600 IP
Telephone to any value, for example, AUTO, ON, or OFF. However, any subsequent value
administered via DHCP or TFTP/HTTP settings file will override the manual value. To use
the QoS Local Administrative Option to set L2Q manually see the 4600 Series IP
Telephone Installation Guide.
● L2QVLAN: the VLAN ID on which the telephone should operate. For example, what VLAN
ID to use for DHCP Discovery, etc. (up to 4 digits, from 0 to 4094, default is 0).
● VLANTEST: the number of seconds to wait for a DHCPOFFER when using a non--zero
VLAN ID (up to 3 digits, from 0 to 999, default is 60).
● L2QAUD: 802.1Q VoIP (voice) user RTP traffic priority value (between 0 and 7, default
is 6).
● L2QSIG: 802.1Q VoIP (voice) user Call Control Signaling traffic priority value (between 0
and 7, default is 6).
● VLANSEP: enables VLAN separation when set to 1 (the default); disables VLAN
separation when set to 0. If the value is zero, broadcasts are transmitted. Can only be
administered using DHCP/TFTP, not by a manual procedure.
● PHY2VLAN: VLAN ID to be used for tagged (data) frames received on the secondary
Ethernet interface when VLAN separation is enabled (up to 4 digits, from 0 to 4094, default
is 0). Can only be administered using DHCP/TFTP, not by a manual procedure.
● PHY2PRIO: Layer 2 (data) priority value to be used for tagged frames received on
the secondary Ethernet interface when VLAN separation is enabled (1 digit, 0 (zero)
through 7, default is 0). Can only be administered using DHCP/TFTP, not by a manual
procedure.
In the 4600 Series IP Telephone Installation Guide, the Local Administrative Option ADDR also
allows you to specify VLAN IDs and VLANTEST values. The Local Administrative Option QoS
allows you to specify values for L2Q, L2QAUD, and L2QSIG.
The 4600 Series IP Telephones can simultaneously support receipt of packets using, or not
using, 802.1Q parameters.
For additional information on VLAN administration, see VLAN Considerations
on page 91.