H3C S5600 Series Operation Manual page 742

Operation Manual – DHCP
H3C S5600 Series Ethernet Switches
II. Meanings of the sub-options for Option 184
Table 2-1 Meanings of the sub-options for Option 184
Sub-option
NCP-IP
(sub-option 1)
AS-IP
(sub-option 2)
Voice VLAN
Configuration
(sub-option 3)
Feature
The IP address of
the NCP server
carried by
sub-option 1 of
The NCP-IP Option 184 is
sub-option carries intended for
the IP address of identifying the
the network call
server serving as
processor (NCP). the network call
controller and the
server used for
application
downloading.
The alternate NCP
server identified by
sub-option 2 of
Option 184 acts as
the backup of the
The AS-IP NCP server. The
sub-option carries NCP server
the IP address of specified by this
the alternate option is used only
server (AS). when the IP
address carried by
the NCP-IP
sub-option is
unreachable or
invalid.
The sub-option 3
of Option 184
comprises two
parts:
The voice VLAN
configuration
sub-option carries
the ID of the voice
VLAN and the flag
indicating whether
the voice VLAN
identification
function is
enabled.
2-15
Chapter 2 DHCP Server Configuration
Function
When used in
Option 184, this
sub-option must
be the first
sub-option, that is,
sub-option 1
The AS-IP
sub-option takes
effect only when
sub-option 1 (that
is, the NCP-IP
sub-option) is
defined
A flag value of 0
indicates
the voice VLAN
identification
function is not
enabled,
One part
which case the
carries the flag
information
indicating
carried by the
whether the
VLAN ID part
voice VLAN
will
identification
neglected.
function is
A flag value of 1
enabled.
indicates
The other part
the voice VLAN
carries the ID of
identification
the voice
function
VLAN.
enabled.
Note
that
in
be
that
is