Cisco ATA-186 Administrator's Manual page 38

Specifying a Preconfigured VLAN ID or Disabling VLAN IP Encapsulation
Table 3-2
Feature
Static VLAN
CDP-acquired
VLAN
No VLAN
No CDP
No CDP and no
VLAN
N/A indicates that the variable is not applicable to the feature and the setting of this varaible does not affect the feature.
Example
The following procedure shows you how to configure the OpFlags and VLANSetting parameters to
allow the Cisco ATA to use a user-specified VLAN ID. In this example, the voice VLAN ID is 115 (in
decimal format).
Set bits 4-6 of the OpFlags parameter to 1, 0, and 1, respectively. This setting translates to the following
Step 1
bitmap:
xxxx xxxx xxxx xxxx xxxx xxxx x101 xxxx
The remaining bits of the OpFlags parameter, using all default values, make up the following bitmap
representation:
0000 0000 0000 0000 0000 0000 0xxx 0010
Therefore, the resulting value of the OpFlags parameter becomes the following bitmap representation:
0000 0000 0000 0000 0000 0000 0101 0010
In hexadecimal format, this value is 0x00000052.
Set bits 18-29 of the VLANSetting parameter to to voice VLAN ID 115. This setting translates to the
Step 2
following bitmap
xx00 0001 1100 11xx xxxx xxxx xxxx xxxx
where 000001110011 is the binary representation of the demical value 115.
The remaining bits of the VLANSetting parameter, using all default values, make up the following
representation:
00xx xxxx xxxx xx00 0000 0000 0010 1011
Therefore, the resulting value of the VLANSetting parameter becomes the following bitmap
representation:
0000 0001 1100 1100 0000 0000 0010 1011
In hexadecimal format, this value is 0x01cc002b.
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide (SIP)
3-4
VLAN-Related Features and Corresponding Configuration Parameters
OpFlags Bit 4 OpFlags Bit 5 OpFlags Bit 6
1
0
N/A
N/A
0
0 1
0 0
1 N/A
N/A 1
1 1
Chapter 3 Configuring the Cisco ATA for SIP
VLANSetting
Bits 18-29
VLAN ID
N/A
N/A
N/A
N/A
OL-3410-01