Cisco ATA188-I2-A Administration Guide - Page 40
Parameter and Bits, Reference, OpFlags Bit 4, VLANSetting, Bits 18-29, Feature, Table 3-1
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Specifying a Preconfigured VLAN ID or Disabling VLAN IP Encapsulation Chapter 3 Configuring the Cisco ATA for H.323 Table 3-1 Parameters and Bits for Preconfiguring a VLAN ID Parameter and Bits Reference OpFlags: OpFlags, page 5-34 • Bit 4-Enable the use of user-specified voice VLAN ID. • Bit 5-Disable VLAN encapsulation • Bit 6-Disable CDP discovery. VLANSetting: VLANSetting, page 5-12 • Bits 0-2-Specify VLAN CoS bit value (802.1P priority) for TCP packets. • Bits 3-5-Specify VLAN CoS bit value (802.1P priority) for Voice IP packets • Bits 18-29-User-specified 802.1Q VLAN ID Table 3-2 VLAN-Related Features and Corresponding Configuration Parameters Feature Static VLAN CDP-acquired VLAN No VLAN No CDP No CDP and no VLAN VLANSetting OpFlags Bit 4 OpFlags Bit 5 OpFlags Bit 6 Bits 18-29 1 0 1 VLAN ID 0 0 0 N/A N/A 1 N/A N/A N/A N/A 1 N/A 0 1 1 N/A 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). Step 1 Set bits 4-6 of the OpFlags parameter to 1, 0, and 1, respectively. This setting translates to the following 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 Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide for H.323 (version 3.0) 3-4 OL-4804-01