HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 2 - LAN Switching Co - Page 213
Configuration procedure, Configuring LLDP to advertise a specific voice VLAN, Configuration guidelines
View all HP 6125G manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 213 highlights
• Globally enable LLDP. • Enable LLDP on the port connecting to an IP phone and configure the port to operate in TxRx mode. Configuration procedure CAUTION: The maximum TTL value that CDP allows is 255 seconds. To make CDP-compatible LLDP work properly with Cisco IP phones, be sure that the product of the TTL multiplier and the LLDPDU transmit interval is less than 255 seconds. CDP-compatible LLDP operates in one of the follows modes: • TxRx-CDP packets can be transmitted and received. • Disable-CDP packets cannot be transmitted or received. To make CDP-compatible LLDP take effect on specific ports, first enable CDP-compatible LLDP globally, and then configure CDP-compatible LLDP to operate in TxRx mode. To enable LLDP to be compatible with CDP: Step 1. Enter system view. 2. Enable CDP compatibility globally. 3. Enter Layer 2 Ethernet interface view. 4. Configure CDP-compatible LLDP to operate in TxRx mode. Command system-view lldp compliance cdp interface interface-type interface-number lldp compliance admin-status cdp txrx Remarks N/A Disabled by default. N/A Disable mode by default. Configuring LLDP to advertise a specific voice VLAN Voice VLAN advertisement through LLDP is available only for LLDP-enabled IP phones. If CDP-compatibility is enabled, this feature is also available for CDP-enabled IP phones. For more information about CDP compatibility, see "Configuring CDP compatibility." For more information about the voice VLANs, see "Configuring a voice VLAN." Configuration guidelines By default, if the voice VLAN feature is configured on an LLDP-enabled port, LLDP advertises this voice VLAN to the IP hone connected to the port. This feature allows you to specify the voice VLAN information that LLDP will advertise to IP phones through network policy TLVs. Figure 67 shows the procedure of voice VLAN advertisement through LLDP. 204