HP 6125G HP 6125G & 6125G/XG Blade Switches High Availability Configur - Page 26
Configuring basic CFD settings, Enabling CFD, Configuring the CFD protocol version
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• The port is configured as a MIP or an inward-facing MEP that can still receive and send CFD messages except CCM messages. For more information about the spanning tree feature, see Layer 2-LAN Switching Configuration Guide. Configuring basic CFD settings This section provides procedures for configuring basic CFD settings. Enabling CFD Enable CFD before you perform other configuration tasks. To enable CFD on a device: Step 1. Enter system view. 2. Enable CFD. Command system-view cfd enable Remarks N/A By default, CFD is disabled. Configuring the CFD protocol version Three CFD protocol versions are available: IEEE 802.1ag draft5.2 version, IEEE 802.1ag draft5.2 interim version, and IEEE 802.1ag standard version. Devices in the same MD must use the same CFD protocol version. Otherwise, they cannot exchange CFD protocol packets. If an MD is created by using the cfd md command or automatically generated by using the cfd service-instance maid format command on a device, you cannot switch between the standard version and draft5.2 version (or draft5.2 interim version). However, you can switch between the draft5.2 version and draft5.2 interim version. This restriction does not apply to the device without an MD configured. To configure the CFD protocol version: Step Command Remarks 1. Enter system view. system-view N/A 2. Configure the CFD protocol version. cfd version { draft5 | draft5-plus | standard } Optional. By default, CFD uses the standard version of IEEE 802.1ag. Configuring service instances Before configuring the MEPs and MIPs, first configure service instances. A service instance is a set of service access points (SAPs), and belongs to an MA in an MD. A service instance is indicated by an integer to represent an MA in an MD. The MD and MA define the level and VLAN attribute of the messages handled by the MPs in a service instance. Service instances fall into two types: • Service instance with the MD name, which takes effect in any version of CFD. 19