Configuring Continuity Check Messages for Better Scalability
This topic describes how to configure CCM for better scalability. Junos OS provides enhancements to trigger faster protection-switching and convergence in the event of failures in Ethernet domains for Carrier Ethernet services. These enhancements can be used when CE devices in the Ethernet domain detect faster service failures and propagates the information in the interface-status TLV of the continuity-check messages (CCMs). When CCMs are received, PE devices can perform certain actions which facilitates faster protection-switching and convergence.
To configure CCM for better scalability:
You can apply an action profile to provide faster protection switching for point-to-point network topologies with local switching configured. See Configuring Faster Protection Switching for Point-to-Point Network Topologies.
You can apply an action profile to provide faster convergence for dual-homed multipoint-to-multipoint network topologies. See Configuring Faster Convergence for Dual-Homed Multipoint-to-Multipoint Network Topologies.
You can assign a primary virtual LAN (VLAN) ID in the maintenance association for increased flexibility in the number of tags. See Configuring a Primary VLAN ID for Increased Flexibility.
You can configure a maintenance association to accept a different maintenance association identifier (ID) from a neighbor by including a remote-maintenance-association statement. See Configuring a Remote Maintenance Association to Accept a Different ID.