ii 
Configuring RRPP Ports················································································································3-12 
Configuring RRPP Nodes··············································································································3-13 
Activating an RRPP Domain·················································································································3-15 
Configuring RRPP Timers·····················································································································3-15 
Configuring an RRPP Ring Group ········································································································3-16 
Displaying and Maintaining RRPP········································································································3-17 
RRPP Configuration Examples·············································································································3-17 
Single Ring Configuration Example·······························································································3-17 
Intersecting Ring Configuration Example······················································································3-19 
Intersecting-Ring Load Balancing Configuration Example····························································3-24 
Troubleshooting ····································································································································3-34 
4 DLDP Configuration ··································································································································4-1 
Overview ·················································································································································4-1 
Background ·····································································································································4-1 
How DLDP Works····························································································································4-2 
DLDP Configuration Task List·················································································································4-8 
Enabling DLDP········································································································································4-8 
Setting DLDP Mode ································································································································4-9 
Setting the Interval for Sending Advertisement Packets·········································································4-9 
Setting the DelayDown Timer ···············································································································4-10 
Setting the Port Shutdown Mode ··········································································································4-10 
Configuring DLDP Authentication ·········································································································4-11 
Resetting DLDP State···························································································································4-11 
Resetting DLDP State in System View··························································································4-12 
Resetting DLDP State in Port view/Port Group View····································································4-12 
Displaying and Maintaining DLDP ········································································································4-12 
DLDP Configuration Example···············································································································4-13 
Troubleshooting ····································································································································4-15 
5 Ethernet OAM Configuration····················································································································5-1 
Ethernet OAM Overview ·························································································································5-1 
Background ·····································································································································5-1 
Major Functions of Ethernet OAM···································································································5-1 
Ethernet OAMPDUs ························································································································5-1 
How Ethernet OAM Works ··············································································································5-3 
Standards and Protocols·················································································································5-5 
Ethernet OAM Configuration Task List ···································································································5-5 
Configuring Basic Ethernet OAM Functions ···························································································5-6 
Configuring Link Monitoring ····················································································································5-6 
Configuring Errored Symbol Event Detection ·················································································5-7 
Configuring Errored Frame Event Detection ···················································································5-7 
Configuring Errored Frame Period Event Detection········································································5-7 
Configuring Errored Frame Seconds Event Detection····································································5-7 
Enabling OAM Remote Loopback···········································································································5-8 
Displaying and Maintaining Ethernet OAM Configuration·······································································5-9 
Ethernet OAM Configuration Example····································································································5-9 
6 Connectivity Fault Detection Configuration ···························································································6-1 
Overview ·················································································································································6-1