CLI Reference Guide-R04

Chapter 21 | ERPS Commands
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◆ If CFM determines that a MEP node which has been configured to monitor a
ring port with this command has gone down, this information is passed to
ERPS, which in turn processes it as a ring node failure. For more information on
how ERPS recovers from a node failure, refer to “Ethernet Ring Protection
Switching” in the Web Management Guide.
Example
Console(config-erps-inst)#mep-monitor east mep 1
Console(config-erps-inst)#
Related Commands
ethernet cfm domain (807)
ethernet cfm mep (812)
major-ring This command specifies the ERPS ring used for sending control packets. Use the no
form to remove the current setting.
Syntax
major-ring instance-name
no major-ring
instance-name - Name of the ERPS instance used for sending control
packets. (Range: 1-12 characters)
Default Setting
None
Command Mode
ERPS Instance Configuration
Command Usage
◆ ERPS control packets can only be sent on one instance. This command is used
to indicate that the current instance is a secondary ring, and to specify the
major instance which will be used to send ERPS control packets.
◆ The Ring Protection Link (RPL) is the west port and can not be configured. So
the physical port on a secondary instance must be the west port. In other
words, if a domain has two physical ring ports, this instance can only be a major
ring, not a secondary ring (or sub-domain) which can have only one physical
ring port. This command will therefore fail if the east port is already configured
(see the ring-port command).
Example
Console(config-erps-inst)#major-domain rd0
Console(config-erps-inst)#