LevelOne GTL-2691 - Manual (Page 1097)

C HAPTER 38 | ERPS Commands
– 1097 –
more information on how ERPS recovers from a node failure, refer to
"Ethernet Ring Protection Switching" on page 464 .
E XAMPLE
Console(config-erps)#mep-monitor east mep 1
Console(config-erps)#
R ELATED C OMMANDS
ethernet cfm domain (1315)
ethernet cfm mep (1320)
node-id This command sets the MAC address for a ring node. Use the no form to
restore the default setting.
S YNTAX
node-id mac-address
mac-address – A MAC address unique to the ring node. The MAC
address must be specified in the format xx-xx-xx-xx-xx-xx or
xxxxxxxxxxxx.
D EFAULT S ETTING
CPU MAC address
C OMMAND M ODE
ERPS Configuration
C OMMAND U SAGE
◆ The ring node identifier is used to identify a node in R-APS messages
for both automatic and manual switching recovery operations.
For example, a node that has one ring port in SF condition and detects
that the condition has been cleared, will continuously transmit R-APS
(NR) messages with its own Node ID as priority information over both
ring ports, informing its neighbors that no request is present at this
node. When another recovered node holding the link blocked receives
this message, it compares the Node ID information with its own. If the
received R-APS (NR) message has a higher priority, this unblocks its
ring ports. Otherwise, the block remains unchanged.
◆ The node identifier may also be used for debugging, such as to
distinguish messages when a node is connected to more than one ring.
E XAMPLE
Console(config-erps)#node-id 00-12-CF-61-24-2D
Console(config-erps)#