Supermicro SSE-G2252, Руководство пользователя

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Chapter 35: ERPS Commands
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C
OMMAND
U
SAGE
•
If this command is used to monitor the link status of an ERPS node with
CFM continuity check messages, then the MEG level set by the meg-
level command must match the authorized maintenance level of the
CFM domain to which the specified MEP belongs.
•
To ensure complete monitoring of a ring node, use the mep-monitor
command to specify the CFM MEPs used to monitor both the east and
west ports of the ring node.
•
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” on page 442 .
E
XAMPLE
Console(config-erps)#mep-monitor east mep 1
Console(config-erps)#
R
ELATED
C
OMMANDS
ethernet cfm domain (1275)
ethernet cfm mep (1279)
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