Supermicro SSE-G2252, User Manual

Page: 1050 / 1401

Chapter 35: ERPS Commands
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b.
Then, after the operator issues the erps clear command at the RPL
Owner Node, this ring node blocks the ring port attached to the RPL,
transmits an R-APS (NR, RB) message over both ring ports,
informing the ring that the RPL is blocked, and flushes its FDB.
c.
The acceptance of the R-APS (NR, RB) message triggers all ring
nodes to unblock any blocked non-RPL which does not have an SF
condition. If it is an R-APS (NR, RB) message without a DNF
indication, all ring nodes flush their FDB. This action unblocks the
ring port which was blocked as result of an operator command.
E
XAMPLE
Console(config-erps)#non-revertive
Console(config-erps)#
propagate-tc
This command enables propagation of topology change messages for a
secondary ring to the primary ring. Use the no form to disable this feature.
S
YNTAX
[no] propagate-tc
D
EFAULT
S
ETTING
Disabled
C
OMMAND
M
ODE
ERPS Configuration
C
OMMAND
U
SAGE
•
When a secondary ring detects a topology change, it can pass a
message about this event to the major ring. When the major ring
receives this kind of message from a secondary ring, it can clear the
MAC addresses on its ring ports to help the secondary ring restore its
connections more quickly through protection switching.
•
When the MAC addresses are cleared, data traffic may flood onto the
major ring. The data traffic will become stable after the MAC addresses
are learned again. The major ring will not be broken, but the bandwidth
of data traffic on the major ring may suffer for a short period of time
due to this flooding behavior.
E
XAMPLE
Console(config-erps)#propagate-tc
Console(config-erps)#
raps-def-mac
This command sets the switch’s MAC address to be used as the node
identifier in R-APS messages. Use the no form to use the node identifier
specified in the G8032 standards.