Supermicro SSE-G2252, User Manual

Page: 460 / 1401

Chapter 14: Basic Administration Protocols
Ethernet Ring Protection Switching
– 467 –
ring node keeps the ring port blocked due to the previous manual
switch command.
c.
An ring node with a local manual switch command that receives an
R-APS message or a local request of higher priority than R-APS (MS)
clear its manual switch request. The ring node then processes the
new higher priority request.
• Recovery for manual switching under revertive and non-
revertive mode is described under the Revertive parameter.
• Clear – Manually clears the protection state which has been
invoked by a forced switch or manual switch command, and the
node is operating under non-revertive mode; or before the WTR or
WTB timer expires when the node is operating in revertive mode.
• Two steps are required to make a ring operating in non-revertive
mode return to Idle state from forced switch or manual switch
state:
1.
Issue a Clear command to remove the forced switch command on the
node where a local forced switch command is active.
2.
Issue a Clear command on the RPL owner node to trigger the reversion.
•
The Clear command will also stop the WTR and WTB delay
timers and reset their values.
•
More detailed information about using this command for non-
revertive mode is included under the Revertive parameter. (See
the Command Usage section under “ERPS Ring Configuration”
on page 447 .)
W
EB
I
NTERFACE
To block a ring port:
1.
Click Administration, ERPS.
2.
Select Configure Domain from the Step list.
3.
Select Configure Operation from the Action list.
4.
Select the domain name from the drop-down list.
5.
Specify a Forced Switch, Manual Switch, or Clear operation.
6.
Click Apply.