CLI Reference Guide-R05

Chapter 18 | ERPS Commands
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Holdoff Guard WTB WTR WTB Expire WTR Expire
-------- ------- ------- ------- ---------- ----------
0 ms 500 ms 5500 ms 5 min
W/E Interface Port State Local SF Local FS Local MS MEP RPL
---- --------- ---------- -------- -------- -------- ---- ---
West Eth 1/ 1 Blocking No No No Yes
East Eth 1/ 3 Forwarding No No No No
Console#
Table 94 on page 516 describes most of the parameters shown by show erps
domain command. The following table includes the remaining parameters.
This example displays statistics for all configured ERPS rings.
Console#show erps statistics
ERPS statistics for domain r&d :
Interface Local SF Local Clear SF
------------ ---------- --------------
(W) Eth 1/ 1 0 0
SF NR NR-RB FS MS
---------- ---------- ---------- ---------- ----------
Sent 0 62 948 0 0
Received 0 0 0 0 0
Ignored 0 0 0 0 0
Table 95: show erps domain - detailed display description
Field Description
Major Domain Name of the ERPS major domain.
Node ID A MAC address unique to this ring node.
R-APS with VC The R-APS Virtual Channel is the R-APS channel connection used to
tunnel R-APS messages between two interconnection nodes of a sub-
ring in another Ethernet ring or network.
R-APS Def MAC Indicates if the switch’s MAC address is used to identify the node in R-
APS messages.
Propagate TC Shows if the ring is configured to propagate topology change
notification messages.
Non-ERPS Device Protect Shows if the RPL owner node is configured to send non-standard
health-check packets when it enters protection state without any link
down event having been detected through SF messages
Holdoff The hold-off timer interval used to filter out intermittent link faults.
Guard The guard timer interval used to prevent ring nodes from receiving
outdated R-APS messages.
WTB The wait-to-block timer interval used to delay reversion after a Forced
Switch or Manual Switch has been cleared.
WTR The wait-to-restore timer interval used to verify that the ring has
stabilized before blocking the RPL after recovery from a signal failure.
WTB Expire The time before the wait-to-block timer expires.
WTR Expire The time before the wait-to-restore timer expires.