Cisco 10720 - Internet Router Installation And Configuration Manual page 117

Chapter 4 Troubleshooting
Table 4-6
Alarm
RPR-IEEE1/1 Effective
jumbo pref on ring is set
for regular frame
RPR-IEEE1/1 Effective
protection mode on station
is now steering
RPR-IEEE1/1 Effective
protection mode on station
is now wrapping
Configured protection
mode is inconsistent with
other stations on ring
Table 4-7
Alarm
SRP1/1 wrapped on side
B (side A User Request
Forced Switch)
SRP1/1 wrapped on side
B (side A User Request
Manual Switch)
SRP1/1 wrapped on side
B (side A Self Detect
Signal Fail)
SRP1/1 wrapped on side
B (side A Span Neighbor
Signal Degrade)
SRP1/1 wrapped on side
B (side A Self Detect
Wait to Restore [WTR])
78-13062-10
Other IEEE 802.17 RPR Alarm Messages (continued)
Description
At least one station on
the ring does not
support jumbo frame
preference, MTU for
the ring has been
changed to REGULAR
MTU (1500 bytes).
Protection preference
has been changed.
Protection mode for
this station is now
steering.
Protection preference
has been changed.
Protection mode for
this station is now
wrapping.
Not all stations in the
ring support the same
protection preference
(wrapping or steering).
This inconsistency will
create failures in a
protection event.
SRP Wrap Messages
Description
User-initiated forced switch on
side A on node
User-initiated manual switch
on side A on node
SONET layer 1 signal fail
detected
SONET layer 1 signal fail
detected
Wrap cleared, node initiated
Wait to Restore (WTR) state
Cisco 10720 Internet Router Installation and Configuration Guide
Solution
None. Configure jumbo preference on all
stations to change support to JUMBO MTU
(9100 bytes).
None.
None.
Change all stations to support the same
protection preference, all stations must support
wrapping or steering. Use the show rpr-iee
topology command to verify protection
preference. Use the rpr protection preference
wrap or no rpr protection preference wrap
configuration command to change the
preference.
Solution
User initiated, none.
User initiated, none.
Investigate Keepalive failure. Wrap
occurred.
Keepalive failure—SLOS, SLOF, LSF, or
LAIS.
Investigate Keepalive failure. Wrap
occurred.
Keepalive failure—LSD.
WTR period is 10 to 360 seconds (user
configured), node will unwrap at end of
WTR. None.
Alarm Messages
4-17