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Cisco CISCO10720 Installation And Configuration Manual page 69

Internet router uplink cards installation and configuration
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Chapter 5
Troubleshooting the Uplink Cards
Table 5-6
Alarm
SRP1/1 Side A Keepalive
Failure (MAC)
SRP1/1 Side A Keepalive
Failure (SLOS)
SRP1/1 Side A Keepalive
Failure (SLOF)
SRP1/1 Side A Keepalive
Failure (LSD)
SRP1/1 Side A Keepalive
Failure (LSD)
SRP1/1 Side A Keepalive
OK
RPR-IEEE1/1 span
WEST Keepalive
Failure (MAC)
RPR-IEEE1/1 span
WEST Keepalive Failure
(SLOS)
RPR-IEEE1/1 span
WEST Keepalive
Failure (SLOF)
RPR-IEEE1/1 span
WEST Keepalive
Failure (LSD)
78-13113-06 B0
Keepalive Alarm Messages for All Uplink Cards
Description
MAC failure is detected
SONET section loss of signal
SONET section loss of frame
SONET line signal degrade
SONET line signal degrade
Keepalive failure removed;
Layer 2 Keepalive receiving
correctly
MAC failure is detected
SONET section loss of signal
SONET section loss of frame
SONET line signal degrade
Troubleshooting the Uplink Cards Installation
Solution
Check transport span for problems.
Typically SRP ring traverses a SONET
layer connection, creating this error.
Check fiber for breaks, power level, and
connectivity.
This is a SONET Layer 1 issue with fiber.
Check the fiber for degradation in (power
level) or clocking (internal versus line).
Check the affected fiber, transmit and
receive ports. Check power level.
This is a SONET Layer 1 issue with
signal degrade.
Check the neighbor
node/transport/regenerator for SONET
Layer 1 issues (LOS, LSF).
This is a SONET Layer 1 issue with an
intermediate unit (usually transport
connection or regenerator) forwarding an
AIS.
None.
Check transport span for problems.
Typically RPR ring traverses a SONET
layer connection, creating this error.
Check fiber for breaks, power level, and
connectivity.
This is a SONET Layer 1 issue with fiber.
Check the fiber for degredation in (power
level) or clocking (interval versus line).
Check the affected fiber transmit (TX)
and receive (RX) ports. Check the power
level.
This is a SONET Layer 1 issue with
signal degradation.
Book Title
5-7

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