Cisco 10720 Configuration Guide - Page 107

Fiber Misconnection, Basic Troubleshooting SRP for the Uplink Card

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Chapter 4 Troubleshooting Basic Troubleshooting SRP for the Uplink Card Fiber Misconnection Use the show rpr-ieee EXEC command to check for misconnected fiber cables, for example, span East to span East or TX to TX. The message, "Misconnection Alarm" shows at the top of the show rpr-ieee command output when there is a fiber misconnection. • One alarm-the problem is with another node on the ring. For example, span East connected to span East. • Two alarms-the problem is your node. For example, span East to span East and span West to span West. Basic Troubleshooting SRP for the Uplink Card This section provides basic troubleshooting guidelines for SRP on the DPT, POS/DPT, and RPR/SRP uplink cards. For additional information about SRP configurations, refer to the Cisco IOS Software Configuration for the Cisco 10720 Internet Router publication. For additional Cisco SRP-related documentation, see the "Related Documentation" section on page xix. The following sections present information on show commands, verification steps, and alarm messages: • Using the show controller srp Command, page 4-7 • Using the show arp Command, page 4-9 • Verifying Clocking, page 4-9 • PASS-THRU Mode, page 4-9 • Verify the PASS-THRU Mode, page 4-10 • Using the show srp topology Command, page 4-10 • Using the show srp ips Command, page 4-10 • Fiber Misconnection, page 4-11 Using the show controller srp Command Verify the following using the show controller srp command: • RX optics readout values are within specifications. For example: RX readout values: -11 dBm - Within specifications, RX readout values: -15 dBm - Within specifications • Error counters are not incrementing. • There are no active defects or alarms. For example, Active Alarms: None • Proper clocking configuration for each side (A and B). For example, Clock source : Internal • Proper hosts are on the proper side. For example, Remote side id : A, Remote side id : B Router# show controllers srp Interface SRP1/1 Hardware is OC48 SRP SRP1/1 - Side A (Outer RX, Inner TX) 78-13062-10 Cisco 10720 Internet Router Installation and Configuration Guide 4-7

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4-7
Cisco 10720 Internet Router Installation and Configuration Guide
78-13062-10
Chapter 4
Troubleshooting
Basic Troubleshooting SRP for the Uplink Card
Fiber Misconnection
Use the
show rpr-ieee EXEC
command to check for misconnected fiber cables, for example, span East
to span East or TX to TX. The message, “Misconnection Alarm” shows at the top of the
show rpr-ieee
command output when there is a fiber misconnection.
•
One alarm—the problem is with another node on the ring. For example, span East connected to span
East.
•
Two alarms—the problem is your node. For example, span East to span East and span West to span
West.
Basic Troubleshooting SRP for the Uplink Card
This section provides basic troubleshooting guidelines for SRP on the DPT, POS/DPT, and RPR/SRP
uplink cards. For additional information about SRP configurations, refer to the
Cisco IOS Software
Configuration for the Cisco 10720 Internet Router
publication
.
For additional Cisco SRP-related
documentation, see the
“Related Documentation” section on page xix
.
The following sections present information on show commands, verification steps, and alarm messages:
•
Using the show controller srp Command, page 4-7
•
Using the show arp Command, page 4-9
•
Verifying Clocking, page 4-9
•
PASS-THRU Mode, page 4-9
•
Verify the PASS-THRU Mode, page 4-10
•
Using the show srp topology Command, page 4-10
•
Using the show srp ips Command, page 4-10
•
Fiber Misconnection, page 4-11
Using the show controller srp Command
Verify the following using the
show controller srp
command:
•
RX optics readout values are within specifications. For example: RX readout values: -11 dBm
-
Within specifications, RX readout values: -15 dBm
- Within specifications
•
Error counters are not incrementing.
•
There are no active defects or alarms. For example, Active Alarms:
None
•
Proper clocking configuration for each side (A and B). For example,
Clock source : Internal
•
Proper hosts are on the proper side. For example, Remote side id
: A,
Remote side id
: B
Router#
show controllers srp
Interface SRP1/1
Hardware is OC48 SRP
SRP1/1 - Side A (Outer RX, Inner TX)