Troubleshooting guide

10-43
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 10 Troubleshooting Ethernet, ATM Uplink, and POS Uplink Interfaces
Troubleshooting Packet-over-SONET Uplink with Enhanced Gigabit Ethernet Interface Modules
Step 3 POS defects and alarms are similar to alarms occurring when troubleshooting and diagnosing T1/E1 and
T3/E3 connections (for example, LOS, LOF, and AIS). For T1 connection troubleshooting procedures,
refer to the T1 Troubleshooting at the following URL:
http://www.cisco.com/warp/public/116/t1_flchrt_main.html
If you determine that the interface is configured incorrectly, refer to the “Configuring Interfaces” chapter
in the Layer 3 Switching Software Feature and Configuration Guide.
Follow these steps to troubleshoot the POS physical interface:
Step 1 Use the show controllers pos card/subcard/port command to continue checking the memory
configuration.
Switch# show controllers pos 3/0/0
Interface POS3/0/0
Hardware is Packet Over SONET, One-port OC12, Single Mode Intermediate Reach
POS3/0/0
SECTION
LOF = 1 LOS = 0 BIP(B1) = 92
LINE
AIS = 0 RDI = 0 FEBE = 342 BIP(B2) = 1179
PATH
AIS = 0 RDI = 0 FEBE = 38 BIP(B3) = 52
LOP = 0
PLM-P = 1 UNEQ-P = 0
Active Alarms: None
Active Defects: PLM-P
Alarm reporting enabled for: SF SLOS SLOF B1-TCA B2-TCA PLOP B3-TCA
Framing: SONET
APS
COAPS = 0 PSBF = 0
State: PSBF_state = False
Rx(K1/K2): 00/00 Tx(K1/K2): 00/00
S1S0 = 0x00, C2 = 0x16
PATH TRACE BUFFER: UNSTABLE
Remote hostname :
Remote interface:
Remote IP addr :
Remote Rx(K1/K2): / Tx(K1/K2): /
BER thresholds: SF = 10e-3 SD = 10e-6
TCA thresholds: B1 = 10e-6 B2 = 10e-6 B3 = 10e-6
Clock source: Configured: internal Current: internal
Last valid pointer from H1-H2: 0x20A
----- XPIF PCS -----
F000 chan0 chan1 chan2 chan3 sstr 1202
0016 0006 0006 0006
task0 11 11 11 11
task1 4D8 4D8 4D8 4D8
task2 11 11 11 11
task3 4D8 4D8 4D8 4D8
----- XPIF SLICER Registers -----