Troubleshooting guide

5-13
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-02
Chapter 5 Troubleshooting Switch Router ATM Interface Connections
Common show controller Troubleshooting Fields
The following example of a show controllers command displays the typical location of the Port status,
Active Alarms, and Active Defects fields for an ATM interface:
Switch# show controllers atm 9/0/0
IF Name: ATM9/0/0, Chip Base Address: 0xBC480000 Framer Address: 0xBC488000
Port type: OC48c Port rate: 2488000 Kbps Port medium: SM Fiber
Port status (0x8021) - LINE AIS LCD
Loopback:None Flags:8300
TX Led: Traffic Pattern RX Led: Steady Red
TX clock source: network-derived
Framing mode: sts-48c
Cell payload scrambling on , Sts-stream scrambling on
OC48c counters:
Key: txcell - # cells transmitted
rxcell - # cells received
b1 - # section BIP-8 errors
b2 - # line BIP-8 errors
b3 - # path BIP-8 errors
ocd - # out-of-cell delineation errors
g1 - # path FEBE errors
z2 - # line FEBE errors
chcs - # correctable HEC errors
uhcs - # uncorrectable HEC errors
txcell:0, rxcell:0
b1:0, b2:0, b3:0, ocd:0
g1:0, z2:0, chcs:0, uhcs:0
OC48c errored secs:
b1:0, b2:0, b3:0, ocd:0
g1:0, z2:0, chcs:0, uhcs:0
OC48c error-free secs:
b1:0, b2:0, b3:0, ocd:0
g1:0, z2:0, chcs:0, uhcs:0
.
[Infomation Deleted]
.
Active Alarms:
Active Defects: LAIS
Alarm reporting enabled for: SF SLOS SLOF B1-TCA B2-TCA B3-TCA
In the previous example the following errors appear:
• Port status— LINE AIS LCD or line alarm indicate signal and loss of cell delineation. Table 5-1 lists
the port status errors and causes plus, recommended actions.
• TX Led—Traffic pattern indicates this interface is transmitting and RX Led—Steady Red indicating
this interface is not receiving a signal. Each interface type in the following sections provides a table
with the port adapter LED descriptions.
• Counters—these error counters are described in Table 5-2.
• Active Alarms—empty. Table 5-1 lists the active alarm errors and causes plus, recommended
actions.
• Active Defects—LAIS. Table 5-1 lists the active defect errors and causes plus, recommended
actions.