Troubleshooting guide

6-63
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 6 Troubleshooting Switch Router ATM Network Connections
Troubleshooting Dropped Connections
Step 3 Use the show running-config command to display the clock source configuration of
ATM interface 4/0/0.
ManuFl1Ls1# show running-config
Building configuration...
Current configuration:
!
version 11.2
no service pad
service udp-small-servers
service tcp-small-servers
!
hostname Switch
!
boot bootldr bootflash:/tftpboot/ls1010-wp-mz.112-1.4.WA3.0.15
!
network-clock-select 2 ATM3/1/0
<Information Deleted>
!
interface ATM4/0/0
no keepalive
atm manual-well-known-vc
atm access-group tod1 in
atm pvc 0 35 rx-cttr 3 tx-cttr 3 interface ATM2/0/0 0 any-vci encap qsaal
atm route-optimization soft-vc interval 360 time-of-day 18:0 5:0
clock-source network-derived
!
<Information Deleted>
ManuFl1Ls1#
The clock source field indicates the clocking configuration of ATM interface 4/0/0.
Step 4 Use the show controllers atm card/subcard/port command to display the interface controller status of
ATM interface 4/0/0.
ManuFl1Ls1# show controllers atm 4/0/0
IF Name: ATM4/0/0 Chip Base Address: A8808000
Port type: 155UTP Port rate: 155 Mbps Port medium: UTP
Port status:SECTION LOS Loopback:None Flags:8300
TX Led: Traffic Pattern RX Led: Traffic Pattern TX clock source: network-derived
Framing mode: sts-3c
Cell payload scrambling on
Sts-stream scrambling on
OC3 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 - not implemented g1 - # path FEBE errors z2
- # line FEBE errors chcs - # correctable HEC errors uhcs - # uncorrectable HEC
errors
<Information Deleted>
phy_tx_cnt:0, phy_rx_cnt:0
ManuFl1Ls1#
Step 5 Check the TX clock source field. This field indicates that the clocking configuration of the interface is
either internal or network derived.