Troubleshooting guide

10-12
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 10 Troubleshooting Ethernet, ATM Uplink, and POS Uplink Interfaces
Troubleshooting 10/100 Ethernet Interface Modules
Follow these steps to troubleshoot the status of 10/100BASE-T and BASE-FX interfaces:
Step 1 Use the show controllers FastEthernet card/subcard/port command to check the configuration.
Switch# show controllers fastEthernet 3/0/0
IF Name: FastEthernet3/0/0
Port Status UP
Loopback Reg [3-0]|[7-4]: 0x8|0x8
Duplex/Speed Reg [3-0]|[7-4]: 0xFFF7|0x0
FPGA Rev : 3.8
Internal Reset Trigger Count: 0
Slicer registers
SMDR 0x0060 (Tx En,Rx En)
SSTR 0x1000
EVER 0x1704 (C1)
SSMR 0x4000 SIMR 0x0000 MBXW 0x0000 MBXR 0x0000
SPER 0xF000 GMUX VER 0xF000 MARKER 0x0000
MAC registers
CMCR : 0x00000443 (Tx Enabled,Rx Enabled,Full)
CMPR : 0x140A0E60
MII registers:
Control Register (0x0): 0x1000 (Auto negotiation enabled)
Status Register (0x1): 0x782D (Auto negotiation complete)
PHY Identification Register 1 (0x2): 0x7810
PHY Identification Register 2 (0x3): 0x43
Auto Neg. Advertisement Reg (0x4): 0x1E1 (Speed 100 ,Duplex Full )
Auto Neg. Partner Ability Reg (0x5): 0x81 (Speed 100 ,Duplex Half )
Auto Neg. Expansion Register (0x6): 0x0
Mirror Register (0x10): 0x630
Interrupt Enable Register (0x11): 0x0
Interrupt Status Register (0x12): 0x4000
Configuration Register (0x13): 0x0 (UTP, Tx Enabled)
Chip Status Register (0x14): 0x28C8 (Link Up,a-Half,a-100 )
Link Status Register [3-0]|[7-4]: 0x1|0x0
Counters :
MAC Receive Counters:
Bytes =7592927
pkt64 =22
pkt65to127 =0
pkt128to255 =0
pkt256to511 =21564
pkt512to1023 =1
pkt1024to1518 =0
good_giants =0
error_giants =0
good_runts =0
error_runts =0
ucast_pkts =18
mcast_pkts =21566
bcast_pkts =3
align_errs =0
fcs_errs =0
overruns =0
MAC Transmit Counters: