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Cisco ONS 15327 Troubleshooting Guide, R3.4
April 2003
Chapter 1 General Troubleshooting
CTC Operation Troubleshooting
Figure 1-23 Ethernet Connectivity Reference
Procedure: Verify Ethernet Connections
Step 1 Verify that the alarm filter is turned OFF.
Step 2 Check for SONET alarms on the STS-N that carries the VLAN #1 Ethernet circuit. Clear any alarms by
looking them up in Chapter 2, “Alarm Troubleshooting.”
Step 3 Check for Ethernet-specific alarms. Clear any raised alarms by looking up that alarm in Chapter 2,
“Alarm Troubleshooting.”
Step 4 Verify that the ACT LED on the Ethernet card is green.
Step 5 Verify that Ports 1 and 3 on ONS 15327 #1 and Ports 1 and 2 on ONS 15327 #2 have green link-integrity
LEDs illuminated.
Step 6 If no green link-integrity LED is illuminated for any of these ports:
a. Verify physical connectivity between the ONS 15327s and the attached device.
b. Verify that the ports are enabled on the Ethernet cards.
c. Verify that you are using the proper Ethernet cable and that it is wired correctly, or replace the cable
with an Ethernet cable known to be good.
d. Check the status LED on the Ethernet card faceplate to ensure that the card booted up properly. This
LED should be steady green. If necessary, remove and reinsert the card and allow it to reboot.
e. It is possible that the Ethernet port is functioning properly but the link LED itself is broken. Run the
procedure in the “1.9.3 Lamp Test for Card LEDs” section on page 1-80.
Table 1-23 Ethernet Connections
Possible Problem Solution
Improperly seated
connections
You can fix most connectivity problems in an Ethernet network by following
a few guidelines. See Figure 1-23 when consulting the steps in the “Verify
Ethernet Connections” procedure on page 1-63.
Incorrect connections
Virtual
LAN # 1
Device "A"
192.168.1.25
255.255.255.0
VLAN #1 Member
Device "C"
192.168.1.50
255.255.255.0
VLAN #1 Member
Device "D"
192.168.1.100
255.255.255.0
VLAN #1 Member
ONS Node #1
Port #1 VLAN #1
Port #3 VLAN #1
ONS Node #2
Port #1 VLAN #1
Port #2 VLAN #1
Device "B"
192.168.1.75
255.255.255.0
VLAN #1 Member
32167