Cisco ONS 15454 - 1.10.17 VLAN Cannot Connect to Network Device from Untag Port

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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 1 General Troubleshooting
1.10.17 VLAN Cannot Connect to Network Device from Untag Port
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 15454 #1 and Ports 1 and 2 on ONS 15454 #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 15454s 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 a known-good Ethernet cable.
d. Check the status LED on the Ethernet card faceplate to ensure 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.
Complete the “Verify General Card LED Operation” procedure on page 1-108.
Step 7 Verify connectivity between device A and device C by pinging between these locally attached devices.
Complete the “1.9.8 Verify PC Connection to the ONS 15454 (ping)” procedure on page 1-119. If the
ping is unsuccessful:
a. Verify that device A and device C are on the same IP subnet.
b. Open the Ethernet card in CTC card view and click the Provisioning > VLAN tabs to verify that
both Port 1 and Port 3 on the card are assigned to the same VLAN.
c. If a port is not assigned to the correct VLAN, click that port column in the VLAN row and set the
port to Tagged or Untag. Click Apply.
Step 8 Repeat Step 7 for devices B and D.
Step 9 Verify that the Ethernet circuit that carries VLAN #1 is provisioned and that ONS 15454 #1 and
ONS 15454 #2 ports also use VLAN #1.
1.10.17 VLAN Cannot Connect to Network Device from Untag Port
Symptom Networks that have a VLAN with one ONS 15454 Ethernet card port set to Tagged and one
ONS 15454 Ethernet card set to Untag might have difficulty implementing Address Resolution Protocol
(ARP) for a network device attached to the Untag port (Figure 1-50). They might also see a higher than