Cisco 15310-MA Guide de dépannage télécharger pdf (Page 72)

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, Release 9.0

78-18394-01

Chapter 1 General Troubleshooting

Troubleshooting Ethernet Circuit Paths With Loopbacks

Step 5 Clear the terminal loopback on the port before testing the next segment of the network circuit path:

a. Double-click the CE100T-8 card with the terminal loopback in the source node.

b. Click the Maintenance > Loopback tabs.

c. Select None from the Loopback Type column for the port being tested.

d. Select the appropriate state (IS; OOS,DSBLD; OOS,MT) in the Admin State column for the port

being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 6 Clear the terminal loopback circuit before testing the next segment of the network circuit path:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box. Do not check any check boxes.

Step 7 Complete the “1.6.4 Perform a Facility Loopback on an Intermediate-Node OC-N Port” procedure on

page 1-39.

1.6.3 Perform a Hairpin Test on a Source-Node Ethernet Port

The hairpin test is performed on the cross-connect card in the network circuit. A hairpin circuit uses the

same port for both source and destination. Figure 1-6 shows an example of a hairpin loopback on a

source-node port.

Figure 1-6 Hairpin Loopback on a Source-Node Ethernet Port

Note The ONS 15310 does not support simplex operation on the cross-connect card. Two cross-connect cards

of the same type must be installed for each node.

Note Hairpin loopbacks require on-site personnel.

Complete the “Create the Hairpin Circuit on the Source-Node Ethernet Port” procedure on page 1-37.

Source

ONS Node

Destination

ONS Node

280095

OC-N CE-MR-6XCOC-N

Te st Set

XCCE-MR-6

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Cisco 15310-MA Guide de dépannage Page 72