Cisco ONS 15454 Series Procedure Manual page 197

Chapter 6 Create Circuits and VT Tunnels
Stop. You have completed this procedure.
NTP-A133 Create an Automatically Routed VT Tunnel
Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
VT tunnels allow VT circuits to pass through intermediary ONS 15454s without consuming VT matrix
Note
resources on the cross-connect card. VT tunnels can carry 28 VT1.5 circuits. In general, creating VT
tunnels is a good idea if you are creating many VT circuits from the same source and destination. Refer
to the "Circuits and Tunnels" chapter in the Cisco ONS 15454 Reference Manual for more information.
Complete the
Step 1
VT tunnel. If you are already logged in, continue with
If you want to assign a name to the tunnel source and destination ports before you create the circuit,
Step 2
complete the
From the View menu, choose Go to Network View.
Step 3
Click the Circuits tab, then click Create.
Step 4
In the Circuit Creation dialog box, choose VT Tunnel from the Circuit Type list.
Step 5
Step 6 Click Next.
Step 7 Define the circuit attributes
•
•
•
•
August 2005
This procedure creates an automatically routed VT tunnel from source to
destination nodes.
None
NTP-A127 Verify Network Turn Up, page 6-4
As needed
Onsite or remote
Provisioning or higher
"DLP-A60 Log into CTC" task on page 17-66
"DLP-A314 Assign a Name to a Port" task on page
(Figure
Name—Assign a name to the VT tunnel. The name can be alphanumeric and up to 48 characters
(including spaces). Circuit names should be 44 characters or less if you want the ability to create
monitor circuits. If you leave the field blank, CTC assigns a default name to the tunnel.
Size—Unavailable for VT tunnels.
Bidirectional—Unavailable for VT tunnels.
State—Choose the administrative state to apply to all of the cross-connects in the VT tunnel:
IS—Puts the circuit cross-connects in the IS-NR service state.
–
OOS,DSBLD—Puts the circuit cross-connects in the OOS-MA,DSBLD service state. Traffic is
–
not passed on the circuit.
IS,AINS—Puts the circuit cross-connects in the OOS-AU,AINS service state and suppresses
–
alarms and conditions. When the connections receive a valid signal, the service state
automatically changes to IS-NR.
NTP-A133 Create an Automatically Routed VT Tunnel
at the node where you want to create the
Step 2.
6-7):
Cisco ONS 15454 Procedure Guide, R5.0
20-8. If not, continue with Step 3.
6-29