Cisco ONS 15310-MA SDH Procedure Manual page 192

Before You Begin
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Apply to drop ports—Check this check box to apply the IS administrative state to the circuit source
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and destination ports. CTC applies the administrative state to the ports only if the circuit bandwidth
is the same as the port bandwidth or, if the port bandwidth is larger than the circuit, the circuit is the
first circuit to use the port. If not, a Warning dialog box shows the ports where the administrative
state could not be applied. If the check box is unchecked, CTC does not change the service state of
the source and destination ports.
Symmetric—Checked is the default. You cannot change it.
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Member size—Choose the member size. For information about the member size supported for each
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card, refer to the "Circuits and Tunnels" chapter in the Cisco ONS 15310-MA SDH Reference
Manual.
Num. of members—Choose the number of members from the drop-down list. For information about
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the number of members supported for each card, refer to the "Circuits and Tunnels" chapter in the
Cisco ONS 15310-MA SDH Reference Manual.
Mode—Choose the protection mode for the CCAT/VCAT circuit:
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Note
Click Next.
Step 8
Complete the
Step 9
VCAT circuit that you are creating.
In the Circuit Routing Preferences area, uncheck Route Automatically.
Step 10
Choose one of the following routing types:
Step 11
Common Routing—Routes the members on the same fiber.
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Split Routing—Allows the individual members to be routed on different fibers or each member to
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have different routing constraints. Split routing is required when creating circuits over a path
protection configuration.
Cisco ONS 15310-MA SDH Procedure Guide, Release 9.1 and Release 9.2
5-56
OOS,OOG—(LCAS only) Puts VCAT member cross-connects in the Out-of-Service and
Management, Out-of-Group (OOS-MA,OOG) service state. This administrative state is used to
put a member circuit out of the group and to stop sending traffic. OOS-MA,OOG applies only
to the cross-connects on an end node where VCAT resides. The cross-connects on intermediate
nodes are in the OOS-MA,MT service state.
None—Provides no protection. A failure on one member causes the entire VCAT circuit to fail.
For CE-MR-10 card, you can add or delete members after creating a VCAT circuit with no
protection. During the time it takes to add or delete members (from seconds to minutes), the
entire VCAT circuit will be unable to carry traffic.
SW-LCAS—Allows the CCAT/VCAT circuit to adapt to member failures and keep traffic
flowing after failures at a reduced bandwidth. SW-LCAS provides interoperability with the
ONS 15454 ML-Series cards. Sw-LCAS uses legacy SONET failure indicators like AIS-P and
RDI-P to detect member failure. You cannot add or delete members from a CCAT/VCAT circuit
with Sw-LCAS protection.
LCAS—Sets the CCAT/VCAT circuit to use LCAS. With LCAS, you can add or delete members
without interrupting the operation of noninvolved members, and if a member fails, LCAS
temporarily removes the failed member from the VCAT circuit. The remaining members carry
the traffic until the failure clears.
For CE-MR-10 card, before you create a CCAT/VCAT circuit with LCAS protection mode,
it is recommended that you put all members of the CCAT/VCAT circuit being created in
OOS-OOG service state and later move them to IS state.
"DLP-H65 Provision a VCAT Circuit Source and Destination" task on page 16-82
Chapter 5 Create Circuits and VC Low-order Path Tunnels
for the
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