Ntp- A265 Create A Manually Routed Vcat Circuit - Cisco ONS 15454 Series Procedure Manual

Chapter 6 Create Circuits and VT Tunnels
Create cross-connects only (TL1-like)—Check this box if you want to create one or more
•
cross-connects to complete a signal path for TL1-generated circuits.
State—Choose IS.
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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 must
be 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
card, refer to the "Circuits and Tunnels" chapter in the Cisco ONS 15454 Reference Manual.
• Num. of members—Choose the number of members. For information about the number of members
supported for each card, refer to the "Circuits and Tunnels" chapter in the Cisco ONS 15454
Reference Manual.
Mode—Choose the protection mode for the VCAT circuit:
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Note
Click Next.
Step 7
Complete the
Step 8
VCAT circuit you are creating.
In the Circuit Routing Preferences area
Step 9
Step 10 If the VCAT circuit has a source or destination on a CE-100T-8 card, choose one of the following routing
types.
• Common Routing—Routes the members on the same fiber.
• Split Routing—Allows the individual members to be routed on different fibers or each member to
have different routing constraints. Split routing is required when creating circuits over a path
protection.
If the VCAT circuit does not have a source or destination on a CE-100T-8 card, common routing is
automatically selected and you cannot change it.
August 2005
None—Provides no protection. A failure on one member causes the entire VCAT circuit to fail.
For CE-100T-8 cards, 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. For all other cards, you cannot add or delete
members if the protection mode is None.
Sw-LCAS—(Software - Link Capacity Adjustment Scheme [LCAS]) Allows the VCAT circuit
to adapt to member failures and keep traffic flowing after failures at a reduced bandwidth.
Sw-LCAS uses legacy SONET failure indicators like AIS-P and RDI-P to detect member
failure.
LCAS—Sets the VCAT circuit to use Link Capacity Adjustment Scheme (LCAS). With LCAS,
you can add or delete members without interrupting the operation of non-involved 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.
Cisco recommends using LCAS for CE-T100-8 cards that do not need to interoperate with
the ML-Series cards.
"DLP-A324 Provision a VCAT Circuit Source and Destination" task on page 20-14
NTP-A265 Create a Manually Routed VCAT Circuit
(Figure 6-18 on page 6-88), uncheck Route Automatically.
Cisco ONS 15454 Procedure Guide, R5.0
for the
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