Open-Ended Vcat Protection; Protection Options For Open-Ended Vcat Circuits - Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Reference Manual

Chapter 11 Circuits and Tunnels
Figure 11-16 Open-Ended VCAT
VCAT-Source
Source
CTC Managed
Network
Open-ended VCAT Circuit
Open-ended VCAT circuits can originate or terminate on any pair of OC-N ports and you can route
open-ended VCAT circuits using any of the cards and ports supported by VCAT. The CTC circuit
creation wizard provides an additional check box in the VCAT attributes pane to enable Open-VCAT
circuit creation. Enabling the check box differentiates open-ended VCAT from regular VCAT Circuits.
The routing preferences for an open-ended VCAT circuit must be specified in the initial stages of circuit
provisioning. For example, if the circuit is independent fiber routing, then multiple OC-N ports can be
involved. Alternatively, the source of an open-VCAT circuit should always be a card capable of
participating in a VCG. This allows CTC to determine which routing preferences are permissible.
Auto ranging of 12 STS1 circuits is supported.

11.18.5.1 Open-Ended VCAT Protection

Table 11-19
have different routing preferences.
Table 11-19
Routing Preferences
Common fiber
78-18106-01
Destination
SONET/SDH Port
Destination
SONET/SDH Port
End-to-end VCAT Circuit
summarizes the protection options for open-ended VCAT circuits. Note that members can

Protection options for Open-Ended VCAT Circuits

Routing Mode
Manual/Auto
11.18.5 Open-Ended VCAT
VCAT-Destination
Non-CTC Managed
Network
Protection Options
• Fully protected (Line only)
Unprotected
•
PCA
•
Cisco ONS 15454 Reference Manual, R8.5
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