Vcat Circuit Size - Cisco ONS 15454 Reference Manual

Chapter 11 Circuits and Tunnels
circuit. For ML-Series cards, SW-LCAS allows circuit pairing over two-fiber BLSRs. With circuit
pairing, a VCAT circuit is set up between two ML-Series cards: one is a protected circuit (line
protection) and the other is a PCA circuit. For four-fiber BLSRs, member protection cannot be mixed.
You select SW-LCAS during VCAT circuit creation. The FC_MR-4 (line rate mode) does not support
SW-LCAS.
In addition, you can create non-LCAS VCAT circuits, which do not use LCAS or SW-LCAS. While
LCAS and SW-LCAS member cross-connects can be in different service states, all In Group non-LCAS
members must have cross-connects in the same service state. A non-LCAS circuit can mix Out of Group
and In Group members, as long as the In Group members are in the same service state. Non-LCAS
members do not support the OOS-MA,OOG service state; to put a non-LCAS member in the Out
of Group VCAT state, use the OOS-MA,DSBLD administrative state.
Protection switching for LCAS, SW-LCAS, and non-LCAS VCAT circuits might exceed 60ms. Traffic
Note
loss for VT VCAT circuits is approximately two times more than an STS VCAT circuit. You can
minimize traffic loss by reducing path differential delay.

11.17.4 VCAT Circuit Size

Table 11-16
Table 11-16
Card
CE-100T-8
CE-1000-4
FC_MR-4 (line rate mode)
FC_MR-4 (enhanced mode)
ML-Series
1. A VCAT circuit with a CE-Series card as a source or destination and an ML-Series card as a source or
Use the Members tab in the Edit Circuit window to add or delete members from a VCAT circuit. The
capability to add or delete members depends on the card and whether the VCAT circuit is LCAS,
SW-LCAS, or non-LCAS.
OL-9217-01
lists supported VCAT circuit rates and number of members for each card.
ONS 15454 Card VCAT Circuit Rates and Members
destination can have only two members.
Circuit Rate Number of Members
VT1.5 1–64
STS-1 1–3
STS-1 1–21
STS-3 1–7
STS-1 24 (1 Gbps port)
48 (2 Gbps port)
STS-3c 8 (1 Gbps port)
16 (2 Gbps port)
STS-1 1–24 (1 Gbps port)
1–48 (2 Gbps port)
STS-3c 1–8 (1 Gbps port)
1–16 (2 Gbps port)
STS-1, STS-3c, 2
STS-12c
Cisco ONS 15454 Reference Manual, R7.0.1
11.17 11.17.4 VCAT Circuit Size
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