Cisco ONS 15454 SDH Manual page 28

11.16.4 VCAT Circuit Size
autonomously remove members that have defects in the H4/Z7 byte. SW-LCAS is only available for
legacy SONET defects such as AIS-P, LOP-P, etc. SW-LCAS is optional. You can select SW-LCAS
during VCAT circuit creation. The FC_MR-4 card in line rate mode does not support SW-LCAS.
SW-LCAS allows circuit pairing for ML-Series cards over two-fiber MS-SPRing. 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 PCA. For a four-fiber MS-SPRing, member protection cannot be mixed.
In addition, you can create non-LCAS VCAT circuits, which do not use SW-LCAS. While 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 if the In Group members are in the same service state. Non-LCAS members do not support the
Locked-enabled,outOfGroup service state; to put a non-LCAS member in the Out of Group VCAT state,
use Locked-enabled,disabled.
Protection switching for LCAS, SW-LCAS, and non-LCAS VCAT circuits might exceed 60ms.
Note
11.16.4 VCAT Circuit Size
Table 11-13
Table 11-13
Card
CE-100T-8
CE-1000-4
CE-MR-10
FC_MR-4 (Line rate mode)
FC_MR-4 (Enhanced mode)
ML-Series
ML-MR-10
1. A VCAT circuit with a CE-Series card as a source or destination and an ML-Series card as a
2. The maximum number of VCAT circuit members available for SNCP circuits are 126.
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.
Cisco ONS 15454 SDH Reference Manual, R8.5
11-28
lists supported circuit rates and number of members for each card.
ONS 15454 SDH Card VCAT Circuit Rates and Members
source or destination can have only two members.
Circuit Rate Number of Members
VC12 1–64
VC3 1–3
VC4 1–7
VC3 1-21
VC4 1-7
VC12 1-63
VC4 8 (1-Gbps port)
16 (2-Gbps port)
VC4 1–8 (1-Gbps port)
1–16 (2-Gbps port)
VC3, VC4, VC4-4c 2
VC3 1-192
VC4 1-63
VC12 1-63
Chapter 11 Circuits and Tunnels
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