20-77
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 20 DLPs D300 to D399
DLP- D370 View Circuit Information
•
Type—Circuit types are: HOP (high-order path circuit), LOP (low-order path circuit), VCT (VC
low-order tunnel), VCA (VC low-order aggregation point), OCHNC (DWDM optical channel
network connection), HOP_v (VCAT high-order circuit), and LOP_v (VCAT low-order circuit).
•
Size—Circuit size. High-order circuit sizes are VC4, VC4-2c, VC4-3c, VC4-4c, VC4-8c, VC4-12c,
VC4-16c, and VC4-64c. Low-order circuits are VC11, VC12, and VC3. Optical channel network
connection (OCHNC) sizes are Equipped not specific, Multi-rate, 2.5 Gbps No FEC (forward error
correction), 2.5 Gbps FEC, 10 Gbps No FEC, and 10 Gbps FEC. High-order VCAT circuits are
VC4-
n
v and VC4-4c-
n
v and low-order VCAT circuits are VC3-
n
v, where
n
is the number of
members.
•
OCHNC Wlen—(DWDM only) Refer to the
Cisco ONS 15454 DWDM Procedure Guide
for further
information.
•
Direction—The circuit direction, either two-way or one-way.
•
OCHNC Dir—For OCHNCs, the direction of the optical channel network connection, either East to
West or West to East. Refer to the
Cisco ONS 15454 DWDM Procedure Guide
for further
information.
•
Protection—The type of circuit protection. See
for a list of protection types.
Table 20-31
Circuit Protection Types
Protection Type
Description
1+1
The circuit is protected by a 1+1 protection group.
2F MS-SPRing
The circuit is protected by a two-fiber MS-SPRing.
4F MS-SPRing
The circuit is protected by a four-fiber MS-SPRing.
2F-PCA
The circuit is routed on a protection channel access (PCA) path on a two-fiber
MS-SPRing; PCA circuits are unprotected.
4F-PCA
The circuit is routed on a PCA path on a four-fiber MS-SPRing; PCA circuits are
unprotected.
MS-SPRing
The circuit is protected by both a two-fiber and a four-fiber MS-SPRing.
N/A
A circuit with connections on the same node is not protected.
Protected
The circuit is protected by diverse SDH topologies, for example, an MS-SPRing and
an SNCP, or an SNCP and a 1+1 protection group.
PCA
The circuit is routed on a PCA path on both two-fiber and four-fiber MS-SPRings;
PCA circuits are unprotected.
SNCP
The circuit is protected by an SNCP.
SNCP-DRI
The circuit is protected by an SNCP DRI.
SPLITTER
The circuit is protected by the protect transponder (TXPP_MR_2.5G) splitter
protection.
Unknown
A circuit has a source and destination on different nodes and communication is
down between the nodes. This protection type appears if not all circuit components
are known.
Unprot (black)
A circuit with a source and destination on different nodes is not protected.
Unprot (red)
A circuit created as a fully protected circuit is no longer protected due to a system
change, such as removal of a MS-SPRing or 1+1 protection group.
Y-Cable
The circuit is protected by a transponder or muxponder card Y-cable protection
group.
Содержание ONS 15454 SDH
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Страница 62: ...xxii Cisco ONS 15454 SDH Procedure Guide R7 0 78 17194 01 About this Guide ...
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Страница 66: ...xxvi Cisco ONS 15454 SDH Procedure Guide R7 0 78 17194 01 About this Guide ...
Страница 414: ...16 4 Cisco ONS 15454 SDH Procedure Guide R7 0 78 17194 01 Chapter 16 Power Down the Node NTP D114 Power Down the Node ...
Страница 832: ...A 14 Cisco ONS 15454 SDH Procedure Guide R7 0 78 17194 01 Appendix A CTC Information and Shortcuts Equipment Inventory ...
Страница 860: ...Index IN 28 Cisco ONS 15454 SDH Procedure Guide R6 0 78 17194 01 ...