6-17
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 6 Circuits and Tunnels
Cross-Connect Card Capacities
If you create VT1.5 circuits on nodes in UPSR or 1+1 protection, an additional STS is used for the
protect path at the source and drop nodes.
shows a VT1.5 circuit at a UPSR source node.
When the circuit is completed:
•
Three of the 24 STSs available for VT1.5 mapping on the XTC card are used (one input and two
outputs, one output for the working path and one output for the protect path).
•
21 STSs are available for VT1.5 circuits.
Figure 6-11 Example #3: VT1.5 circuit in a UPSR or 1+1 protection scheme
shows a second VT1.5 circuit that was created using STS-2. When the second VT1.5 circuit
is created:
•
Three more VT1.5-mapped STSs are used.
•
18 STSs are available for VT1.5 circuits.
STS Matrix
Working
Protect
XTC Matrices
VT1.5 circuit #1
DS-1
Drop
3 STSs total used
21 STSs available
STS
VT1.5
OC-12
OC-12
VT1.5 Matrix
Source
71759
Содержание ONS 15327
Страница 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Страница 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Страница 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Страница 82: ...1 32 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 1 Hardware Installation Hardware Specifications ...
Страница 166: ...4 22 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 4 IP Networking ONS 15327 Routing Table ...
Страница 254: ...7 22 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 7 Card Provisioning Using Virtual Wires ...
Страница 408: ...13 26 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 13 Card Reference E10 100 4 Card ...
Страница 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...