5-23
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 5 SONET Topologies
Unidirectional Path Switched Rings
Figure 5-19 Layout of Node ID 0 in the OC-3 UPSR example (Figure 5-15)
example, Nodes IDs 1 - 3 each contain two DS1-14 cards and two OC3
4 IR 1310 cards. Eight free slots exist. They can be provisioned with other cards or left empty.
shows the shelf assembly setup for this configuration sample.
Figure 5-20 Layout of Node IDs 1 – 3 in the OC-3 UPSR example (Figure 5-15)
5.3.2 Setting Up a UPSR
To set up a UPSR, you perform four basic procedures:
•
Install the UPSR trunk cards. Use the
“Install the UPSR Trunk Cards” procedure on page 5-24
•
Create the DCC terminations. Use the
“Configure the UPSR DCC Terminations” procedure on
•
Configure the timing. Use the
“Set Up ONS 15327 Timing” procedure on page 3-13
.
•
Enable the ports. Use the
“Enable the UPSR Ports” procedure on page 5-25
.
After you enable the ports, you set up the UPSR circuits. UPSR signal thresholds—the levels that
determine when the UPSR path is switched—are set at the circuit level. To create UPSR circuits, see the
“Circuits Overview” section on page 6-1
.
Fan
Tray
Slot
OC3 IR 1310
Free Slot
Free Slot
Free Slot
XTC-28-3
XTC-28-3
MIC B
MIC A
71747
4
3
2
1
5
6
7
8
Fan
Tray
Slot
OC3 IR 1310
OC3 IR 1310
Free Slot
Free Slot
XTC-28-3
XTC-28-3
MIC B
MIC A
71748
4
3
2
1
5
6
7
8
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 ...