6-21
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 6 Circuits and Tunnels
Creating DCC Tunnels
shows the DCC tunnels that you can create.
shows a DCC tunnel example. Third-party equipment is connected to OC-3 cards at Node
1/Slot 3/Port 1 and Node 3/Slot 3/Port 1. Each ONS 15327 node is connected by OC-48 trunk cards. In
the example, three tunnel connections are created, one at Node 1 (OC-3 to OC-48), one at Node 2 (OC-48
to OC-48), and one at Node 3 (OC-48 to OC-3).
Figure 6-15 A DCC tunnel
When you create DCC tunnels, keep the following guidelines in mind:
•
Each ONS 15327 can have up to 32 DCC tunnel connections.
•
Each ONS 15327 can have up to 10 SDCC terminations.
•
An SDCC that is terminated cannot be used as a DCC tunnel end-point.
•
An SDCC that is used as an DCC tunnel end-point cannot be terminated.
•
All DCC tunnel connections are bidirectional.
Table 6-4
DCC Tunnels
DCC
SONET
Layer
SONET
Bytes
OC-3
(all ports)
OC-12, OC-48
SDCC
Section
D1 - D3
Yes
Yes
Tunnel 1
Line
D4 - D6
Yes
Yes
Tunnel 2
Line
D7 - D9
Yes
Yes
Tunnel 3
Line
D10 - D12
Yes
Yes
Third party
equipment
Link 1
From (A)
Slot3 (OC3)
port 1, SDCC
To (B)
Slot4 (OC48)
port 1, Tunnel 1
Node 1
Third party
equipment
Link 2
From (A)
Slot2 (OC48)
port 1, Tunnel 1
To (B)
Slot4 (OC48)
port 1, Tunnel 1
Node 2
Link 3
From (A)
Slot2 (OC48)
port 1, Tunnel 1
To (B)
Slot3 (OC3)
port 1, SDCC
Node 3
71761
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 ...