user manual
Table Of Contents
- Cisco ONS 15454 SDH Reference Manual
- Contents
- About this Guide
- Shelf and FMEC Hardware
- Common Control Cards
- Electrical Cards
- Optical Cards
- Ethernet Cards
- Storage Access Networking Cards
- Card Protection
- Cisco Transport Controller Operation
- Security and Timing
- Circuits and Tunnels
- SDH Topologies and Upgrades
- CTC Network Connectivity
- Alarm Monitoring and Management
- Ethernet Operation
- Hardware Specifications
- A.1 Shelf Specifications
- A.2 SFP Specifications
- A.3 General Card Specifications
- A.4 Common Control Card Specifications
- A.5 Electrical Card and FMEC Specifications
- A.5.1 E1-N-14 Card Specifications
- A.5.2 E1-42 Card Specifications
- A.5.3 E3-12 Card Specifications
- A.5.4 DS3i-N-12 Card Specifications
- A.5.5 STM1E-12 Card Specifications
- A.5.6 BLANK Card
- A.5.7 FMEC-E1 Specifications
- A.5.8 FMEC-DS1/E1 Card Specifications
- A.5.9 FMEC E1-120NP Card Specifications
- A.5.10 FMEC E1-120PROA Card Specifications
- A.5.11 FMEC E1-120PROB Card Specifications
- A.5.12 E1-75/120 Impedance Conversion Panel Specifications
- A.5.13 FMEC-E3/DS3 Card Specifications
- A.5.14 FMEC STM1E 1:1 Card Specifications
- A.5.15 FMEC-BLANK Card Specifications
- A.5.16 MIC-A/P Card Specifications
- A.5.17 MIC-C/T/P Card Specifications
- A.6 Optical Card Specifications
- A.6.1 OC3 IR 4/STM1 SH 1310 Card Specifications
- A.6.2 OC3 IR/STM1 SH 1310-8 Card Specifications
- A.6.3 OC12 IR/STM4 SH 1310 Card Specifications
- A.6.4 OC12 LR/STM4 LH 1310 Card Specifications
- A.6.5 OC12 LR/STM4 LH 1550 Card Specifications
- A.6.6 OC12 IR/STM4 SH 1310-4 Card Specifications
- A.6.7 OC48 IR/STM16 SH AS 1310 Card Specifications
- A.6.8 OC48 LR/STM16 LH AS 1550 Card Specifications
- A.6.9 OC48 ELR/STM16 EH 100 GHz Card Specifications
- A.6.10 OC192 SR/STM64 IO 1310 Card Specifications
- A.6.11 OC192 IR/STM64 SH 1550 Card Specifications
- A.6.12 OC192 LR/STM64 LH 1550 Card Specifications
- A.6.13 OC192 LR/STM64 LH ITU 15xx.xx Card Specifications
- A.7 Ethernet Card Specifications
- A.8 Storage Access Networking Card Specifications
- Administrative and Service States
- Network Element Defaults
- Index

CHAPTER
11-1
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
11
SDH Topologies and Upgrades
This chapter explains Cisco ONS 15454 SDH topologies and upgrades. To provision topologies, refer to
the Cisco ONS 15454 SDH Procedure Guide.
Chapter topics include:
• 11.1 SDH Rings and TCC2/TCC2P Cards, page 11-1
• 11.2 Multiplex Section-Shared Protection Rings, page 11-2
• 11.3 Subnetwork Connection Protection, page 11-13
• 11.4 Dual Ring Interconnect, page 11-18
• 11.5 Subtending Rings, page 11-26
• 11.6 Linear ADM Configurations, page 11-28
• 11.7 Extended SNCP Mesh Networks, page 11-29
• 11.8 Four Node Configurations, page 11-31
• 11.9 STM-N Speed Upgrades, page 11-31
11.1 SDH Rings and TCC2/TCC2P Cards
Table 11-1 shows the SDH rings that can be created on each ONS 15454 SDH node using redundant
TCC2/TCC2P cards.
Table 11-1 ONS 15454 SDH Rings with Redundant TCC2/TCC2P Cards
Ring Type Maximum Rings per Node
MS-SPRings
1
1. MS-SPRing = multiplex section-shared protection ring
5
2-Fiber MS-SPRings 5
4-Fiber MS-SPRings 1
SNCP with SDCC 34
2
3
2. Total SDCC usage must be equal to or less than 84 SDCCs.
3. See the “11.3 Subnetwork Connection Protection” section on page 11-13.
SNCP with LDCC 14
4
5
4. Total LDCC usage must be equal to or less than 28 LDCCs.
SNCP with LDCC and SDCC 26
6