Cisco ONS 15530 Planning Guide Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.
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C O N T E N T S Preface ix Purpose Audience ix ix Organization x Related Documentation x Obtaining Documentation xi Cisco.
Contents Protocol Monitoring 1-20 2.
Contents Protected Point-to-Point Topology 2-18 Ring Topologies 2-19 Hubbed Ring 2-19 Meshed Ring 2-20 Path Switching in Point-to-Point and Ring Topologies CHAPTER 3 Shelf Configuration Rules 3-1 Shelf Rules for OADM Modules 3-1 Cabling OADM Modules 3-1 Rules for Protected Configurations Shelf Rules for PSMs 3-2 3-2 Shelf Rules for 2.
Contents Link Loss (Attenuation) 4-10 ORL 4-11 PMD 4-11 Chromatic Dispersion 4-11 Fiber Requirements for 10-Gbps Transmission CHAPTER 5 Amplified Network Planning 4-11 5-1 Optical Amplification Overview 5-1 Erbium-Doped Fiber Amplifiers 5-1 About Variable Optical Attenuation 5-2 VOA Modules 5-2 PB-OE Modules 5-3 WB-VOA Modules 5-5 Amplified Network Planning Considerations Optical Power Budget 5-6 OSNR 5-6 Chromatic Dispersion 5-7 5-6 Amplified Network Planning Guidelines 5-7 Receive Power Levels
Contents Cisco ONS 15530 Topologies 6-25 Point-to-Point Topologies 6-26 Unprotected Point-to-Point Topology 6-26 Protected Point-to-Point Topology 6-26 Meshed Ring Topologies 6-27 Unprotected Meshed Ring Topology 6-28 Protected Meshed Ring Topology 6-29 Meshed Ring Topology Using Multiple Cisco ONS 15530 Shelf Nodes Protected Meshed Ring Topology 6-31 Cisco ONS 15530 and Cisco ONS 15540 Mixed Topologies 6-32 Cisco ONS 15530 and Cisco ONS 15540 Collocated Topologies APPENDIX A IBM Storage Protocol Supp
Contents Cisco ONS 15530 Planning Guide viii OL-7708-01
Preface This preface describes the purpose, intended audience, organization, and conventions for the Cisco ONS 15530 Planning Guide. The information contained in this document pertains to the entire range of hardware components and software features supported on the Cisco ONS 15530 platform. As new hardware and Cisco IOS software releases are made available for the Cisco ONS 15530 platform, verification of compatibility becomes extremely important.
Preface Organization Organization The chapters of this guide are as follows: Chapter Title Description Chapter 1 System Overview Describes the Cisco ONS 15530 chassis, components, and system architecture Chapter 2 Protection Schemes and Network Topologies Describes the supported network topologies and fault protection schemes Chapter 3 Shelf Configuration Rules Provides the rules for physical configuration of the Cisco ONS 15530 Chapter 4 Optical Loss Budgets Provides metrics for calculating
Preface Obtaining Documentation Obtaining Documentation Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several ways to obtain technical assistance and other technical resources. These sections explain how to obtain technical information from Cisco Systems. Cisco.com You can access the most current Cisco documentation at this URL: http://www.cisco.com/univercd/home/home.htm You can access the Cisco website at this URL: http://www.cisco.
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Preface Obtaining Technical Assistance In an emergency, you can also reach PSIRT by telephone: • 1 877 228-7302 • 1 408 525-6532 Obtaining Technical Assistance For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, Cisco Technical Support provides 24-hour-a-day, award-winning technical assistance. The Cisco Technical Support Website on Cisco.com features extensive online support resources.
Preface Obtaining Additional Publications and Information To open a service request by telephone, use one of the following numbers: Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227) EMEA: +32 2 704 55 55 USA: 1 800 553-2447 For a complete list of Cisco TAC contacts, go to this URL: http://www.cisco.com/techsupport/contacts Definitions of Service Request Severity To ensure that all service requests are reported in a standard format, Cisco has established severity definitions.
Preface Obtaining Additional Publications and Information • iQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies learn how they can use technology to increase revenue, streamline their business, and expand services. The publication identifies the challenges facing these companies and the technologies to help solve them, using real-world case studies and business strategies to help readers make sound technology investment decisions.
Preface Obtaining Additional Publications and Information Cisco ONS 15530 Planning Guide xvi OL-7708-01
C H A P T E R 1 System Overview The Cisco ONS 15530 is an optical transport platform that employs DWDM (dense wavelength division multiplexing) technology. With the Cisco ONS 15530, users can take advantage of the availability of dark fiber to build a common infrastructure that supports data networking and storage networking.
Chapter 1 System Overview Chassis Description Figure 1-1 Cisco ONS 15530 Shelf Layout US 6 T X R X 7 T X R X T X R X X S FD BP 0M 10 K LIN X S FD BP 0M K LIN T X R X 0 T X R X 1 T X R X 2 T X R X 3 0 T X R X 1 T X R X E A S T 2 T X R X 3 5 6 T X R X 4 T X R X 5 T X R X 6 T X R X 4 T X R X 5 T X R X W E S T T X R X T X FAIL 6 T X R X 7 T X R X 7 8 T X R X 8 T X R X 8 9 T X R X 9 9 79137 15530-LCMB-0200 15530-LCMB-0200 15530-LCMB-0200 15530-CPU
Chapter 1 System Overview System Functional Overview System Functional Overview The Cisco ONS 15530 connects to client equipment, to the DWDM trunk (transport network), to other Cisco ONS 15530 shelves, and to other DWDM equipment, such as the Cisco ONS 15540 ESP and Cisco ONS 15540 ESPx. Simply described, the Cisco ONS 15530 takes a client signal and converts it to an ITU-T G.
Chapter 1 System Overview System Components Figure 1-3 Simplified Data Flow Architecture For an ESCON Aggregation Card and a 10-Gbps ITU Trunk Card Encapsulation engine Transceiver ITU optics Transport network Front panel cross connection E E Client O (ITU wavelength) 10-Gps ITU trunk card Switch fabrics OADM 85514 ESCON card System Components The Cisco ONS 15530 has a modular architecture that provides the flexibility to expand the system as the network grows.
Chapter 1 System Overview System Components Figure 1-4 shows the architecture of the transponder line card. Figure 1-4 Transponder Line Card Architecture ITU laser OADM Client equipment O-E O-E Performance monitor Optical transceiver To SRC 79290 LRC A safety protocol, LSC (laser safety control), shuts the transmit laser down on the trunk side when a fiber break or removed connector is detected. The transponder line cards are hot pluggable, permitting in-service upgrades and replacement.
Chapter 1 System Overview System Components Table 1-1 Common Protocol Encapsulations Supported on SM Transponder Line Cards and MM Transponder Line Cards Wavelength (nm) Transponder Type Protocol 1310 850 SM MM Monitoring Client Signal Encapsulation Fiber Type Gigabit Ethernet (1250 Mbps) SM 9 or 10/125 µm Yes No Yes No Yes MM 50/125 µm Yes No Yes No Yes MM 62.5/125 µm Yes No No No — SM 9 or 10/125 µm Yes No Yes Yes No MM 50/125 µm Yes No Yes Yes No MM 62.
Chapter 1 System Overview System Components Table 1-2 shows the IBM storage protocols on the SM transponder line cards and MM transponders modules. Table 1-2 IBM Storage Protocols Supported on Single-Mode and Multimode Transponders Wavelength (nm) Transponder Type Protocol 1310 850 SM MM Monitoring Client Signal Encapsulation Fiber Type ESCON (200 Mbps) SM 9 or 10/125 µm Yes No Yes Yes Yes MM 50/125 µm Yes No No Yes Yes MM 62.
Chapter 1 System Overview System Components Table 1-3 Other Client Signal Encapsulations Supported on Single-Mode and Multimode Transponders Wavelength (nm) Transponder Type Protocol 1310 850 SM MM Monitoring Client Signal Encapsulation Fiber Type DS3 (45 Mbps) SM 9 or 10/125 µm Yes No Yes Yes No MM 50/125 µm Yes No Yes Yes No MM 62.5/125 µm Yes No No Yes No SM 9 or 10/125 µm Yes No Yes Yes No MM 50/125 µm Yes No Yes Yes No MM 62.
Chapter 1 System Overview System Components For GE, FC, and FICON traffic, the Cisco ONS 15530 monitors the following conditions: • CVRD (code violation running disparity) error counts • Loss of Sync • Loss of Lock • Loss of Light For SONET errors, the Cisco ONS 15530 monitors the SONET section overhead only, not the SONET line overhead. Specifically, the system monitors the B1 byte and the framing bytes.
Chapter 1 System Overview System Components Figure 1-5 ESCON Aggregation Card Architecture ESCON transceiver 0 ESCON transceiver 1 Switch fabric side ESCON transceiver 2 PHY ESCON transceiver 3 Client side ESCON transceiver 4 ESCON transceiver 5 ESCON encapsulation engine ESCON transceiver 6 ESCON transceiver 7 ESCON transceiver 8 79295 ESCON transceiver 9 The ESCON aggregation card uses pluggable transceivers with MT-RJ connectors for the client signals.
Chapter 1 System Overview System Components 4-Port 1-Gbps/2-Gbps FC Aggregation Cards The Cisco ONS 15530 supports a line card specifically for 1-Gbps and 2-Gbps FC (Fibre Channel), FICON (Fibre Connection), and ISC (InterSystem Channel) links traffic. The 4-port 1-Gbps/2-Gbps FC aggregation card has the following features: • Accepts up to four single-mode or multimode SFP (small form-factor pluggable) optics for client traffic.
Chapter 1 System Overview System Components Figure 1-6 shows the architecture of the 4-port 1-Gbps/2-Gbps FC aggregation card. Figure 1-6 4-Port 1-Gbps/2-Gbps FC Aggregation Card Architecture Front panel Backplane SFP Quad PHY To active switch fabric Quad PHY To standby switch fabric SFP Preprocessor Encapsulation engine SFP 113460 SFP Table 1-5 lists features for the SFP optics supported by the 4-port 1-Gbps/2-Gbps FC aggregation cards.
Chapter 1 System Overview System Components Table 1-5 4-Port 1-Gbps/2-Gbps FC Aggregation Card SFP Optics Features (continued) Part Number Protocols or Clock Rate Range Supported Fiber Type Connector Wavelength Type 15454E-SFP-GEFC-S Fibre Channel (1-Gbps and 2-Gbps) MM 50/125 µm 850 nm MM 62.5/125 µm LC 15454-SFP-GEFC-SX Fibre Channel (1-Gbps and 2-Gbps) MM 50/125 µm 850 nm MM 62.5/125 µm LC 1. FC-0-100-M5-SN-S and FC-0-100-M6-SN-S standards 2.
Chapter 1 System Overview System Components Support for FC Port Types The 4-port 1-Gbps/2-Gbps FC aggregation card supports the following FC port types, with or without the buffer credit distance extension feature enabled: Note • B_port—bridge port • E_port—expansion port • F_port—fabric port • N_port—node port • TE_port—trunking E_port (Cisco MDS 9000 Family systems only) All of the above port topologies, except for TE_port, are point-to-point in the FC specifications.
Chapter 1 System Overview System Components Note The 8-port FC/GE aggregation card supports end-to-end passthrough of the autonegotiation parameters only for hardware versions earlier than 8.0 updated with functional image A.2-30 or later, or hardware version 8.0, or later, updated with functional image B.2-30 or later. For information on updating functional images, refer to the Cisco 15530 Software Upgrade Guide. Note We strongly recommend configuring port pairs as FC only or GE only.
Chapter 1 System Overview System Components Table 1-6 8-Port FC/GE Aggregation Card SFP Optics Features (continued) Fiber Type Connector Wavelength Type 15500-XVRA-11B1 Mid-band variable rate 200 Mbps to 1.25 Gbps SM 9/125 µm 1310 nm LC 15500-XVRA-12B1 High-band variable rate 1.062 Gbps to 2.488 Gbps SM 9/125 µm 1310 nm LC Part Number Protocols or Clock Rate Range Supported 1. 1000BASE-SX 2. FC-0-100-M5-SN-S and FC-0-100-M6-SN-S standards 3. 1000BASE-LX 4.
Chapter 1 System Overview System Components • 5 minute input/output rates • Loss of Sync • Loss of Light For ISC-3 links traffic, the system monitors the following conditions on the 8-port FC/GE aggregation card: • 8B/10B CVRD error counts • Loss of Light Support for FC Port Types The 8-port FC/GE aggregation card supports the following FC port types, with or without the buffer credit distance extension feature enabled: Note • B_port—bridge port • E_port—expansion port • F_port—fabric por
Chapter 1 System Overview System Components Note The 8-port multi-service muxponder does not use the switch fabric, an ITU trunk card, or an 10-Gbps uplink card. The 8-port multi-service muxponder supports the following protocols: • Gigabit Ethernet (1.25 Gbps), copper and optical • Fiber Channel (1.062 Gbps), optical • FICON (1.
Chapter 1 System Overview System Components Figure 1-8 shows the architecture of the 8-port multi-service muxponder. Figure 1-8 8-Port Multi-Service Muxponder Architecture Client side Trunk side Client funcitonal image T1/E1 ASIC STS-48 STS-1 2.5-Gbps ITU trunk signal STS-48 framer STS-48 113952 Client functional image The 8-port multi-service muxponder uses optical single-mode, optical multimode, and copper SFPs for the client signals.
Chapter 1 System Overview System Components Table 1-7 Note 8-port Multi-Service Muxponder SFP Features (continued) Part Number Protocols Supported Fiber Type Connector Wavelength Type 15500-XVRA-12B1 High-band 1.062 Gbps to 2.488 Gbps SM 9/125 µm 1310 nm LC 15500-XVRA-08D1 T1 1.544 Mbps Copper T1 – RJ-45 15500-XVRA-09D1 E1 2.044 Mbps Copper E1 – RJ-45 15500-XVRA-10E1 SDI and DVB-ASI Video Copper Digital Video – Mini SMB Coax 15500-XVRA-11D1 GE 1.25 Gbps, FE 1.
Chapter 1 System Overview System Components Figure 1-9 Nonsplitter 2.5-Gbps ITU Trunk Card Architecture QuadPHY Tx 64B/66B Encoder 2.5-Gbps ITU transceiver Rx 85842 LRC The splitter version of the 2.5-Gbps ITU trunk card has two pairs of optical connectors on the front panel, which connect to the east and west OADM modules, and is designed for splitter protected applications (see Figure 1-10).
Chapter 1 System Overview System Components Figure 1-10 Splitter 2.5-Gbps ITU Trunk Card Architecture QuadPHY Tx 64B/66B Encoder Splitter module West Tx East Tx 2x2 Switch West Rx East Rx 2.5-Gbps ITU transceiver Rx LRC 85843 PIN Diode Controlled by Rx demux FPGA The Cisco ONS 15530 supports up to four 2.5-Gbps ITU trunk cards for a total of four channels. 10-Gbps ITU Trunk Cards The 10-Gbps ITU trunk card sends and receives the ITU grid wavelength signal to and from an OADM module.
Chapter 1 System Overview System Components Figure 1-11 Nonsplitter 10-Gbps ITU Trunk Card Architecture QuadPHY TX QuadPHY Tx mux / Rx demux FPGA 10-Gbps ITU transceiver 64/66 Encoder RX 79297 LRC The splitter version of the 10-Gbps ITU trunk card has two pairs of optical connectors on the front panel, which connect to the east and west OADM modules, and is designed for splitter protected applications (see Figure 1-12).
Chapter 1 System Overview System Components 10-Gbps ITU Tunable Trunk Cards The 10-Gbps ITU tunable trunk card sends and receives the ITU grid wavelength signal to and from an OADM module. This card accepts up to four 2.5-Gbps (3.125-Gbps line rate) electrical signals from the ESCON aggregation cards, 8-port FC/GE aggregation cards, or a 4-port FC aggregation card, and combines them into one 10-Gbps signal, which is converted to the ITU grid wavelength, or channel.
Chapter 1 System Overview System Components Table 1-8 Note Tunable Frequencies and Wavelengths (continued) Channel Frequency (THz) Wavelength (nm) 27 195.3 1535.04 28 195.4 1534.25 29 195.6 1532.68 30 195.7 1531.90 31 195.8 1531.12 32 195.9 1530.33 When designing your network, consider designs with 10-Gbps ITU tunable trunk cards as well as designs with 2.5-Gbps ITU trunk cards.
Chapter 1 System Overview System Components Figure 1-14 Splitter 10-Gbps ITU Tunable Trunk Card Architecture QuadPHY TX West Tx Splitter module East Tx QuadPHY Tx mux / Rx demux FPGA 64/66 Encoder 10-Gbps ITU transceiver RX West Rx 2x2 Switch East Rx PIN Diode 79296 LRC Controlled by Rx demux FPGA The Cisco ONS 15530 supports up to four 10-Gbps ITU tunable trunk cards for a total of 4 channels.
Chapter 1 System Overview System Components Figure 1-15 10-Gbps Uplink Card Architecture QuadPHY TX QuadPHY Tx mux / Rx demux FPGA 64/66 Encoder 10-Gbps 1310nm transceiver RX 79298 LRC The 10-Gbps uplink card has only one pair of optical connectors on the front panel and can be used for unprotected or line card protected applications. For splitter protected configurations, use the 10-Gbps ITU trunk card. The Cisco ONS 15530 supports up to four 10-Gbps uplink cards for a total of four channels.
Chapter 1 System Overview System Components Note A Cisco ONS 15530 system without the OSC and the in-band message channel is not known to other systems in the network and cannot be managed by any NMS. Without the OSC and the in-band message channel, a Cisco ONS 15530 system must be managed individually by separate Ethernet or serial connections.
Chapter 1 System Overview System Components Figure 1-16 OADM Module Architecture Trunk IN Trunk OUT Thru IN Thru OUT OSC IN OSC OUT Demux Ch1 IN Ch1 OUT Trunk IN Ch2 IN Trunk OUT Ch2 OUT Thru IN Ch3 IN Thru OUT OSC IN Ch3 OUT From transponder or ITU trunk card Ch4 IN OSC OUT OADM Ch1 IN Ch4 OUT Logical View Ch1 OUT Trunk IN Ch2 IN Trunk OUT Ch2 OUT Thru IN Ch3 IN Thru OUT Ch3 OUT OSC IN Ch4 IN OSC OUT Ch4 OUT Mux Ch1 IN Ch1 OUT Ch2 IN Ch2 OUT To transponder or ITU trunk ca
Chapter 1 System Overview System Components Table 1-9 OADM Modules and Supported Channel Bands Cisco ONS 15530 Channels OADM Module 1–4 Band A 5–8 Band B 9–12 Band C 13–16 Band D 17–20 Band E 21–24 Band F 25–28 Band G 29–32 Band H OADM Module Configurations In ring configurations, channels that are not supported by a node are passed through that node and sent out on the ring. Figure 1-17 shows an example of how two OADM modules might be cabled in a protected ring configuration.
Chapter 1 System Overview System Components Figure 1-18 PSM Architecture 2x2 Splitter module 85919 Optical monitor CPU Switch Modules The Cisco ONS 15530 includes two CPU switch modules for redundancy.
Chapter 1 System Overview System Components Switch Fabric The Cisco ONS 15530 CPU switch module has a 32-port by 32-port, nonblocking switch fabric, which can carry up to 3.125 Gbps of traffic per port (for data traffic and the remainder for control traffic). The switch fabric connects signals from client side line cards, such as the ESCON aggregation card, to ITU side line cards, such as the 10-Gbps ITU trunk card (see Figure 1-19).
Chapter 1 System Overview Security Features active CPU switch module, the standby CPU switch module immediately takes over and assumes the active role. Once the problem on the faulty card has been resolved, it can be manually restored to the active function. In addition to providing protection against hardware or software failure, the redundant CPU switch module arrangement also permits installing a new Cisco IOS system image without system downtime.
Chapter 1 System Overview System and Network Management The in-band OAM&P messages carry the following types of information: • Internodal management traffic. • APS (Automatic Protection Switching) protocol messages. • Subport identifiers for signal aggregation. • Signal defect indications used by the system to identify line, segment, or path failures in the network topology and to take appropriate recovery responses to such failures.
Chapter 1 System Overview System and Network Management OSC The OSC is an out-of-band method for providing OAM&P functions on a 33rd wavelength. The OSC supports a message channel that functions like the DCC for management and provisioning. Messages transit the network hop-by-hop, and they can be forwarded or routed according to established routing protocols.
Chapter 1 System Overview System and Network Management Table 1-10 Comparison of the In-Band Message Channel, SONET, and OSC (continued) Feature OSC In-Band Message Channel SONET 1 Management channel Per fibre via a 33rd wavelength (channel 0) Per wavelength via a message byte Per wavelength via section DCC Performance monitoring OSC protocol 8B/10B(GE), 64/66B (10-GE), HEC2, frame FCS Section BIP3 1.
C H A P T E R 2 Protection Schemes and Network Topologies This chapter describes how protection is implemented on the Cisco ONS 15530. It also describes the supported network topologies and how protection works in these topologies.
Chapter 2 Protection Schemes and Network Topologies Splitter Based Facility Protection Splitter Based Facility Protection To survive a fiber failure, fiber optic networks are designed with both working and protection fibers. In the event of a fiber cut or other facility failure, working traffic is switched to the protection fiber. The Cisco ONS 15530 supports such facility protection using a splitter scheme (see Figure 2-1) to send the output of the DWDM transmitter on two trunk side interfaces.
Chapter 2 Protection Schemes and Network Topologies Splitter Based Facility Protection A switchover is triggered in hardware by a loss of light on the receive signal. Switchovers for signal degrade or signal failure are configurable in the software. Splitter Protection Considerations When Using Transponder Line Cards The following considerations apply when using splitter protection with transponder line cards: • Because the signal splitter module on splitter transponder line cards introduces 3.
Chapter 2 Protection Schemes and Network Topologies Splitter Based Facility Protection Figure 2-2 Splitter Protection with 8-Port Multi-Service Muxponders OADM modules West LRC OSC LRC East LRC LRC OSC LRC 8-Port multi-service muxponders SRC CPU Redundant CPU switch modules Electrical backplane connection 113953 Optical fiber connection A switchover is triggered in hardware by a loss of light on the receive signal.
Chapter 2 Protection Schemes and Network Topologies Splitter Based Facility Protection 2.5-Gbps ITU Trunk Card With splitter protection, a passive optical splitter module on the 2.5-Gbps ITU line card duplicates the ITU signal. The front panel of each splitter 2.5-Gbps ITU line card has connectors for two fiber pairs for cabling to the two OADM modules. One fiber pair serves as the active connection, while the other pair serves as the standby.
Chapter 2 Protection Schemes and Network Topologies Splitter Based Facility Protection Splitter Protection Considerations When Using 2.5-Gbps ITU Line Cards The following considerations apply when using splitter protection: • Because the signal splitter module on splitter 2.5-Gbps ITU line cards introduces 3.55 dB of loss in the transmit direction, we recommend using nonsplitter line cards for configurations where splitter protection is not required.
Chapter 2 Protection Schemes and Network Topologies Splitter Based Facility Protection Figure 2-4 Splitter Protection with 10-Gbps ITU Tunable and Non tunable Trunk Cards 2.
Chapter 2 Protection Schemes and Network Topologies Y-Cable Based Line Card Protection • The OSC and the in-band message channel play a crucial role in splitter based protection by allowing the protection fiber to be monitored for interruption of service. • Up to four channels can be splitter protected on a single shelf if the OSC is not supported; if the OSC is supported, up to three channels can be splitter protected on a single shelf.
Chapter 2 Protection Schemes and Network Topologies Client Based Line Card Protection detected, and an acceptable standby signal is available, the system switches over to the standby signal. The precise conditions that trigger a switchover based on signal failure or signal degrade are configurable in the alarm threshold software. Note Y-cable protection is not supported for ESCON aggregation cards and for 8-port multi-service muxponders.
Chapter 2 Protection Schemes and Network Topologies Client Based Line Card Protection Transponder Line Cards Figure 2-6 shows the architecture that supports client protection using transponder line cards.
Chapter 2 Protection Schemes and Network Topologies Client Based Line Card Protection Figure 2-7 Client Based Line Card Protection Scheme for ESCON Aggregation Cards and 10-Gbps ITU Trunk Cards 10-port ESCON cards Redundant CPU switch modules LRC 10-Gbps ITU trunk card LRC OADM modules ESCON switch West 10-Gbps ITU transceiver 10-port ESCON cards East LRC LRC 10-Gbps ITU trunk card Active signal SRC Standby switch fabric connection Optical fiber connection 79310 Electrical backplane connect
Chapter 2 Protection Schemes and Network Topologies Client Based Line Card Protection Figure 2-8 Client Based Line Card Protection Scheme for 4-Port 1-Gbps/2-Gbps FC Aggregation Cards and 2.5-Gbps ITU Trunk Cards 4-port FC card Redundant CPU switch modules LRC 2.5-Gbps ITU trunk card LRC OADM modules Client switch West 4-port FC card East LRC LRC 2.
Chapter 2 Protection Schemes and Network Topologies Switch Fabric Based Line Card Protection Figure 2-9 Client Based Line Card Protection Scheme for 8-Port FC/GE Aggregation Cards and 2.5-Gbps ITU Trunk Cards 8-port FC/GE card Redundant CPU switch modules LRC 2.5-Gbps ITU trunk card LRC OADM modules Client switch West 8-port FC/GE card East LRC LRC 2.
Chapter 2 Protection Schemes and Network Topologies Switch Fabric Based Line Card Protection signals through the active switch fabric to two 2.5-Gbps ITU trunk cards or two 10-Gbps ITU tunable or non tunable trunk cards, one in the east direction and one in the west, or two 10-Gbps uplink cards. The aggregation card only receives the 2.5-Gbps signal from the active switch fabric. Figure 2-10 shows switch fabric based protection with a single switch fabrics.
Chapter 2 Protection Schemes and Network Topologies Switch Fabric Based Line Card Protection Figure 2-11 shows switch fabric based protection with redundant switch fabrics. Figure 2-11 Switch Fabric Based Protection Example With Redundant Switch Fabrics 2.
Chapter 2 Protection Schemes and Network Topologies Trunk Fiber Based Protection Trunk Fiber Based Protection The PSM (protection switch module) provides trunk fiber based protection on Cisco ONS 15530 systems configured in point-to-point topologies. This type of protection only provides protection against trunk fiber cuts, not specific channel failure as provided by splitter and line card based schemes.
Chapter 2 Protection Schemes and Network Topologies Supported Topologies • Use PSMs only in point-to-point topologies. • On a multiple shelf node, install the PSM on the shelf connected to the trunk fiber. • Up to four channels on a single shelf can be protected with trunk fiber based protection. Supported Topologies The Cisco ONS 15530 can be used in point-to-point and ring topologies. Point-to-point topologies can be either protected and unprotected point-to-point.
Chapter 2 Protection Schemes and Network Topologies Supported Topologies Protected Point-to-Point Topology Figure 2-14 shows a protected point-to-point topology configured for splitter or line card per channel protection. In either case, there are two trunk side interfaces, west and east, connected by two fiber pairs.
Chapter 2 Protection Schemes and Network Topologies Supported Topologies Ring Topologies In a ring topology, client equipment is attached to three or more Cisco ONS 15530 systems, which are interconnected in a closed loop. Channels can be dropped and added at one or more nodes on a ring. Rings have many common applications, including providing extended access to SANs (storage area networks) and upgrading existing SONET rings.
Chapter 2 Protection Schemes and Network Topologies Supported Topologies Meshed Ring A meshed ring is a physical ring that has the logical characteristics of a mesh. While traffic travels on a physical ring, the logical connections between individual nodes are meshed. An example of this type of configuration, which is sometimes called a logical mesh, is shown in Figure 2-17. Nodes 1 and 2 communicate using band A and nodes 1 and 3 communicate using band B.
Chapter 2 Protection Schemes and Network Topologies Supported Topologies The Cisco ONS 15530 implements path switching using a SONET-compliant APS channel protocol over the OSC (optical supervisory channel) or the in-band management channel on the protection path. Note Bidirectional path switching operates only on Cisco ONS 15530 networks that have the OSC or the in-band management channel. Figure 2-18 shows a protected hubbed ring configuration.
Chapter 2 Protection Schemes and Network Topologies Supported Topologies Figure 2-19 shows the behavior of unidirectional path switching when a loss of signal occurs. For the example network, unidirectional path switching operates as follows: • Node 2 sends the channel signal over both the active and standby paths. • Node 1 receives both signals and selects the signal on the active path. • Node 1 detects a loss of signal light on its active path and switches over to the standby path.
Chapter 2 Protection Schemes and Network Topologies Supported Topologies Figure 2-20 shows the behavior of bidirectional path switching when a loss of signal occurs. For the example network, bidirectional path switching operates as follows: • Node 2 sends the channel signal over both the active and standby paths. • Node 1 receives both signals and selects the signal on the active path. • Node 1 detects a loss of signal light on its active path and switches over to the standby path.
Chapter 2 Protection Schemes and Network Topologies Supported Topologies Cisco ONS 15530 Planning Guide 2-24 OL-7708-01
C H A P T E R 3 Shelf Configuration Rules The design of the Cisco ONS 15530 requires that a set of rules be followed during physical configuration of the shelf. These rules, along with examples, are provided in this chapter. This chapter contains the following major sections: Note • Shelf Rules for OADM Modules, page 3-1 • Shelf Rules for PSMs, page 3-2 • Shelf Rules for 2.
Chapter 3 Shelf Configuration Rules Shelf Rules for PSMs • Connect west to east, never west to west or east to east, between nodes in a ring. • Connect Thru OUT to Thru IN between the OADM modules for ring configurations. For examples of OADM module cabling in a protected ring configuration, see Figure 1-17 on page 1-30. Rules for Protected Configurations The rules for OADM modules in protected configurations are as follows: • You must use two OADM modules that support the same channel band.
Chapter 3 Shelf Configuration Rules Shelf Rules for 10-Gbps ITU Trunk Cards Shelf Rules for 10-Gbps ITU Trunk Cards The rules for 10-Gbps ITU trunk cards are as follows: • The 10-Gbps ITU trunk cards must support channels in the same channel band supported by the OADM module. • Two OADM modules are required when configuring splitter protection.
Chapter 3 Shelf Configuration Rules General Rules for Ring Topologies Cisco ONS 15530 Planning Guide 3-4 OL-7708-01
C H A P T E R 4 Optical Loss Budgets The optical loss budget is an important aspect in designing networks with the Cisco ONS 15530. The optical loss budget is the ultimate limiting factor in distances between nodes in a topology. This chapter contains the following major sections: • About dB and dBm, page 4-1 • Overall Optical Loss Budget, page 4-2 • Optical Loss for Transponder Line Cards, page 4-4 • Optical Loss for 2.
Chapter 4 Optical Loss Budgets Overall Optical Loss Budget Keep in mind that the decibel expresses a ratio of signal powers. This requires a reference point when expressing loss or gain in dB. For example, the statement “there is a 5 dB drop in power over the connection” is meaningful, but the statement “the signal is 5 dB at the connection” is not meaningful. When you use dB you are not expressing a measure of signal strength, but a measure of signal power loss or gain.
Chapter 4 Optical Loss Budgets Overall Optical Loss Budget Calculating Optical Loss Budgets Using the optical loss characteristics for the Cisco ONS 15530 components, you can calculate the optical loss between the transmitting laser on one node and the receiver on another node.
Chapter 4 Optical Loss Budgets Optical Loss for Transponder Line Cards Figure 4-1 Elements of Optical Loss in a Minimal Configuration OADM module add loss Fiber loss Pass through loss (if needed) PSM loss (if needed) OADM module drop loss Tap monitor or attenuator loss (if needed) Line card receive loss Total loss 77671 Line card transmit loss For examples of optical loss budget calculations, see the shelf configurations described in Chapter 6, “Example Shelf Configurations and Topologies.
Chapter 4 Optical Loss Budgets Optical Loss for 8-Port Multi-Service Muxponders Table 4-2 Optical Loss for Transponder Line Cards Protection Type and Direction Loss (dB) Splitter Tx 4.05 Splitter Rx 1.35 Nonsplitter Tx 0.5 Nonsplitter Rx 0.5 Optical Loss for 8-Port Multi-Service Muxponders In both the receive and transmit directions, splitter 8-port multi-service muxponders attenuate the ITU signal significantly more than the nonsplitter transponder line cards.
Chapter 4 Optical Loss Budgets Optical Loss for 10-Gbps ITU Tunable and Non tunable Trunk Cards Optical Loss for 10-Gbps ITU Tunable and Non tunable Trunk Cards In both the receive and transmit directions, splitter 10-Gbps ITU tunable and non tunable trunk cards attenuate the ITU signal significantly more than the nonsplitter 10-Gbps ITU tunable and non tunable trunk cards.
Chapter 4 Optical Loss Budgets Optical Loss for PSMs Loss for the OSC Table 4-7 shows the optical loss for the OSC between the OSC module and the OADM modules. Table 4-7 Optical Loss for the OSC Through the OADM Modules Type of OADM Module Trunk IN to OSC Transceiver (dB) OSC Transceiver to Trunk OUT (dB) 4-channel OADM with OSC 2.8 2.8 Optical Loss for PSMs The PSM attenuates the trunk signal as it passes between the trunk fiber and the OADM module, ITU trunk card, or transponder line card.
Chapter 4 Optical Loss Budgets Client Signal Latency on Aggregation Card 4-Port 1-Gbps/2-Gbps FC Aggregation Cards The 4-port 1-Gbps/2-Gbps FC aggregation card adds latency to FC traffic. The amount of latency depends on how traffic is configured on the node. Table 4-12 shows the FC latency values for different configurations of the 4-port 1-Gbps/2-Gbps FC aggregation card.
Chapter 4 Optical Loss Budgets Client Signal Latency on Aggregation Card 8-Port FC/GE Aggregation Cards The 8-port FC/GE aggregation card adds latency to FC traffic. The amount of latency depends on how traffic is configured on the node. Table 4-12 shows the FC latency values for different configurations of the 8-port FC/GE aggregation card.
Chapter 4 Optical Loss Budgets Fiber Plant Testing Table 4-13 Latency Values for 8-Port Multi-Service Muxponders (continued) Unidirectional End-to-End Latency for 0 km Fiber Protocol Typical Latency (microseconds) Maximum Latency (microseconds) SDI 17 20 DVB-ASI 9 11 Fiber Plant Testing Verifying fiber characteristics to qualify the fiber in the network requires proper testing. This document describes the test requirements but not the actual procedures.
Chapter 4 Optical Loss Budgets Fiber Plant Testing ORL ORL is a measure of the total fraction of light reflected by the system. Splices, reflections created at optical connectors, and components can adversely affect the behavior of laser transmitters, and they all must be kept to a minimum of 24 dB or less. You can use either an OTDR or an LTS equipped with an ORL meter for ORL measurements. However, an ORL meter yields more accurate results.
Chapter 4 Optical Loss Budgets Fiber Plant Testing Cisco ONS 15530 Planning Guide 4-12 OL-7708-01
C H A P T E R 5 Amplified Network Planning The Cisco ONS 15530 topologies might require signal amplification because of the distance between nodes and the optical loss of channels as they pass through nodes in the network. This chapter discusses the amplification and attenuation features supported by the Cisco ONS 15530.
Chapter 5 Amplified Network Planning About Variable Optical Attenuation Figure 5-1 Erbium-Doped Fiber Amplifier Design Isolator Coupler Coupler Isolator Pump laser Pump laser 48093 Erbium-doped fiber (10-50 m) The key performance parameters of optical amplifiers are gain, gain flatness, noise level, and output power. EDFAs are typically capable of gains of 30 dB or more and output power of 17 dBm or more. The target parameters for an EDFA, however, are low noise and flat gain.
Chapter 5 Amplified Network Planning VOA Modules PB-OE Modules The PB-OE module selects and attenuates one or two specific four-channel bands and passes the remaining bands to be attenuated by another PB-OE module, by a WB-VOA module, or not attenuated at all. After the bands are attenuated, they are merged back together and sent out on the trunk fiber.
Chapter 5 Amplified Network Planning VOA Modules Figure 5-3 Dual Band PB-OE Module and Single WB-VOA Module Example Single WB-VOA module Upgrade out Upgrade in In Out 77931 In Out = Power monitor The PB-OE modules can also be use to provide an optical seam that terminates unused bands in a meshed ring topology. Unlike a hubbed ring network, the unused and dark channels in a meshed ring topology are not terminated by any OADM module anywhere in the network.
Chapter 5 Amplified Network Planning VOA Modules Figure 5-4 Optical Seam Example Unconnected upgrade ports PB-OE (band C) PB-OE (band B) West OADM module East OADM module Trunk Trunk Upgrade in 99552 Upgrade out WB-VOA Modules The Cisco ONS 15530 supports two types of WB-VOA modules: single and dual. A single WB-VOA module accepts an optical signal and attenuates all frequencies within that signal.
Chapter 5 Amplified Network Planning Amplified Network Planning Considerations You can use WB-VOA modules for the following types of attenuation: • Per channel—attenuate only a single data channel or the OSC. Place the WB-VOA module between the line card and the OADM. • Wide band—attenuate all channels on the trunk signal. Use this configuration to avoid saturating the amplifiers. • Pass through band channels—attenuate the pass through bands by an OADM.
Chapter 5 Amplified Network Planning Amplified Network Planning Guidelines Chromatic Dispersion Chromatic dispersion occurs because different wavelengths propagate at different speeds.It can result in signal power spread and can reduce receiver sensitivity. Amplified Network Planning Guidelines This section describes the guidelines for planning a Cisco ONS 15530 amplified network.
Chapter 5 Amplified Network Planning Amplified Network Planning Guidelines Channel Power Equalization Amplified networks require that all channel powers be equalized in the network. There are two channel equalization options for Cisco ONS 15530 and Cisco ONS 15540 networks: per-channel and per-band equalization. In the per-channel option, a WB-VOA module is placed between each transmitting ITU laser and the OADM module.
Chapter 5 Amplified Network Planning Amplified Network Planning Guidelines Fiber Nonlinearity To avoid undesirable nonlinear effects, the maximum allowed channel power in ITU-652 compliant fibers must be limited in the network. Maximum per-channel power for 10 Gbps channels is 2 dBm when there are at most three post-amplifiers, and 0 dBm when there are at most five post-amplifiers. Maximum per-channel power for 2.5 Gbps channels is 5 dBm when there are at most five post-amplifiers.
Chapter 5 Amplified Network Planning Amplified Network Planning Guidelines Cisco ONS 15530 Planning Guide 5-10 OL-7708-01
C H A P T E R 6 Example Shelf Configurations and Topologies The requirements of a particular topology determine what components must be used and how they are interconnected. This chapter provides examples of shelf configurations and optical power budget calculations specific to each of the main types of protection schemes supported by the Cisco ONS 15530, and examples of supported topologies.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-1 shows an example of a Cisco ONS 15530 shelf in an unprotected configuration using nonpsplitter transponder line cards.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-3 shows an example of a Cisco ONS 15530 shelf in an unprotected configuration using ESCON aggregation cards and nonsplitter 2.5-Gbps ITU trunk cards. Unprotected Configuration Using ESCON Aggregation Cards and a 2.5-Gbps ITU Trunk Card OSC Power supply 0 CPU switch CPU switch ESCON Power supply 1 85849 2.5-GbpsITU trunk ESCON OSC 2.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-5 shows an example of a Cisco ONS 15530 shelf in an unprotected configuration using 8-port FC/GE aggregation cards and a nonsplitter 10-Gbps ITU trunk card.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-7 shows an example of a Cisco ONS 15530 shelf in an unprotected configuration using ESCON aggregation cards and a 10-Gbps uplink card.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-9 shows the optical power budget for an unprotected configuration using nonsplitter 8-port multi-service muxponders. From client Optical Power Budget for an Unprotected Configuration Using Nonsplitter 8-Port Multi-Service Muxponders Splitter 8-port multi-service muxponder 4.05 dB To client Splitter 8-port multi-service muxponder 1.35 dB OADM module To trunk 4.1 dB OADM module 4.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-11 shows the optical power budget for a splitter protected configuration. Figure 6-11 Optical Power Budget for a Splitter Protected Configuration Using Transponder Line Cards From client OADM module 4.05 dB 4.1 dB Splitter transponder line card OADM module 1.35 dB 4.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-13 shows the optical power budget for a splitter protected configuration. Figure 6-13 Optical Power Budget for a Splitter Protected Configuration Using Splitter 2.5-Gbps ITU Trunk Cards From client OADM module 4.05 dB 4.1 dB Splitter 2.5-Gbps ITU trunk card OADM module 1.35 dB 4.1 dB To trunk From trunk 85850 To client Splitter 2.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-15 shows the optical power budget for a splitter protected configuration. Figure 6-15 Optical Power Budget for a Splitter Protected Configuration Using 10-Gbps ITU Trunk Cards From client OADM module 4.05 dB 4.1 dB Splitter 10-Gbps ITU trunk card OADM module 1.35 dB 4.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-17 shows the optical power budget for a splitter protected configuration using 8-port multi-service muxponders. Optical Power Budget for a Splitter Protected Configuration Using 8-Port Multi-Service Muxponders Splitter 8-port multi-service muxponder From client 4.05 dB Splitter 8-port multi-service muxponder To client 1.35 dB OADM module To trunk 4.1 dB OADM module 4.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-19 shows the optical power budget for a line card protected configuration using nonsplitter transponder line cards. Figure 6-19 Optical Power Budget for a Line Card Protected Configuration Using Nonsplitter Transponder Line Cards From client OADM module 0.5 dB 4.1 dB Nonsplitter transponder line card OADM module 0.5 dB 4.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-21 shows the optical power budget for a client based line card protected configuration using nonsplitter 2.5-Gbps ITU trunk cards. Figure 6-21 Optical Power Budget for a Client Based Line Card Protected Configuration Using Nonsplitter 2.5-Gbps ITU Trunk Cards From client OADM module 0.5 dB 4.1 dB Nonsplitter transponder line card OADM module 0.5 dB 4.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-23 shows the optical power budget for a client based line card protected configuration using nonsplitter 10-Gbps ITU trunk cards. Figure 6-23 From client Nonsplitter 10-Gbps ITU trunk card OADM module 0.5 dB 4.1 dB Nonsplitter Noinsplitter 10-Gbps 10-Gbps ITU trunk ITU line card card OADM module 0.5 dB 4.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-24 shows an example of a Cisco ONS 15530 shelf in a client based line card protected configuration using ESCON aggregation cards and 10-Gbps uplink cards.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-26 shows the optical power budget for a line card protected configuration using nonsplitter 8-port multi-service muxponders. Optical Power Budget for a Line Card Protected Configuration Using Nonsplitter 8-Port Multi-Service Muxponders From client To client Nonsplitter 8-port multi-service muxponder OADM module 0.5 dB 4.1 dB Nonsplitter 8-port multi-service muxponder OADM module 0.5 dB 4.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-28 shows the optical power budget for a switch fabric based line card protected configuration. Figure 6-28 Optical Power Budget for Switch Fabric Protected Configurations Using Nonsplitter 2.5-Gbps ITU Trunk Cards From client OADM module 0.5 dB 4.1 dB Nonsplitter 2.5-Gbps ITU trunk card OADM module 0.5 dB 4.1 dB To trunk From trunk 85847 To client Nonsplitter 2.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-30 shows the optical power budget for a switch fabric based line card protected configuration. Figure 6-30 Optical Power Budget for Switch Fabric Protected Configurations Using Nonsplitter 10-Gbps ITU Trunk Cards From client OADM module 0.5 dB 4.1 dB Nonsplitter 10-Gbps ITU line card OADM module 0.5 dB 4.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Trunk Fiber Based Protection Configurations This section describes the configuration of line cards for trunk fiber protected configurations. Figure 6-32 shows an example of a Cisco ONS 15530 shelf in a trunk fiber protected configuration with transponder line cards. Trunk Fiber Protected Configuration Using Nonsplitter Transponder Line Cards CPU switch CPU switch Power supply 0 2.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-34 shows an example of a Cisco ONS 15530 shelf in a trunk fiber protected configuration with 8-port multi-service muxponders.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-36 shows an example of a Cisco ONS 15530 shelf in a trunk fiber protected configuration with an ESCON aggregation card and two nonsplitter 2.5-Gbps ITU trunk cards. OSC Trunk Fiber Protected Configuration Using a Nonsplitter 2.5-Gbps ITU Trunk Card CPU switch CPU switch Power supply 0 ESCON Power supply 1 85865 2.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Figure 6-38 shows an example of a Cisco ONS 15530 shelf in a trunk fiber protected configuration with an ESCON aggregation card and two 10-Gbps ITU trunk cards.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations Multiple Shelf Node Configurations This section describes multiple shelf nodes consisting of only Cisco ONS 15530 shelves and multiple shelf nodes consisting of Cisco ONS 15530, Cisco ONS 15540 ESP, and Cisco ONS 15540 ESPx shelves. ITU Linked Configuration Figure 6-40 shows a multiple shelf node with three Cisco ONS 15530 shelves linked to the OADM modules on a fourth Cisco ONS 15530 shelf.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations DWDM Linked Configuration Figure 6-41 shows an example of DWDM linking with two Cisco ONS 15530 shelves linked together via the OADM modules to form a single logical node.
Chapter 6 Example Shelf Configurations and Topologies Shelf Configurations 10-GE Client Signal Uplink Configuration Figure 6-42 shows an example of an unprotected 10-GE client signal linking a Cisco ONS 15530 shelf and a Cisco ONS 15540 ESPx or Cisco ONS 15540 ESP shelf.
Chapter 6 Example Shelf Configurations and Topologies Cisco ONS 15530 Topologies Figure 6-43 shows an example of protected 10-GE client signal linking between a Cisco ONS 15530 shelf and a Cisco ONS 15540 ESPx or Cisco ONS 15540 ESP shelf.
Chapter 6 Example Shelf Configurations and Topologies Cisco ONS 15530 Topologies Point-to-Point Topologies The Cisco ONS 15530 supports point-to-point topologies, with or without signal protection. A single shelf supports up to four protected channels and up to eight unprotected channels. To supports more channels, multiple shelf nodes can be used.
Chapter 6 Example Shelf Configurations and Topologies Cisco ONS 15530 Topologies Figure 6-46 shows an example of a trunk fiber protected point-to-point topology between two Cisco ONS 15530 shelves.
Chapter 6 Example Shelf Configurations and Topologies Cisco ONS 15530 Topologies Unprotected Meshed Ring Topology Figure 6-48 shows an example of an unprotected meshed ring topology consisting of only Cisco ONS 15530 shelves and supporting on four channels.
79289 OADM OL-7708-01 10p ESCON 10 Gbps ITU 10 Gbps ITU 10p ESCON CPU switch CPU switch 10p ESCON 10p ESCON OADM Power supply 1 10p ESCON 10 Gbps ITU 10 Gbps ITU 10p ESCON CPU switch CPU switch 10p ESCON 10p ESCON 10p ESCON OADM 10p ESCON OADM Power supply 0 OADM 10p ESCON 10 Gbps ITU 10 Gbps ITU 10p ESCON CPU switch CPU switch 10p ESCON 10p ESCON 10p ESCON 10p ESCON OADM 10p ESCON 10 Gbps ITU 10 Gbps ITU 10p ESCON CPU switch CPU switch 10p ESCON 10p ESCON 10p ESCON
Chapter 6 Example Shelf Configurations and Topologies Cisco ONS 15530 Topologies Meshed Ring Topology Using Multiple Cisco ONS 15530 Shelf Nodes You can configure the Cisco ONS 15530 shelves in a meshed ring topology. The most common application for this configuration is when multiple bands are supported on a node. Figure 6-50 shows a logical view of a meshed ring topology consisting of Cisco ONS 15530 shelves with multiple shelf nodes.
79316 OADM OL-7708-01 10p ESCON 10-Gbps ITU 10-Gbps ITU 10p ESCON CPU switch CPU switch 10p ESCON 10p ESCON 10p ESCON 10p ESCON Power supply 1 Power supply 0 10p ESCON 10-Gbps ITU 10-Gbps ITU 10p ESCON CPU switch CPU switch 10p ESCON 10p ESCON 10p ESCON 10-Gbps ITU 10-Gbps ITU 10p ESCON CPU switch CPU switch 10p ESCON 10p ESCON 10p ESCON 10p ESCON Power supply 1 10p ESCON 10p ESCON 10p ESCON 10-Gbps ITU 10-Gbps ITU 10p ESCON CPU switch CPU switch 10p ESCON 10p ESCON
Chapter 6 Example Shelf Configurations and Topologies Cisco ONS 15530 and Cisco ONS 15540 Mixed Topologies Cisco ONS 15530 and Cisco ONS 15540 Mixed Topologies The Cisco ONS 15530, Cisco ONS 15540 ESP, and Cisco ONS 15540 ESPx systems can be used in the same network topology. The most common application is using a Cisco ONS 15540 ESP or Cisco ONS 15540 ESPx as the hub node in a hubbed ring topology.
Chapter 6 Example Shelf Configurations and Topologies Cisco ONS 15530 and Cisco ONS 15540 Collocated Topologies Cisco ONS 15530 and Cisco ONS 15540 Collocated Topologies The Cisco ONS 15530 can be combine with a Cisco ONS 15540 ESP or Cisco ONS 15540 ESPx system in the same network node. The most common application is using a Cisco ONS 15540 ESP or Cisco ONS 15540 ESPx as the hub node in a hubbed ring topology where aggregated services are required.
Chapter 6 Example Shelf Configurations and Topologies Cisco ONS 15530 and Cisco ONS 15540 Collocated Topologies Cisco ONS 15530 Planning Guide 6-34 OL-7708-01
A P P E N D I X A IBM Storage Protocol Support This appendix provides descriptions and design considerations for protocols used in an IBM storage environment. This appendix contains the following major sections: • IBM Storage Environment, page A-1 • Supported Protocols, page A-2 • Client Optical Power Budget and Attenuation Requirements, page A-4 IBM Storage Environment Figure A-1 shows a an IBM storage environment application with GDPS (Geographically Dispersed Parallel Sysplex).
Appendix A IBM Storage Protocol Support Supported Protocols Supported Protocols The Cisco ONS 15530 can provide the transport layer for the following IBM storage related protocols: • ESCON • FICON • Coupling Facility • Sysplex Timer links The Cisco ONS 15530 can also be used to help implement the high availability features for the following applications: • PPRC • XRC • GDPS ESCON ESCON (Enterprise System Connection) is a 200-Mbps unidirectional serial bit transmission protocol used to dyna
Appendix A IBM Storage Protocol Support Supported Protocols Figure A-2 ESCON Data Rate as a Function of Distance Data Rate MB/sec 20 17.6 10 9 8.5 9 23 60 km 58985 3.4 Distance FICON FICON (Fiber Connection) is the next generation bidirectional channel protocol used to connect mainframes directly with control units or ESCON aggregation switches (ESCON Directors with a bridge card). FICON runs over Fibre Channel at a data rate of 1.062 Gbps.
Appendix A IBM Storage Protocol Support Client Optical Power Budget and Attenuation Requirements PPRC PPRC (peer-to-peer remote copy) is a facility used in certain IBM disk controllers that allows synchronous mirroring of data. XRC XRC (extended remote copy) is a facility used with certain IBM disk controllers that allows asynchronous mirroring of data. GDPS GDPS (Geographically Dispersed Parallel Sysplex) is a multisite parallel sysplex with sites up to 40 km apart.
I N D EX shelf configuration rules Numerics 3-3 10-Gbps uplink cards 2.
Index C D cabling. See OADM cabling data channels carrier motherboards description maximum number supported 1-3 optical loss through OADM modules 1-27 channels.
Index erbium-doped fiber amplifiers.
Index transponder line card support configurations 1-7 ISC peer mode 6-22 to 6-25 meshed ring topology examples transponder line card support 6-30 to 6-31 mux/demux modules. See OADM modules 1-7 ITU-T G.692 laser grid 1-3 N network management L comparison (table) linear topologies.
Index optical loss Optical Supervisory Channels. See OSCs 2.
Index protection security features description ring topologies types overview 1-3, 2-1 1-33 shelf configuration rules 2-20 OADM modules 2-2 to 2-17 See also APS; client protection; line card protection; splitter protection; y-cable protection protection switch modules.
Index description shelf configuration rules 2-13 to 2-15 switch fabric based protection configurations ESCON aggregation card example (figure) splitter protection support 6-15, 6-16 switch fabric protection considerations 2-2 to 2-3, 2-3 to 2-4 y-cable protection support (figure) 2-8 trunk fiber protected configurations 2.
Index X XRC client interface support description A-2 A-4 Y y-cable protection considerations description figure 2-9 2-8 to 2-9 2-8 Cisco ONS 15530 Planning Guide IN-8 OL-7708-01
