Cisco Systems ONS 15200 User Manual

Cisco ONS 15200 Product Description

Release 1.1 January 2002

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Cisco ONS 15200 Pr oduct Description

About this Manual xi

Manual Structure xi

About this Manual

This Cisco ON S 1520 0 P roduct Description summariz es the Cisco O NS 15200 system ar chitect ure, management, and perform ance. Sof tware, c omponent s, module s, mechani cal speci fication s, and installation information are also covered. For detailed information about these topics, refer to the documents in th e Re late d Docu ment atio n se ct ion.

Manual Structure

The manual is organi zed a s f oll ows :

• Chapter 1, “Product T echnology,” explains the principles of dense wavel ength division multiplexing

(DWDM) and descr ib es how t hes e pri n ciple s a pp ly in t he O NS 1 520 0 sy stem .

• Chapter 2, “Product Configurations,” describes the operation of each available site type.

• Chapter 3, “Product Hardware,” provid es inform ation abou t the physi cal equ ipment in the

ONS 15200 system, including dime nsions , subrac ks, po wer, and groun ding . It a lso co ntai ns compliance information and environmental, safety, and electromagnetic compatibility regulations.

• Chapter 4, “Operation, Administ rat ion, and M ain tena nce ,” provides information about

administering and super vising ONS 152 00 optic al units, ne twork elemen ts, and links . It also presents informat ion about pe rform ance man agem ent, softw are, an d other administ rativ e feature s, such as alarms, available with the ONS 15200 system.

• Chapter 5, “Module Descriptions, ”describes each module that is available with the ONS 15200

system.

• Chapter 6, “Engineering Specifications,” provides general specifications for the ONS 15200

system.

• Appendix A, “Acronyms,” d efi nes a crony ms an d other ab bre via tions u s ed i n t he m an ual.

Relevant Standards

• Cisco ONS 15200 Web Interface Software User Manual

• Cisco ONS 15200 Com mand Line Int erface Ma nual

Relevant Standards

The following st anda rd s app ly t o the ON S 15 200 :

• CFR 1040.10 (1997)

• EN 60 950

• ETS 300 019-1-1 (1992), cla ss 1.1

• ETS 300 019-1-2 (1992), cla ss 2.3

• ETS 300 019-1-3 (1992), cla ss 3.1

• ETS 300 132-2 (1996)

• ETS 300 253 (199 5)

• ETS 300 386-1 (1994)

About this Manual

• LVD 73/23/ECC

• FCC Part 15

• IEC 60825-1 (199 3)

• IEC 60825-2 (200 0)

• ITU-T G.652 (19 97)

• ITU-T G.655 (19 96)

• ITU-T G.692

• ITU-T G.825 (19 93)

• ITU-T G.957 (19 95)

• ITU-T G.958 (19 95)

• ITU-T G.972 (19 99)

• Telcordia GR-63-CORE

• Telcordia GR-1089-CORE

• Telcordia SR-3580

• UL 1950

Obtaining Documentation

The following sections prov ide sou rces for obta ining docum entati on from Cisc o Systems.

World Wide Web

You can access the most curr e nt Ci sco docum en tat ion on the World Wide Web at the following U RL :

http://www.cisco.com

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About this Manual

Translated documentation is available at the follo wing URL :

http://www.cisco.com/public/countries_languages.shtml

Optical Networking Product Documentation CD-ROM

Optical networki ng-re late d d ocu menta ti on, i ncl uding the Cisco ONS 15200 Product Description, i s available in a CD-ROM package that ships with your product. The Optical Networking Product Documentation CD-RO M is update d as require d and ther efore i t may be more cu rrent th an print ed documentation. The CD-ROM package is available as a single package or as an annual subscription.

Ordering Documentation

Cisco documentation is available in the following ways:

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Networking Product CD-ROM, from t he Netw ork ing Prod ucts M arke tPlac e:

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Obtaining Technical Assistance

Cisco provides Cisco. com as a st artin g point for all tec hni cal assi stan ce. Cus tome rs and p artne rs can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website.

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Obtaining Documentation

Cisco.com

About this Manual

Cisco.com is the foundation of a suite of interactive, networked services th at pro vides immedia te, open access to Cisco information, networking solutions, servi ces, programs, and resources at an y time, from anywhere in t he w or ld.

Cisco.com is a hi gh ly int egra te d I nterne t a ppli cat ion and a pow erful , e asy-t o- use too l tha t pr ovide s a broad range of fea tur es an d s ervi ces to hel p you t o

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Technical Assistance Center

The Cisco TAC is available to all customers who need technical assistance wit h a Cisco pro duct, technology, or solution. Two types of support are availab le throu gh the Cisco TAC: the Cisco TAC We b Site and the Cisco TAC Escalation Center.

Inquiries to Cisco TAC are categorized according to the urgency of the issue:

• Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities,

product installation, or basi c product configura tion.

• Priority level 3 (P3)—Your ne two rk perf orm ance is d eg rade d. N etw ork f unc tiona lity is no tice ably

impaired, but most business operations continue.

• Priority level 2 (P2)—Your production network is severely degrade d, affecting sign ificant asp ects

of business oper at ion s. N o wor ka ro und i s a vai lab le.

• Priority level 1 (P1)—Y our production network is down, and a critical impact to business operations

will occur if service is not res tored quickly. No workaround is available.

Which Cisco TA C resource you choo se is based on the priority of the problem and the c onditions of service cont rac ts, w h en appl ic ab le .

Cisco TAC Web Site

The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself , saving b oth c os t an d tim e. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to the fo l lowing U RL:

http://www.cisco.com/tac

xiv

All customers, partners, and resellers who have a va lid Cisco services contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to the following URL to regist er:

http://www.cisco.com/register/

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About this Manual

If you cannot resolve yo ur t ech nica l iss ues by usi ng the Ci sco TAC Web Si te, and you a re a Cisco. co m registered user, you can open a case online by using the TAC Case Open tool at the following URL:

http://www.cisco.com/tac/caseopen

If you have Internet acc ess, it is recomm ended th at you open P3 and P4 cases throug h the Cisco TAC We b S it e.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses issues that are classifi ed as prio rity level 1 or priority level 2; these classificatio ns are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case.

To obtain a directory of toll-free C isco TAC telephone numbers for yo ur c oun try, go to the follow ing URL:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). In addition, please have available your service agreement number and your product serial numb er.

Obtaining Documentation

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Product Technology

This chapter presents the general system technology and the available protection architectures for Cisco’s dense wavelength division m ultiple xin g (D WDM) m etro sy st em, the Cisc o ONS 152 00.

1.1 Optical System Description

The ONS 15200 DWDM metro system transports da ta over wavel engths using fiber-optic cables. The ONS 15200 operates in the 1550 nm transm ission win dow. Over a single optical fiber pai r, the ONS 15200 can carry up to sixtee n channe ls of data in the follo wing bit ra tes and for mats:

• 155 Mbps – SONET OC-3 or SDH STM-1

• 622 Mbps – SONET OC-12 or SDH STM-4

• 2.5 Gbps – SONET OC-48 or SDH STM-16

• 100 Mbps – 1. 25 Gbps, pass-thro ugh mode /2R operat ion

CHAPTER

Protected or unpro tec ted da ta can tra nsmi t ov er the ON S 1 520 0. The optical layer is independent of the electronic protocol that is external to the ONS 15200 system. You

can use any hig her-level p roto co l, inc lud in g pro pri et ary p rod uc ts, wit hin the ON S 1 5200 sy stem . Any protocol used must fulfill the requirements listed in this book, including the bit rates listed in this section.

1.2 Optical Channels

In the ONS 15200 system, optical channels transport informatio n between two client-layer interface ports. All optical channels in the ONS 15200 system are duplex channels, which means that traffic flows in both directions. The optical channels can be unprotected, as described in the “Unprotected Channels”

section on page 1-1 , or pro tected , as descr ibed in the “Pro tected Ch ann els” section on page 1-2.

1.2.1 Unprotected Channels

In an unprotected channel, protection fiber is not available. Only one fiber sends traffic to the client layer of the receivin g no de . You can use unprotecte d chann el s wher e pro tec tio n is n ot ne ede d or if th e cli ent layer provides pro t ect ion. Cisc o re co mm ends t h at you on ly u se pro tec ti on in o ne l ay er a nd avoi d

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Optical Channels

Chapter 1 Product Technology

potentially conflict ing protec tion schem es. You can add protection in the client layer describ ed in the

“Physical Layout” section on page 3 -5. Figure 1-1 di splays an exa mple of ONS 152 00 unprote cted

channels.

Figure 1-1 Unprotected channels in an ONS 15200 system

CLIENT IN

CLIENT OUT

1.2.2 Protected Channels

In optically-protected channels, data traffic flows in two physically separated streams to the receiving node. The conf igura ti on of th e re ce ivi ng nod e de term in es w hi ch t raffic f lo w i s tra nsfe r red t o the cli ent layer of the re ce ivi ng no de . Figure 1-2 displays an example of optical fiber-prote cted chann els in an ONS 15200 system. This form of opti cal chan nel prot ection i s rapid and provi des cont inued syst em coverage in case o f fibe r bre ak s bet we en no de s.

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CLIENT IN

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Figure 1-2 Optically-fiber protected channels in an ONS 15200 system

DIVIDER

CLIENT INPUT

SIGNAL

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OPTICAL

CHANNEL

Optical Channels

SELECTOR

CLIENT OUTPUT SIGNAL

Client-layer prot ecti on sche mes f or the ON S 1 520 0 are :

• SONET/SDH ADM rings—Traffic travels in two directions bet wee n an y t wo nod es. I f one r oute

fails, the alternate route continues to transport the traffic.

• Client-la ye r 1+ 1 APS —Two separate connections exist between two client -la yer int erfa ces. One o f

the connections is st andb y a nd is use d o nly wh en the ac tiv e conne c tio n fai ls.

• Layer 3 load sharing—Two routes transport traffic f rom o ne c lient to a d ual home no de ( s ee

Chapter 2, “Product Configurations” for a description of the dual home node configur ation ). The

routes are used belo w their maximum capacity. If one of the two routes f ails, th e tra ffic shifts to the other route.

1.2.3 Software Configurable Protection

In Release 1.1, the 2R/3R (u nclo cked /cl ocke d) Clie nt L ayer I nterfa ce Port (CL IP) m odule is use r configurable f or unp rot ec ted or fib er pr ote cte d opera ti on.

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Product Configurations

This chapter desc rib es co mm on Cisco ON S 1 520 0 n etwor k c onfi gu ratio ns. Al l mo dule s m ent ione d in this chapter are described in more detail in Chapter 5, “Module Descriptions.”

2.1 ONS 15200 Network Configurations

The ONS 15200 operates in several network configuration arrangements. All ONS 15200 configurations consist of one or more ONS 15252 Mult ichannel Un its (MCU) or ONS 15201 Single -Channe l Units (SCUs). The following inf ormation describe s some standar d ONS 15200 network configura tions, including:

• The “Bus Confi guration ” sect ion on page 2-1

• The “Ring Conf igurati on” section on page 2-2

• The “Dual-Home Configuration” section o n pag e 2-3

• The “Multichannel Point-to-Point Configuration” section on page 2-3

CHAPTER

• The “Ring Configuration with Hubbed and Meshed Traffic” section on page 2-4

• The “Full-Mesh Configuration” section on page 2-5

2.1.1 Bus Configuration

In an ONS 15200 system bus configu ratio n, waveleng th channe ls link an ONS 152 52 MCU to ONS 15201 SCUs. Use this confi guratio n only in networks where opti cal-la yer fibe r protec tion is unnecessary. It is possible to configure the bus configuration for layer-3 load-sharing protection or client layer 1+1 APS, but the two data traffic flows would need to share the same optical fiber path, and therefore protecti on would be incomple te.

In the bus configuration, the Client Layer Interface Port (CLIP) modules located in the ONS 15252 MCU and in each ONS 15 201 SCU excha nge data. Figure 2 -1 illustrate s the ONS 15200 syste m bus configuration.

Note The physical connec tion in Figure 2-1 consists of two fiber-optic cables.

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Figure 2-1 An ONS 15200 bus configuration linking an ONS 15252 MCU to eight ONS 15201 SCUs

PHYSICAL

CONNECTION

CLIENT

Client

Chapter 2 Product Configurations

ONS 15252

ONS 15201

2.1.2 Ring Configuration

In the ONS 1520 0 r ing co nfig ura tion, wa ve leng th c hanne ls e xis t betw ee n an O NS 15252 MCU and several ONS 15201 SCUs. A CLIP module installed in the O NS 15252 MCU exchanges da ta with an associated CLIP mo dul e i nsta lled in an ON S 15 201 SCU.

You ca n in stall the ring conf ig urati on with or wi thou t fibe r-optic pro tec tio n. T he ri n g con figur a tion supports SONET o r SDH ring protection and 1+1 APS cl i ent-layer protectio n.You can also arrange the ring configuratio n to use layer-3 load sharing. Figu re 2-2 illustrates the ring configuration with hubbed traffic.

Note The physical connec tion in Figure 2-2 consists of two fiber-optic cables.

ONS 15201

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ONS 15201

ONS 15201 ONS 15201 ONS 15201

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Client

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Figure 2-2 Ring configuration with hubbed traffic

PHYSICAL

CONNECTION

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2.1.3 Dual-Home Configuration

In the dual-home configuration, a pair of ONS 15201 SCUs share the total data traffic load between two different fiber-optic cable (fib er) rou tes. The pai r of ONS 15201 SCUs can use id entic al or different wavelength channel s to comm unicate with thei r respec tive ON S 15252 MC Us. Usin g ident ical wavelength channels conserve s network resource s. In addit ion to load sha ring, the dual-hom e configuration pro vide s tr affic pro tec tio n in the el ect ro nic cli e nt-la ye r dom ain . If one fi ber rou te is lost, the data traffic shifts to the other fiber route in the client layer.

In addition to protecting traffic at the client layer, the dual-home configuration protects the ONS 15200 system against single MCU or SCU failures. Figure 2-3 illustrates the ONS 15200 dual-home configuration.

Note The physical connec tion in Figure 2-3 consists of two fiber-optic cables.

Figure 2-3 Dual-home configuration

ONS 15200 Network Configurations

CLIENT

Client

PHYSICAL

CONNECTION

ONS 15252

LOGICAL CONNECTIONS

ONS 15201

ONS 15201(TWO)

ONS 15201

CLIENT

Client

2.1.4 Multichannel Point-to-Point Configuration

In the ONS 15200 multichannel, point-to-point configuration, multiple wavelength channels exist between a pair of ONS 15252 MCUs. You can set up the multichan nel point- to-point configur ation wit h or without optic al-l ay er pro tec ti on. Co nfi g uring op tica l-l ay er prot ect ion r eq uire s d ual fibe r ro utes.

In the ONS 15200 multichannel, point-to-point configurations, dual fiber routes send information along two separate fiber routes . The dual physical rou te configu ration suppo rts SONET or SD H add/drop multiplexer (ADM) prote ction and c lient-la yer 1+1 APS prot ection.

Cisco does not r ecom mend impl eme nti ng layer-3 l o ad-sha ring p rote ction i n a mu ltic ha nnel point-to-point confi guration because the two netwo rk fiber rout es need to share an ONS 15252 MCU, and any failure of the ONS 15252 MCU would cause both routes to disappear simultaneously . Figure 2-4 illustrates the ONS 15200 multichannel, point-to-point configurations.

ONS 15201

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ONS 15252

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CONTENTS

About this Manual

Manual Structure

Related Documentation

Relevant Standards

Obtaining Documentation

World Wide Web

Optical Networking Product Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Cisco TAC Web Site

Cisco TAC Escalation Center

Product Technology

1.1 Optical System Description

1.2 Optical Channels

1.2.1 Unprotected Channels

1.2.2 Protected Channels

1.2.3 Software Configurable Protection

Product Configurations

2.1 ONS 15200 Network Configurations

2.1.1 Bus Configuration

2.1.2 Ring Configuration

2.1.3 Dual-Home Configuration

2.1.4 Multichannel Point-to-Point Configuration