Layer 2 switching and mapping of ethernet services into an otn network. Jul 11, 2011 scalability of the electrical switch fabric. An optical transport network otn is an interconnection of optical switches and optical fiber links. In a similar manner the tpoc415 device can work together with the tpo215 processor to implement high density 10g cards with oduk multiplexing to odu2, with mapping 10g clients to otn or with pure ethernet switching interfaces in any mix. A key benefit is that different service types and different bandwidth granularities can be encapsulated within the same outk channel, which increases bandwidth utilization. This approach results in n or 2n mirrors 2n mirrors offer lower insertion losses. Innovative digimeshconnect architecture which enables compact, payasyougrow otn switching at lowest cost and power by eliminating the need for a centralized switch fabric device. Furthermore, deploying otn in the access network can provide the onramp to roadm andor otnroadm networks for a standard, channelized handoff to other carriers and a fully transparent service interface. Customer case study microsemi optical transport networking. The 5410 features a unified sonetsdhotnpacket switch fabric, cienas oneconnect intelligent control plane, and compact design with 5.
Tj1600 tj1600 core switch core switch tejas networks. Otn versus packet most, if not all, regional carriers use a packet network. Traditionally, operators have deployed multiple boxes to handle separate functions of. Leveraging the latest technology innovation, the 6500 integrates packet, otn, and flexible wavelogic photonics capabilities. Enabling otn switching over packetcell fabrics white paper. Otn is out there while ethernet is prevalent, says winston mok, technical author of the otn implementation agreement.
Otn switch fabrics are typically implemented using packet switch. Wdm interfaces the cisco ncs 4000 400 gbps dwdmotnpacket universal line card provides two high speed cfp2based dwdm ports capable of transmitting 100 gbps, 150 gbps or 200 gbps carriers, which can be transported independently across the network or combined into a 400 gbps dualwavelength superchannel. Light can be redirected in space to multiple angles. Supports up to 120g of ethernet interfaces faceplate for aggregation into the packet switch fabric and encapsulation into 100g otn backplane. The ability to switch at the otn layer means more flexible service provisioning endtoend and minimal chance of blocking. Muxponders also lock operators into the long legacy of manual provisioning. Otn switching is added, organizations can stop using manual fiber connections for capacity. Otn has the added expense of wavelength termination, otn switch fabrics, and wavelength regeneration. May 08, 2012 join the packet pushers and tech field day crew as they discuss the reality of an ethernet fabric with chip copper of brocade. The line card also supports direct interconnection to other slots within the cisco ncs 4016 chassis to interconnect switched otn traffic directly to the ncs 4000 2 x 100g cpdqpsk.
Traffic entering the switch whether it is ethernet, sonetsdh, otn, etc. To reduce the switching fabric complexity, we proposed the structure of a scalable core switch 14, 15 composed of lowcapacity otn switches and one highcapacity space switching fabric. Optical transport network wikimili, the free encyclopedia. Data sheet flashwave 9500 packet optical networking platform. Otn over dwdm system can be implemented with two different architectures i dwdm plus standalone otn switch, where otn switch and dwdm box are connected to each other by short reach optics. Jan 20, 2016 the card supports up to 2level odu4, odu3, odu2, odu1, odu0, and oduflex switching functions by interconnecting with the centralized agnostic switch fabric. Pt fabric is a powerful terabitclass packet optical transport switch consisting of a system of cards that expands the native packet optical. Request pdf integrated otnwdm switching architecture equipped with the minimum number of otn switches in packetoptical integrated transport nodes.
The card supports up to 2level odu4, odu3, odu2, odu1, odu0, and oduflex switching functions by interconnecting with the centralized agnostic switch fabric. With the 1600 services can be matched to the best transport technology whether that is maximizing efficiency with statmuxing, reducing costs by using otn switching or multidegree roadms to bypass routers, maximizing. Otn family 100g sar and packet mapper for pots tpoc415. It complements the z22 and z33 for a complete solution from. Network monitoring equipment is used to build parallel monitoring networks that coexist alongside production communication and data networks, capturing network traffic and sending it to traffic analysis tools, such as network monitoring systems, application performance tools, and security appliances. The centralized fully redundant switch fabric provides anytoany switching capability and aggregation for any service to any port on the platform.
If these are high relative to a roadm then, although. Cienas 6500 supports both muxponder and central fabricbased packet and otn switching solutions. However, in all instances of a universal fabric, the end function is the same. Cisco ncs 4000 400 gbps dwdmotnpacket universal line card. The line card also supports direct interconnection to other slots within the cisco ncs 4016 chassis to interconnect switched otn traffic directly to the ncs 4000 2 x 100g cpdqpsk full c band tunable dwdm line. Due to the plethora of 10m and 100m services in the. Switched otn for regional carrier networks h1 n1 n2 n3 otn. Microsemi innovation in 100g otn switching technology is critical to making this. Cisco ncs 4000 optical transport network otn line cards.
Universal switching fabrics are an important tool in achieving transport network ele ment convergence. Microsemis digi otn processors in apollos fabric interface cards provide a centralized switching architecture for complete flexibility in the otn infrastructure, eliminating blocking and. The flashwave 9500 otn switch fabric provides otn switching, offering granular odu0 switch capacity up to 2. Otn over packet fabric protocol ofp implementation.
Otn subrate switching can improve the overall efficiency of optical networks significantly. This video includes greg ferro, brandon carroll, ivan pepelnjak. Executionversion schedule3 designandconstructionspecifications. Sonetsdh fabrics though tdm based otn fabrics and crossbar fabrics present clear advantages over packet.
The 5430 uses cienas flexiport technology to offer unprecedented flexibility and investment protection with programmable interfaces for. Integrated otnwdm switching architecture equipped with the. At sites b and c, an expandable otn switch is used to adddrop the necessary traffic inout of the 100g wavelength two 10g services added at site b, five 10g services dropped, and five added at site c. Advantages of cienas packetotn switched solutions include. Otn, and sonetsdh modules, plus an optional unified packet and optical transport network otn switch fabric. In case of conflict between the material contained in the tutorial and the material of the relevant recommendation the latter always prevails. Enabling otn switching over packetcell fabrics white paper proprietary and confidential to pmcsierra, inc. The switch fabric offers dedicated 100% otn, along with 100%. Otn family odu multiplexers for odu crossconnect tpoc244.
Centralized switch fabric tdm, packet, otn the flashwave 9500 packet onp integrates sonetsdh, packet, and otn switching within a centralized, nonblocking, fully redundant switch fabric. At just ru in height, the z77 combines massive capacity with modular functionality at a fraction of the cost of priorgeneration systems. Due to the plethora of 10m and 100m services in the marketplace, it would be inefficient to use an odu0 for a single 10m or even a 100m service. Otn was designed to provide support for optical networking using wavelengthdivision multiplexing wdm unlike its predecessor sonetsdh.
If these are high relative to a roadm then, although otn may have better efficiency in terms of the number of wavelengths used, the actual capital cost of otn switching may be higher than for dedicated wavelengths. The 5410 uses cienas flexiport technology to offer unprecedented flexibility and investment protection, with programmable interfaces for switching sonetsdh, otn. Bitrate transparency otn is an optical transport standard developed by the itut and first standardized in 1998. As a result, the timeslot interchange tsi technique of implementing sonetsdh switch fabrics is not directly applicable to otn switch fabrics. Microsemi enables terabit otn switching cards for flexible. The 6500 family of packetoptical platforms is designed to address todays unpredictable traffic patterns by delivering new levels of capacity, flexibility, resiliency, and openness required for a more adaptive network. Heavy reading december 2016 white paper sdh network modernization with otn 5 we describe both of these multiservice otn features in more detail below. As of december 2009, otn has standardized the following line. They transmit bits using various encoding and multiplexing techniques. Tj1600s is a 11ru shelf that has 7 fabric slots in the front and 12 slots on the rear side for fabric interconnect cards fic. Each slot within the universal flashwave 9500 shelf provides unrestricted access to any of the switch fabric technologies. Fics provide interconnection between the fabric cards and the interfaces in tj1600s. Otn overhead tpoc415 functions the tpoc415 contains a 100g sar function. First and foremost, otn switching in potp and otp platforms requires a centralized fabric in.
Optical transport network an overview sciencedirect topics. Native interfaces ethernet, voice, video, low speed data, io integrated network card. The otn signals at all datarates have the same frame structure but the frame period reduces as the datarate increases. Study of otn switching resource assignment policies in. The pt fabric packet transport fabric is part of the infinera tmseries that provides seamless integration of layer 1 and layer 2 metro ethernet functionality in a single platform. The system designer has several fabric options, including. First and foremost, otn switching in potp and otp platforms requires a centralized fabric in order to switch otn traffic from one line card to another. The system features an agnostic switch fabric capable of switching sonetsdhotn packet, cienas oneconnect intelligent control plane, and compact design, with 15 tbs switch capacity in a single bay. Otn was designed to provide support for optical networking using wavelengthdivision multiplexing wdm unlike its predecessor sonetsdh itut recommendation g. This could be a pure endtoend mpls network, or an ipmpls metrocore network with a carrier ethernet edge. Tpoc244 and tpoc314 application in otn crossconnect switch fabric tpoc 314 switch fabric sf e k msa 3 cfp sf e tpoc 244 xfp xfp ec k tpoc sf e 415i k msa 4 4 e cfp sfp sfp k 2 t o t u f r a m r o d u 0 1 2 2 e f e x t o u 3 m u l t i p l e x e r 4 x odu01flex odu2 mu ltip ex r 40g sar odu2e odu3 8 x 6. With 7 cards, the fabric shelf can support up to 48tbps of capacity.
Without otn switching, the traffic from these four customers would require four. A key benefit is that different service types and different bandwidth granularities can be encapsulated within the same. Otn based centralized switch fabric that will provide 100gbps network connectivity across every network optical connection of the backbone network. Packet switch provisioned separately from the tdm switch, the 1600 can quickly and easily adapt optimizing services. Dec 21, 2011 the otn protocol enable a single switch fabric to be used for both traffic types packets and timedivision multiplexed tdm otn to save cost for the operators.
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