MPLS network built on ROADM based DWDM system using GMPLS signaling PIONIER experiences in GMPLS based next generation optical network and strategy for integration of MPLS based metropolitan academic networks Tomasz Szewczyk (PSNC)
Agenda • Background (NewMAN project) • DWDM transmission system • MPLS network • Summary and further work
Background (NewMAN project) Extension of 21 local teleinformatic scientfic networks - NewMAN • Extending the amount of equipment (purchase of network equipment) in 21 centers of Metropolitan Area Networks (MANs) in order to ensure and maintain the highest world standards in the scope of network infrastructure dedicated to scientific institutions connected with MANs all over Poland • Developing the network infrastructure to facilitate the connecting of subsequent scientific institutions to the MAN • Developing the network infrastructure to allow the connected institutions to use higher bandwidth links • Increasing the reliability of MANs Research International Advanced data transmission services for scientific and research community projects peerings MPLS backbone supporting user defined requirements Virtual HPC Labs Flexible DWDM transmission system Commodity Bandwidth Internet on demand
Background Metro networks and PIONIER • 21 independent Metropolitan Area Networks – Routing/traffic policies – Hardware platforms – Services for local academic and R&D communities – 5 HPC centers • PIONIER – Connecting MANs together – International connectivity – Services deployment, maintenance and coordination
Background Network upgrade summary • MPLS deployment in 21 scientific metropolitan area networks • Integrated switching environment – advanced MPLS services – IP/IPv6 routing • New DWDM system – 80-lambda – colorless, directionless, contensionless • Homogeneous optical system in PIONIER network basing on – Wavelength Switched Optical Networks – GMPLS control plane • Optical connections between all POPs (without 3R regeneration) • 40G and 100G ready • NMS with MPLS services monitoring support MPLS/IP platform DWDM platform Core switches 191 Nodes 79 Access switches 365 ROADMs 143 10 GE interfaces 4 416 10GE interfaces 404 1 GE interfaces 21 680
Agenda • Background (NewMAN project) • DWDM transmission system • MPLS network • Summary and further work
DWDM network Overview • Adva FSP3000R7 platform • Meshed backbone network • Colorless, directionless, contentionless ROADMs – 35 ROADM nodes • 8 – 2 degree • 146 directions • GMPLS control plane • Any-to-any services – 10GE transponders – 100G ready and tested – Without OEO conversion and 3R regeneration between end-points
DWDM network High Availability technologies (Adva)
DWDM network High Availability options (Adva control plane) • Restoration – Primary / Working (Control Plane restores primary tunnels) – Secondary / Protection (Control Plane restores secondary tunnels) – All Connections (Control Plane restores primary and secondary tunnels)
DWDM GMPLS control plane • Dynamic lambda provisioning with GMPLS signaling • Adva proprietary extension for ROADM equalization request – Performs hop by hop equalization on all nodes on the path – The equalization may take few minutes (~ 2-3) depending on number of ROADMs in the path • Adva specific properties – Currently there is no automatic fallback mechanism. The optical path is not re-established after network failure is repaired. This process requires manual request (by operator) • Network design – Optical channel (lambda) restoration performed manually depending on service requirements and type of network failure (estimated duration time).
Optical channels for reliable Internet access • Providing reliable access to Internet for MAN’s routers – Dante World Service end-point located in Poznan • 2 routers • 2 redundant links • 2 independent channels (lambdas) – Primary: Shortest path/latency – Backup: Alternative fiber path and resources • No DWDM protection and/or restoration required – DWDM resources usage similar to protection but additionally provides backup for routers • Only BGP policies applied on the routers
Agenda • Background (NewMAN project) • DWDM transmission system • MPLS network • Summary and further work
MPLS network • MPLS platform – Juniper MX series • MX-80 access • MX480, MX960 core • 1GE and 10GE core and access interfaces • 100G ready • Most advanced MPLS services available on new hardware platform – Traffic engineering (Fast Reroute, autobandwidth) – MEF services (E-Line, E-LAN, E-Tree) in MPLS network – Next Generation L3VPNs – Carrier of carriers – BGP labeled unicast
MPLS network design • Flexible capacity – 10GE for direct connectivity between MX switches – Dynamically extendable basing on • Current and estimated traffic load • User requirements • Full mesh of LSPs – Fast Reroute for resiliency – Autobandwidth for optimal resource usage • BGP used for services signaling – BGP labeled unicast for label exchange with MANs
Services deployment integration • Different services types deployed (reflecting users needs and demands) – Peering (IPv4/IPv6) – VPLS – L2/L3 VPNs • Common technology and signaling used – BGP for services – BGP labeled unicast for label exchange with MANs • E2E diagnostics and monitoring L3VPN VPLS L2VPN VPLS L3VPN L2VPN
MPLS network - Use cases Dedicated services for end users • PRACE project – L3VPN for polish members • Future Internet Engineering project – Transparent VPLS service • PLATON project services – Multidomain L3VPN for Science HD TV – VPLS for Archiving Services – VPLS for Campus Services management
Agenda • Background (NewMAN project) • DWDM transmission system • MPLS network • Summary and further work
Summary • DWDM flexibility – GMPLS signaling for optical path provisioning – Optimal fiber resources usage • Multiple paths available • TE based path selection – Support for alien waves – Path restoration used only when needed/required • MPLS network for advanced and reliable services – Implementation of “complex” MPLS signaling makes services implementation and maintenance more easier and faster in the future – Increased network resilience • Fast reroute, mesh topology • Network infrastructure ready for user needs
Further work Towards GMPLS • Investigation and early experiments on integration of packet switched with optical networks MPLS packet core MPLS GMPLS Agile optical core
Further works 100GE • Successfully tested 100GE lambda in DWDM system and interoperability with Juniper PTX and MX platforms – 100GE lambda provisioned in production network • ~ 650km – Coherent 100GE transponder used in DCM based system
Thank you!
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