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Connecting to the new Internet2 Network
What to Expect…
Steve CotterRick Summerhill
FMM 2006 / Chicago
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Outline
• Network Infrastructures
• Services on The Infrastructures
• Description of Circuit Services
• Control Plane
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The Network
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Optical Topology
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The Network
• Made up of four architecturally distinct infrastructures:
• the core infrastructure• the IP infrastructure• the Multiservice Switching infrastructure• the HOPI Testbed infrastructure
• Initially, circuit services across different architectures will be kept separate to maintain integrity
• As network matures, level of integration of infrastructures will increase
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Services
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IP Services
• Continuation of IP services offered on Abilene plus commercial peering and commodity transit
• 9 router locations: NYC, DC, Chicago, Atlanta, Houston, KC, LA, Salt Lake City, Seattle
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IP Services
• Connector builds out to PoP and I2 will carry connection to the nearest backbone router
• 10Gbps connection over core infrastructure• <10Gbps may go over multiservice switching
infrastructure
• Additional “opt-in” services will require separate BGP peerings, I2 suggests connect with:
• VLANs enabled (Ethernet connections)• Frame Relay DLCIs set up for SONET connections
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Commercial Peering Service
• As configured for beta trial, we anticipate using separate peerings between I2 and participating connectors
• Use VLANs or Frame Relay DLCI• Connect at 10Gbps to commercial exchange points
in Chicago, Palo Alto (PAIX), and possibly Ashburn
• Ongoing trial - NTAC and I2 staff are seeking community input on how to best offer this service
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Commodity Transit Service
• Offer optional Level3 commodity through IP connection at reduced rates
• Level3 will also allow direct 1GE connections to Level3 commodity network
• Will add other transit providers in the near future
• Separate BGP peering requiring VLANs or DLCIs
• NTAC Working Group providing input
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MPLS Services
• Internet2 network staff and the IU NOC will work with connectors to implement MPLS tunnels through the Internet2 Network on a case-by-case basis
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• Purpose is to allow experimentation in implementing and using dynamic circuits
• Experimental in a number of ways:• Footprint limited Internet2 Network footprint• Uses experimental control plane software to create
circuits and to interconnect with other domains using their control software
• Allows other networks to interconnect with it to test their interdomain circuit capabilities
HOPI Test Service
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HOPI Test Services
• Connect at I2 PoP with HOPI access point• Physical connection can have one or more
sub-circuits over 1G or 10G interface• Kinds of connections expected to change over time
as other devices added• Initially, use existing HOPI Force 10 Ethernet
switches
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HOPI Test Services
• Connections across HOPI are p-2-p Ethernet VLAN based circuits in increments of 100 Mbps
• User input devices must support 802.1q VLAN capabilities
• Requests for bandwidth can me made using:• GMPLS-style Peer Mode, GMPLS-style UNI Mode,
Web Service API or email/phone
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HOPI Test Services
• HOPI may be used to:• Test dynamic services developed by other domains
• Likely interconnect HOPI to test labs and with other organizations (regionals)
• Test applications prior to using them on dynamic or static circuit services (i.e. performance measuring software for dynamic networks)
• For more information, contact Rick Summerhill [email protected]
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Circuit Service
• Major aspects of the circuit service:• Physical connection between Internet2 and
user device (type and speed)• Circuit bandwidth (multiples of STS-1s)
Note: Speed of interfaces do not have to match
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Static Circuit Service Overview
• Longer lasting point-2-point circuits across network by connecting to Infinera or Ciena gear
• Infinera via 10GE or OC-192 interfaces• Across network can be either Ethernet or SONET framed
• Ciena via 1GE, 10GE or SONET OC-48, OC-192 interfaces
• Ethernet frames encapsulated in SONET using GFP• SONET can be channelized or not (OC-48 or OC-48c)• Across Network is always SONET in multiples of OC-1
• Provisioned by Internet2 NOC in coordination with user’s NOC.
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Multiservice Switch Description
• Each Ciena Multiservice Switch has two or more trunk side SONET circuits connecting it to other switches
• Client side can be Ethernet or SONET - 1GE, 10GE or OC-48, OC-192 interfaces
• Ethernet frames encapsulated in SONET using GFP
• SONET can be channelized or not (OC-48 or OC-48c)
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Dynamic Circuit Service Overview
• Shorter period (minutes to months ) point-2-point circuits across Network
• Connected to Ciena Multiservice Switching infrastructure
• Connect as single circuit to be switched or multiple circuits multiplexed over the physical connection
• Will use a set of waves on the core infrastructure dedicated to the dynamic wave service
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Dynamic Circuit Ethernet Requirements
• All Ethernet connectors must be capable of supporting 9K (MTU) payload frames.
• Ethernet participants may be tagged with VLANs or untagged, and VLANs may be switched internally on the transport.
• That is, a VLAN tag on one end need not be the same as a VLAN tag on the far end.
• Physical connections that use Ethernet must support 802.3x (flow control).
• Physical connections using Ethernet VLANs must support 802.1q (VLAN).
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Dynamic Circuit Details - Ethernet
• Provided as a p-2-p Ethernet circuit• Frames are encapsulated into SONET streams
using Generic Framing Protocol (GFP). • Encapsulation and decapsulation done at
ingress/egress • Streams divided into one or more OC-1 channels
using Virtual Concatenation (VCAT)• It is strongly recommended that all Ethernet
connectors support IEEE 802.1p (flow control)• Circuits between networks passed as GFP
encapsulated SONET
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• All SONET connectors must support VCAT and LCAS
• All SONET connectors providing Ethernet services must support GFP
Dynamic Circuit SONET Requirements
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Dynamic Circuit Details - SONET
• Provided in multiples of OC-1s• Incoming SONET can be channelized or not (i.e. OC-
48 or OC-48c)
• Connections across the Ciena MS infrastructure are always SONET
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Multiservice Switching Infrastructure Control Plane
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Multiservice Switch Control Plane Overview
• Control plane software will:• Manage the set up of dynamic
circuits• Keep track of bandwidth• Allow reservation of future
bandwidth• Authenticate users requesting
bandwidth• Report on network status
• Additional software integrated with Ciena software to provide additional capabilities
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Dynamic Circuit Control Plane
• Automated services are expected in the near future
• Will use DRAGON-style control plane capabilities• Control plane channels will be transported via IP,
and connectors will be offered several options for implementation and/or interaction with the dynamic control plane
• Initial deployments of control plane software will take place on HOPI test service before moving to the production network
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Dynamic Circuit Service Provisioning
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Dynamic Circuit Service Provisioning
• Uses control plane software to set up circuits• Initially only I2/NOC staff after requested by user• Eventually software added to allow circuits to be
created by user request• For cross-domain circuits, think of I2 Network
circuits as segments of longer p-2-p circuits• Cross-domain coordination via email/phone or
software to do automatically • Contact the NOC for circuit setup, NOC engineer
will be assigned to coordinate with other networks to create the required paths across the network.
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• Cross-domain connections require appropriate control plane software
• Internet2 will provide experimental software to regionals
Dynamic Circuit Service Provisioning
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Connecting Dynamic Circuits to Users
• Scenario #1: Two regionals and their users
• Physical connections to regionals made – we expect this will typically be an Ethernet connection that supports VLANS
• Each regional creates VLAN circuit to its user and makes connection to Internet2, then segments joined to create end-2-end circuit
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• Typically regional provides its own circuit multiplexing for its user and provides circuit to I2
• Multiplexed connection sent across I2 network and delivered to end regional
• Circuits set up and managed by control plane software
• May be done automatically across regional domains if using compatible control plane software
Connecting Dynamic Circuits to Users
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Connecting Dynamic Circuits to Users
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• Scenario #2: Connecting to similar services provided by other national or international networks
• By either direct connections or at exchange points• Control plane interface is similar to the I2/RON
model
• I2 working on user authorization and network information sharing with other networks
Connecting Dynamic Circuits to Other Networks
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Connecting Dynamic Circuits to Other Networks
• Using these interconnections and appropriate manual and automatic control of circuit switching, Internet2 will be able to be a partner in creating circuits from users in the United States to users connected to other international core networks
• Today, working to define service definitions and info sharing policies to enable this
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Applications
• TeraGrid
• High definition videoconferencing
• eVLBI Radio telescopes
• Remote medicine
• IP load shifting
• File transfer – Phoebus / VFER
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Control Plane Rollout
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Control Plane Rollout – Current Plan
• Initially, Ciena control plane will be used to create circuits by NOC from user requests
• Feb 2007 – web form available to request connection, initially filled by NOC
• Web form to interface with control plane software to make connections without NOC intervention
• Feb/Mar 2007 – software made available to regionals for them to provide switched circuits to users
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An Example of How to Connect to HOPI and the Internet2 Network - Phase 1
• Campus connects through RON using static VLANs and deploys VLSR on PC connected to switch (GMPLS control plane)
• Ethernet based• Connect to HOPI control plane
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Phase 2
• Add NARB (could be same PC)• Separates the campus domain from HOPI
domain• Now have separate control planes
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Phase 3
• When ready, RON implements GMPLS control plane
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Phase 4
• Move to the Multiservice Switching Infrastructure on the Internet2 Network
• There are many other possible alternatives
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52 Steve Cotter