Pacific Northwest GigapopPacific Northwest GigapopNGN OverviewNGN Overview

Kampala, Uganda

Oct. 16th - 17th 2007

Previous ArchitecturePrevious Architecture

Properties of Previous Properties of Previous ArchitectureArchitecture

Primary/Secondary Layer-2 CoreLayer-2 core is actually required due to IBGP

filtering and next-hop reachability requirements

Different routing tables instantiated on different physical hardware

Few 10 Gbps capable devices No formal Layer-2 service offering

Previous Routing ViewsPrevious Routing Views

Two Route Views Full -- Containing:

Participants R&E Peers Internet2 NLR Commodity Peers Commodity Transit

Commercial -- Containing: Participants R&E Peers NLR Commodity Peers Commodity Transit

Properties of Previous Routing Properties of Previous Routing ViewsViews

Overlapping route types (e.g. Commodity Transit exists in both)

Primarily differentiated by inclusion or exclusion of Internet2 routes

Makes use of route servers for routing table aggregation

Uses IBGP filtering for creation of additional routing tables (instantiated on different hardware)

Previous Layer-3 ServicesPrevious Layer-3 Services

Full Participant Contains: Participants, R&E Peers, NLR, I2, Com Peers, Com Trans Built via unfiltered IBGP feeds from the “Full” route servers

Commodity Participant Contains: Participants, R&E Peers, NLR, Com Peers, Com Trans Built via unfiltered IBGP feeds from the “Com” route servers

R&E Participant Contains: Participants, R&E Peers, NLR, I2, Com Peers Built via filtered IBGP feeds from the “Full” router servers

Internal Participant Contains: Participants, R&E Peers, NLR, Com Peers Built via egress EBGP filtering of the Commodity Participant view

Next Generation Network Next Generation Network ArchitectureArchitecture

Properties of Next Generation Properties of Next Generation ArchitectureArchitecture

Layer-3 Routed Core Platform and topology agnostic routing tables

Any service on any router Almost all devices support 10 Gbps interfaces Core can migrate to 40 Gbps as needed Formal Layer-2 aggregation and grooming

infrastructure Completely updated hardware

Support for up to 1.2 million IPv4 routes

Next Generation Network Next Generation Network Routing ViewsRouting Views

Four Route Views Commercial -- Containing:

Participants Commodity Peers Commodity Transit

Research -- Containing: Participants R&E Peers

Internet2 -- Containing: Participants Internet2

NLR -- Containing: Participants Internet2

Internet2 AUP is handled by inclusion/exclusion of INTERNET2 VRF

GP participants themselves have control over which national research backbone they wish to send/receive traffic

Properties of Next Generation Properties of Next Generation Network Routing ViewsNetwork Routing Views

No overlapping route types (except Participants which exist in both)

Differentiated by external network connections with a research focus versus a non-research focus

Uses MPLS Layer-3 VPNs to instantiate the two routing table views, anywhere in the topology on any platform

Uses EBGP filtering to create additional routing table views on a per-participant basis

Next Generation NetworkNext Generation NetworkLayer-3 ServicesLayer-3 Services Full Participant

Contains: Participants, R&E Peers, NLR, I2, Com Peers, Com Trans Unfiltered EBGP feeds from both “Commercial” and “Research” VPNs

Commodity Participant Contains: Participants, R&E Peers, NLR, Com Peers, Com Trans Unfiltered EBGP feed from the “Commercial” VPN Filtered EBGP feed from the “Research” VPN (I2 filtered)

R&E Participant Contains: Participants, R&E Peers, NLR, I2, Com Peers Filtered EBGP feed from the “Commercial” VPN (Com Trans filtered) Unfiltered EBGP feed from the “Research” VPN

Internal Participant Contains: Participants, R&E Peers, NLR, Com Peers Filtered EBGP feed from the “Commercial” VPN (Com Trans filtered) Filtered EBGP feed from the “Research” VPN (I2 filtered)

Comparison of Layer-3 Comparison of Layer-3 Participant Connectivity ModelsParticipant Connectivity Models

Existing route views are provide via one consolidated connection for all destinations

NGN route views use two VPNs provisioned over separate logical links using 802.1q or Frame Relay Encapsulation

Next Generation Network Next Generation Network Additional FeaturesAdditional Features

Commercial and Research VPNs are provided to the participant separately to allow for differential handling

Layer-2 lightpath grooming can be provided with connectivity to PacificWave, NLR FrameNet, and Internet2

Intermediate Ethernet aggregation for shared access Layer-3 services

Thank YouThank You