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Pacific Northwest Gigapop NGN Overview. Kampala, Uganda Oct. 16th - 17th 2007. Previous Architecture. Properties of Previous Architecture. Primary/Secondary Layer-2 Core Layer-2 core is actually required due to IBGP filtering and next-hop reachability requirements
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Pacific Northwest GigapopNGN Overview Kampala, Uganda Oct. 16th - 17th 2007
Properties of Previous Architecture • Primary/Secondary Layer-2 Core • Layer-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 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 Views • 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 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
Properties of Next Generation Architecture • 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 Routing 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 Network 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 NetworkLayer-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 Participant 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 Additional 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