Agile Carrier Ethernet ACE Segment Routing Use Cases

Agile Carrier Ethernet - ACE Segment Routing Use Cases and SDN enabled Transport Alexander Preusche Consulting Systems Engineer February 10 2016 © 2014 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1

Agile Carrier Ethernet (ACE) Architecture Application Engineered Routing Simplification APP Interaction SDN Orchestration Consolidated VPN Services Automation Programmability Flexibility Security © 2014 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 2

Unified MPLS vs. Agile Carrier Ethernet Unified MPLS Agile Carrier Ethernet Separation into IGP Domains Yes Transport Path E 2 E Yes Intra-Area Path Provisioning IGP/LDP IGP with Segment Routing Inter-Area Path Provisioning BGP-3107 Dynamic via PCE Service Provisioning MP-BGP Programmed - Netconf/YANG & MP -BGP Redundancy LFA/R-LFA TI-LFA Traffic Engineering RSVP TE SR TE Application Engineered Routing N/A Yes WAE integration) © 2014(with Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3

https: //tools. ietf. org/html/draft-fils-springlarge-scale-interconnect-01 ACE © 2014 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 4

ACE Phase 1 – Static Topology Table on NSO Service (L 2/L 3 VPN) + SLA GUI/CLI/REST • • ACE NSO • NSO: G 1. Creates L 2/L 3 VPN 2. Creates SR Tunnel Interface Destination = B SLA „tag“ (e. g. 1) Sid-list 1001, 1002, 16040 3. Creates static route to Tunnel CE 1 A 192. 168. 0. 1 Sid 16010 AN f/Y NSO (Service Orchestration and transport configuration) NSO verifies if service provisioning is intra- or inter-area path NSO queries internal static table for sid-list (if inter-area) and programs transport path, along with service statically via Netconf/YANG (NED) to the edge devices. n co t e N Metro 1 GW 11 1001 A 1 GW 12 1001 Core GW 21 1002 GW 22 1002 Metro 2 B CE 2 192. 168. 0. 4 Sid 16040 © 2014 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 5

ACE Phase 2 – PCE with static SR-TE Tunnels Service (L 2/L 3 VPN) + SLA GUI/CLI/REST ACE NSO: 1. Creates L 2/L 3 VPN 2. Creates SR Tunnel Interface Destination = B SLA „tag“ (e. g. 1) PCE IP 3. Creates static route to Tunnel A 192. 168. 0. 1 Sid 16010 G PCE / nf o c t Ne Re CE 1 N YA ply 40 st ue 160 q Re 02, P 10 E PC 001, 1 ist d-l Si Metro 1 GW 11 1001 A 1 GW 12 1001 BGP-LS Core GW 21 1002 GW 22 1002 Metro 2 B CE 2 192. 168. 0. 4 Sid 16040 © 2014 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 6

ACE Phase 3 – PCE with On-demand SR NH Service (L 2/L 3 VPN) + SLA GUI/CLI/REST ACE NSO: 1. Creates L 3 VPN 2. Creates ODR Policy and tags BGP routes with ext. community Points to PCE for learned next hops 3. Node creates auto Tunnel to next hop Re CE 1 A 192. 168. 0. 1 Sid 16010 G PCE / nf o c t Ne ply N YA 40 st ue 160 q Re 02, P 10 E PC 001, 1 ist d-l Si Metro 1 GW 11 1001 A 1 GW 12 1001 C BGP-LS Core GW 21 1002 GW 22 1002 Metro 2 B CE 2 192. 168. 0. 4 Sid 16040 © 2014 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 7

Service (L 2/L 3 VPN) + SLA Service Portal NSO PCE BGP RR ALI 192. 168. 0. 1 BCN 192. 168. 0. 2 best effort MAD 192. 168. 0. 3 EPC VAL BCN 192. 168. 0. 11 192. 168. 2. 2 Mobile Aggregation low latency PGW 192. 168. 0. 4 MAD 192. 168. 2. 3 IP Core Mobile Core © 2014 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 8

© 2014 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 9