MPLS: Resilient & Scalable? Interoperability Test Results

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1 MPLS: Resilient & Scalable? Interoperability Test Results Gabriele Schrenk Managing Director (EANTC)

2 Agenda! Introduction to EANTC! MPLS World Congress Interoperability Event! Paticipants! Final Network! Results! Showcase at the NIC

3 About EANTC Internationally recognized test center Vendor neutral network test facilities Independent Network Quality Assurance EANTC, Berlin-Germany Business Areas! Test and certification of network components for manufacturers! Test of high-speed enterprise / service provider networks and network design consultancy! Organizing Interop Events since 1995

4 MPLS World Congress Organized by EANTC and MPLS Forum in collaboration with ETSI and hosted by Upperside in Paris, February 2003

5 Test Areas Areas Covered:! Layer 3 VPN scalability and interoperability! Layer 2 VPN scalability and interoperability! Fast Reroute interoperability Protocols Covered:! RSVP-TE! LDP tunneled in RSVP-TE! RSVP-TE tunnels protected by Fast Rerouting! [OSPF-TE used as routing protocol]

6 The Participants

7 The Test Plan Based on experiences of the last interop event at Supercom, June 2002! Extended the test plan to cover new new areas! BGP/MPLS VPN + scalability! Ethernet/VLAN over MPLS + scalability! Detour and Facility backup Designed by the Interoperability Working Group of the MPLS Forum

8 Network Evolution! Testing was started in protocol-specific groups! Once one-on-one interoperability issues were resolved, the groups were connected to construct the network.

9 What Means Scalability Goals! Define a typical service provider scenario.! Have a realistic number of VPNs and routes per VPN at each PE.! Tunnel VPN traffic through the backbone (LDP over RSVP-TE) Non-Goals! Performance Tests! Achieve the maximum number of VPNs/routes

10 VPN Scalability a first! BGP/MPLS VPNs! 255 VPNs! 1000 routes per VPN in 10 VPNs, plus 10 routes per VPN in 245 VPNs! Distribution considered for HQ and remote sites Ethernet VLAN Martini Transport tunnels! 200 of 802.1q pseudo-wires per PE

11 VPN Scalability Test Scenarios

12 Fast Reroute Interoperability IETF s Fast Reroute draft! Two options! Facility (Bypass)! Detour! Reroute to backup LSP due to primary failure " Used TDM over IP application and load generators to verify the fast reroute time.

13 Fast Reroute Test Topology

14 The Final Network

15 Test Results

16 Achievements MPLS VPN Technology! Proved that Ethernet (Martini) VPNs and IP (RFC2547bis) VPNs are multi-vendor scalable to real-life carrier requirements! Very few interop issues; Martini and MPLS/BGP VPNs are becoming mature! Fast Reroute Technology! First public demo of Detour Backup worked; rerouting events were observed! Rerouting times always well below 50 ms for a single path!

17 Open Issues All devices should provide support for OSPF-TE. There were issues with LDP signaling.! There should be agreement to the label ranges that are used over Ethernet links.! There should be agreement on the label range on each device vs. label range per interface. Detour Backup! Current Fast Reroute draft has no recommendation for forward or backward compatibility of class types in FRR object. Facility Backup! Merge Point LSRs not always aware that they are on a protected path this is a possible signaling issue.

18 Conclusion! Demonstrated that MPLS VPN technology is interoperable.! Presented scalability of the protocols under test.! Demonstrated the two fast reroute modes in a common backbone.! Verified the fast reroute times (below 50ms on PoS). " Provided reassurance in MPLS networking technology

19 Outlook Next MPLS Forum Interop Event! Supercomm Atlanta June 2003! Will focus on VPLS, ATM/FR over MPLS and Fast Reroute CeBIT 2003 Network Information Center MPLS interop showcase! Layer 2 VPNs! Layer 3 VPNs! Enterprise Applications (Security, VoIP)

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21 Thank you! Visit our showcase! For further information, please contact me: EANTC AG