We’re excited to share the demos presented during our showcase at MPLS & SRv6 AI Net World Congress in Paris from March 25 to 27!
This demos highlights how we collaborate with industry leaders to address critical networking challenges with innovative, multi-vendor solutions.
5G xHaul design with SR-MPLS:
In this demo, Arista, Arrcus, Calnex, Ciena, Ericsson, Huawei, H3C, Juniper, Keysight, and Nokia demonstrate the results of the EANTC Multi-Vendor MPLS & SDN Interoperability Test Event at the MPLS & SRv6 AI Net World Congress at the MPLS & SRv6 AI Net World Congress 2025. This process includes a 5G xHaul network design employing SR-MPLS.
The setup consists of routers at the aggregation, pre-aggregation, and access layers, simulating a realistic multi-layer transport architecture. The video shows how L3VPN and VPWS services operate under differing traffic situations, implying the effectiveness of quality-of-service mechanisms. Low-latency traffic is prioritized using DSCP and 802.1p classification, with mappings into MPLS EXP for consistent treatment across the network.
In addition, the demo integrates the timing and synchronization aspects, using Precision Time Protocol (PTP) as a timing mechanism employing very precise clocking even if network congestion arises. This specific demo showcases a crucial component of the readiness of SR-MPLS to practically handle fronthaul and midhaul scenarios in actual 5G deployments.
The speakers in this demo include:
- Aditya Ramadurgam (Arrcus)
- Anton Elita (Juniper)
- Sayantan Pramanick (Keysight)
- Victor Alenin (Nokia)
EVPN-MPLS to EVPN-VXLAN L3 Gateway with D-PATH
In this demo, Arista, H3C, and Nokia demonstrate the results of the EANTC Multi-Vendor MPLS & SDN Interoperability Test Event at the MPLS & SRv6 AI Net World Congress 2025. This scenario focused on the Ethernet VPNs (EVPN) Gateway. SR-MPLS is most often deployed in the WAN area, whereas VXLAN is most often deployed inside the DC.
Therefore, EVPN-SR-MPLS to EVPN-VXLAN interworking gateway is a very typical use case in the real world. EANTC has tested this scenario for years. This test involved BGP Domain Path (D-PATH) extension this year to avoid loops and influence the BGP best route selection.
The speakers in this demo include:
- Mitch Vaughan (Arista)
Flex Algo, summarization, and UPA
In this demo, Arrcus, Ciena, Ericsson, Huawei, H3C, Juniper, Keysight, and Nokia demonstrate the results of the EANTC Multi-Vendor MPLS & SDN Interoperability Test Event at the MPLS & SRv6 AI Net World Congress 2025. This demo highlights the interoperability validation of key SRv6 features across a multi-vendor setup.
The test covers several advanced aspects of SRv6 networks, including loopback and SRv6 locator summarization on ABRs. It also verifies the correct operation of Unreachable Prefix Announcements (UPA), including UPA route generation at ABRs and proper reaction at ingress PEs. Additionally, the demo showcases support for Flexible Algorithms with validation of both static and TWAMP-based dynamic link delay measurements
The speakers in this demo include:
- Aditya Ramadurgam (Arrcus)
- Anirban Bhattacharya (Keysight)
- Krzysztof Szarkowicz (Juniper)
- Steven Koutstaal (Ericsson)
EVPN-VXLAN to EVPN VXLAN Tunnel Stitching for DCI with D-Path and UMR
In this demo, Arista, H3C, Juniper, and Nokia demonstrate the results of the EANTC Multi-Vendor MPLS & SDN Interoperability Test Event at the MPLS & SRv6 AI Net World Congress 2025. This scenario focused on Ethernet VPNs (EVPN) realized in VXLAN-based networks. VXLAN is typically found in data centers. When multiple VTEPs in multiple data centers are interconnected, the VXLAN tunnel numbers can be huge.
These networks can grow beyond the local area, requiring inter-domain routing of EVPN traffic. VXLAN tunnel stitching terminates the inter-domain tunnels at the DCGW, reducing the overall number of VXLAN tunnels. Without precaution, routing across multiple domains could end up in loops or lead to sub-optimal paths. The BGP Domain Path (“D-PATH”) extension avoids these situations by providing domain information at the inter-domain gateway in a standardized way. The Unknown MAC Route (UMR) further reduces the VTEPs ARP/MAC table pressures by advertising an all 0 MAC route pointed to DC GW, releasing the burn of mass withdrawal from the low-end VTEPs.
The speakers in this demo include:
- Alex Nichol (Arista)
Latency-Based Bidirectional Path Optimization
In this demo, Ciena, H3C, Nokia, and Keysight demonstrate the results of the EANTC Multi-Vendor MPLS & SDN Interoperability Test Event at the MPLS & SRv6 AI Net World Congress 2025. Validates the interoperability between the Nokia Network Services Platform (NSP) acting as a Path Computation Element (PCE), H3C CR16005E-F router, and Ciena 8140 Coherent Metro Router acting as Path Computation Clients (PCCs), and Keysight IxNetwork as an emulated Provider Edge (PE) router in latency-based bidirectional path optimization.
Firstly, each PCC delegated an LSP towards the other PCC to the PCE. On the PCE, these LSPs were grouped into a bidirectional path with strict symmetrical routing. An end-to-end latency threshold was also defined, which triggers a path optimization if exceeded. To simulate latency increase, static delay was added into the network through IGP (IS-IS) advertisements. The PCE detected the latency increase and computed two alternative LSPs between the PCCs, overcoming the high-latency path.
The speakers in this demo include:
- Diego Achaval (Nokia)
- Reza Rokui (Ciena)
5G xHaul design with SRv6
In this demo, Arrcus, Calnex, Ciena, Ericsson, Huawei, H3C, Juniper, Keysight, and Microchip demonstrate the results of the EANTC Multi-Vendor MPLS & SDN Interoperability Test Event at the MPLS & SRv6 AI Net World Congress 2025. A 5G x-Haul architecture with SRv6 was prepared to showcase the SRv6 and Timing Synchronization performance in such a scenario. The setup consisted of routers in the core, aggregation, pre-aggregation, and access layers.
From the SRv6 side, packet classification using the IPv6 Traffic Class and the Ethernet Priority Code Point were implemented in addition to IEEE 802.1CM Time-Sensitive Networking Profile A, which is specifically designed to optimize the fronthaul transport performance.
From the Time Synchronization side, the ITU-T G.8275.1 Precision Time Protocol (PTP) profile was primarily implemented in combination with Synchronous Ethernet (SyncE) and included a multitude of different features. The demo included time synchronization over 800GbE links, passive port monitoring, Interworking functions (IWF) from PTP profile ITU-T G.8275.1 to PTP profile ITU-T G.8275.2, and Asymmetry detection/measurement. The demo confirmed that even under heavy network oversubscription, with multiple best-effort and eCPRI flows generated simultaneously, time synchronization remained stable and well within the limits of 1100 ns, ensuring reliable timing for fronthaul operations.
Additionally, the one-way latency of eCPRI streams consistently met the required limits, staying within the 26 µs and 51 µs budgets defined by O-RAN WG9. These results validate the feasibility of SRv6-based transport in meeting the stringent latency requirements of 5G xHaul deployments.
The speakers in this demo include:
- Bjornar Forthun (Juniper)
- Kevin Godfrey (Calnex)
- Krzysztof Szarkowicz (Juniper)
- Sayantan Pramanick (Keysight)
Inter-AS Option C Using Anycast Next Hops
In this demo, Arista, Ciena, Ericsson, Huawei, H3C, Juniper, Keysight, and Nokia demonstrate the results of the EANTC Multi-Vendor MPLS & SDN Interoperability Test Event at the MPLS & SRv6 AI Net World Congress 2025. Demonstrating Inter-AS Option C with SR-MPLS using anycast next hops. The setup uses anycast Segment Identifiers (SIDs) within the BGP-SR framework, automatically allowing traffic to route to the nearest ASBR.
Egress PEs apply a label stack that includes service, node, and anycast labels to enable seamless, end-to-end SR-MPLS connectivity. Inter-AS Option C distinguishes transport from service VPN routes. ASBRs act as stitching points between domains and function as route reflectors when needed.
The speakers in this demo include:
- Anton Elita (Juniper)
- Christophe Compain (Arista)
- Malake Abidar (Keysight)
- Victor Alenin (Nokia)