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IRB has been tested for a long time under an IPv4 environment in our event. However, the current networks are moving towards IPv6 today. Therefore, we have tested the essential step to move to IPv6: dual-stack. This year, we have tested dual-stack IRB on the SR-MPLS test bed with VLAN-based services in symmetric IRB mode. The underlay and overlay remain IPv4. However, the IRB interfaces enabled both IPv4 and IPv6. We sent both IPv4 and IPv6 traffic simultaneously, along with unicast routing and bridging traffic, with Keysight IxNetwork. Traffic has been sent/received from one DUT, and all other DUTs serve as the remote end for sent/received traffic. We observed no packet loss, and bridging and routing traffic worked as expected. |
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[[~[~[Figure 46: Dual-stack symmetric IRB VLAN-based interfaces~>~>image:486469475713875969_MPLS-1.73.png~|~|alt="Figure 46" width="600"~]~]>>attach:486469475713875969_MPLS-1.73.png||target="_blank"]] |
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|[[< Previous>>doc:EVPN-VPLS Layer 2 Attribute Extended Community]]|[[Next ~>>>doc:Interoperability between Symmetric and Asymmetric VLAN-Based Integrated Routing and Bridging]] |
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{{include reference="Main.EANTC Transport & Cloud Networks Interop Test Report 2026.Sidebar Nav"/}} |
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