Merging two wide-area networks is one of the most complex and risk-sensitive tasks in post-merger integration. Different carriers, incompatible SD-WAN platforms, conflicting routing policies, and overlapping IP address spaces all need to be resolved. RLM designs and manages the WAN integration so both organizations stay connected throughout the transition.
RLM provides independent, vendor-neutral advisory that gives deal teams and integration leaders the technology clarity they need to make informed decisions and execute with confidence.
We document both organizations' WAN architectures — MPLS topologies, SD-WAN platforms, internet breakout policies, and routing designs — identifying incompatibilities, integration paths, and the target unified architecture.
We map IP address spaces across both organizations, identify conflicts and overlaps, and design the re-addressing or NAT strategy that enables network interconnection without disrupting running applications.
When both organizations run different SD-WAN platforms, we evaluate consolidation options — comparing capabilities, contract positions, migration effort, and total cost to determine which platform survives or whether a new deployment makes sense.
We design the interim and target interconnection architecture — site-to-site VPNs, MPLS cross-connects, SD-WAN fabric extension, or cloud-based interconnection — enabling secure communication between both networks during and after integration.
We reconcile network security policies, firewall rule sets, and access control lists across both organizations — designing the unified security posture that maintains protection while enabling the cross-organizational traffic flows that integration requires.
We manage the phased WAN integration — routing changes, DNS migration, firewall updates, and carrier coordination — with rollback procedures at each stage to ensure business connectivity is never interrupted.
Start with a no-cost WAN integration assessment — we'll map both architectures and design the integration path.
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