Modernization
Modernize Cisco networks without outage surprises.
Review topology, code levels, hardware lifecycle, uplinks, failover behavior, routing, wireless dependencies, and migration sequencing before change windows begin.
Cisco network consulting
Cisco network consulting for complex production environments.
Cisco network design, troubleshooting, modernization, and documentation across campus, data center, WAN, wireless, firewall, and segmentation environments.
Troubleshooting
Find root cause across network, firewall, VMware, storage, and applications.
Useful when symptoms are intermittent, vendor handoffs are unclear, or every team can prove the problem is somewhere else.
Documentation
Make the network understandable enough to operate.
Produce diagrams, VLAN and routing notes, traffic-flow assumptions, configuration standards, cutover plans, and known-risk documentation.
Cisco service areas
Senior Cisco engineering for campus, data center, WAN, wireless, and segmentation.
The work is scoped around business impact, existing constraints, operational ownership, and the validation needed before production traffic depends on the change.
Routing & Switching
Cisco Catalyst and Nexus switching, VLANs, trunks, STP, EtherChannel, vPC, OSPF, BGP, HSRP/VRRP, QoS, and Layer 2/Layer 3 design for campus and data center networks.
Campus Network Modernization
Access, distribution, and core refresh planning; closet cleanup; PoE readiness; wireless access dependencies; 802.1X/NAC readiness; and migration sequencing with rollback paths.
Nexus & Data Center Networking
Data center switching, vPC design, virtualization network dependencies, storage and backup traffic paths, east-west traffic, redundant fabrics, and cutover planning.
WAN, SD-WAN & Branch Connectivity
Cisco WAN edge, branch routing, SD-WAN planning, circuit migration, failover behavior, cloud/SaaS access patterns, and practical operational handoff.
Wireless & Access Networks
Cisco wireless design, controller/AP lifecycle, SSID design, roaming, guest access, secure access, and troubleshooting for user experience and facility coverage.
Segmentation & Firewall Path Review
VLAN/VRF segmentation, ACLs, firewall zones, VPN paths, NAT dependencies, policy cleanup, and traffic-flow documentation that reduces lateral movement and change risk.
Cisco + VMware crossover
When VMware depends on the physical network, shallow troubleshooting gets expensive.
Oathgate understands both sides of the handoff: Cisco switching, routing, segmentation, and the VMware workloads and storage paths that depend on them.