Campus · WAN · SD-WAN · OT
Network infrastructure
A production network is not a shopping list of access switches. ianAsher designs the fabric, the WAN, and the ugly edges (plants, yards, oil-field sites) so applications stay up through a cutover.
Overview
Campus and data-center switching on Cisco Catalyst / Nexus and Arista EOS — leaf/spine when the traffic asks for it, collapsed core when it does not.
WAN, VPN, and SD-WAN chosen for the path, not the slide: ISR/Catalyst 8000, partner SD-WAN, or honest site-to-site when that is the right answer.
Segmentation, QoS, and multicast only where the application actually needs them. OT and SCADA stay off the office VLAN.
Documentation is part of the job: as-builts, change windows, and a named engineer who will still pick up after go-live.
Capabilities
- Campus access, distribution, and core (PoE budgets, stacking, optics as line items)
- WAN, SD-WAN, and industrial / oil-field networking
- Routing (BGP, OSPF, and the IGP you already run) with resilience that matches the SLA
- Segmentation, QoS, and multicast for voice, video, and plant traffic
- IoT and SCADA-aware designs that do not flatten OT onto corporate Wi-Fi
- As-built packages, lab validation, and cutover runbooks
Use cases
Texas campus refresh
IDF/MDF cleanup, Catalyst or EOS access, uplinks and optics quoted with the switch — not as a surprise.
Multi-site WAN
Branch, plant, and field locations with a WAN story that survives a fiber cut and a truck roll.
OT / oil-field
SCADA-adjacent networks, radios, and segmentation that keep pumps off the guest SSID.
Colo interconnect
Cross-connects and hybrid paths that make a Houston-area footprint feel like one environment.
Related catalog
Sample SKUs and sellable services in the categories that attach to this practice.
Cisco
Hardware
Catalyst 9300 48-port PoE+
C9300-48P-A
48× 1G PoE+ access with Network Advantage. The closet switch we actually spec for Texas campuses.
Quote
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Cisco
Hardware
Catalyst 9200L 24T 4G
C9200L-24T-4G
Fixed 24-port data access with 4× 1G uplinks. Quiet branch and IDF workhorse.
$1,980.00
Cisco
Hardware
Catalyst 9500 24Y4C
C9500-24Y4C
25G campus/core with 100G uplinks. Quote with optics — they are not a footnote.
Quote
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Cisco
Hardware
ISR 4331 Voice bundle
ISR4331-V/K9
Branch router with voice licensing path. Still the right answer when SD-WAN is marketing, not a requirement.
Quote
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Cisco
Hardware
Catalyst 8200L-1N-4T
C8200L-1N-4T
Edge routing / SD-WAN capable platform. Design session recommended before you buy the DNA/catalyst tax.
Quote
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Cisco
Hardware
Catalyst 9130AXI (B domain)
C9130AXI-B
Wi-Fi 6 internal-antenna AP for offices. Survey first; we will not sprinkle APs from a floor plan PDF.
$1,180.00
Ready to scope this?
Design session or a written quote — same Montgomery bench.