Low-Latency Care, Safe Devices, Zero-Trust Access — With Evidence
Clinical networks have to feel invisible—so clinicians can chart, image, consult, and care without friction.
SolveForce designs and operates Healthcare Networks that are HIPAA-aligned, Zero-Trust by default, and measured with SLOs—covering campus, clinics, imaging backbones, telehealth/RPM, and biomed/OT—backed by audit-grade evidence.
Connective tissue:
🖧 Fabric → /lan • /man • /wan • 🔀 SD-WAN → /sd-wan
🚪 Access → /nac • 🔐 ZTNA/SASE → /ztna / /sase
🖼️ Imaging & Storage → /san • 🌈 DCI → /wavelength
☁️ Clinical cloud → /cloud • 📦 Data → /data-warehouse • /etl-elt
🛡️ Security → /cybersecurity • 🔏 Privacy → /dlp
📊 Evidence/IR → /siem-soar • /incident-response • 🧪 TTX → /tabletop
💾 Continuity → /cloud-backup • /backup-immutability • /draas
🎯 Outcomes (Why SolveForce for Healthcare Networks)
- Clinical-grade performance — deterministic paths for EHR, PACS/VNA, voice/alarm, and telehealth.
- Zero-Trust access — 802.1X EAP-TLS + posture for staff/biomed; ZTNA for vendors and remote clinicians.
- Safe device footprints — biomed/OT isolation with microsegmentation and least-privilege flows.
- Telehealth/RPM that holds up — resilient WAN with brownout steering and QoS.
- Audit-ready — logs, SLOs, and change evidence you can hand to compliance and the board.
🧭 Scope (What We Build & Operate)
- Campus/CAN & Clinics — EVPN/VXLAN leaf/spine; Wi-Fi 6/6E/7 tuned for clinical roaming; PoE for APs/phones/RTLS. → /lan
- WAN/Backhaul — dual underlays (fiber + LTE/5G; satellite tertiary), SD-WAN app-aware steering; Anycast edges. → /sd-wan
- Imaging backbones — DICOM, PACS/VNA over Wavelength/Lit with jumbo MTU; SAN/NVMe for rendering. → /wavelength • /san
- Secure access — NAC for ports/SSIDs, ZTNA for private apps & vendors, SASE for web/SaaS. → /nac • /ztna • /sase
- Voice & life-safety — SIP trunks, E911/NG911, nurse call/paging QoS lanes; POTS-replacement for elevators/alarms. → /sip-trunking • /pots
- Data & cloud — curated feeds to warehouse/lake; FHIR/HL7 pipelines; telehealth media policies. → /data-warehouse • /etl-elt
- Observability & evidence — EUEM (end-user experience), SLO boards, NAC/ZTNA decisions, DICOM/SAN KPIs → SIEM/SOAR. → /siem-soar
🧱 Building Blocks (Spelled Out)
- Identity & posture at the edge
- 802.1X EAP-TLS for staff and managed devices; MDM/UEM + EDR posture; guest & contractor isolation. → /mdm • /mdr-xdr
- ZTNA per app/session for clinicians & vendors; no flat VPNs.
- Segmentation & microseg
- Clinical, biomed/OT, admin, guest, and research enclaves; L3/L7 allow-lists for pumps/monitors, imaging devices, RTLS, lab analyzers. → /microsegmentation
- QoS & deterministic paths
- EF lanes for voice/alarms; assured lanes for EHR & PACS; packet duplication/FEC for poor circuits; DSCP preservation end-to-end.
- DNS/DHCP/IPAM & name hygiene
- Split-horizon DNS; anycast resolvers; DHCP with option sets for biomed; IPAM governance to avoid conflicts/outages.
- Vendor access control
- ZTNA portals with per-app scopes, time-boxed accounts, session recording (PAM), and watermarking where needed. → /pam
- Boundary protection
- WAF/Bot for patient/portal APIs; DDoS stance; signed URLs; DLP for transcripts/reports. → /waf • /ddos • /dlp
🧰 Reference Architectures (Choose Your Fit)
A) Hospital Campus (Zero-Trust CAN)
Leaf/spine core; NAC EAP-TLS; microseg for clinical/biomed/guest; ZTNA for vendors; Anycast PACS viewers; SAN + metro DCI to VNA.
B) Multi-Clinic WAN (SD-WAN + Telehealth)
Dual underlays per site; brownout steering; QoS for voice/video; SASE for SaaS; private on-ramps for cloud EHR/analytics.
C) Imaging Backbone (PACS/VNA)
Wavelength/Lit links with jumbo MTU; MACsec/L1 encryption; DICOM cache/shield; snapshot/replicate with immutability.
D) Telehealth & RPM Edge
Edge POPs, prioritized media lanes; ZTNA for clinicians; DLP for PHI in transcripts; LTE/5G/satellite tertiary for rural coverage.
E) Biomed/OT Isolation
Device profiling; function-based enclaves; allow-listed flows to EHR/PACS; NAC quarantine; NDR for anomalies on sensitive VLANs.
📐 SLO Guardrails (Healthcare Network Targets)
| Service / KPI (p95 unless noted) | Target (Recommended) |
|---|---|
| EHR app latency (client→app) | ≤ 50–120 ms regional |
| PACS viewer open → first image | ≤ 1.5–3.0 s |
| Imaging DCI latency (one-way, metro) | ≤ 1–2 ms |
| Clinical Wi-Fi assoc + DHCP | ≤ 2–4 s |
| Voice MOS (wideband) | ≥ 4.1 |
| RTLS location latency | ≤ 1–3 s (use-case dependent) |
| Alarm/event propagation | ≤ 500 ms to HMI/console |
| Clinic WAN availability (dual paths) | ≥ 99.95% |
| ZTNA attach (clinician/vendor) | ≤ 1–3 s |
| Evidence completeness (audits/IR) | = 100% |
SLO breaches auto-open tickets and trigger SOAR actions (reroute, duplicate packets, scale capacity, rollback policy). → /siem-soar
🔒 Compliance & Safety
- HIPAA/HITECH — minimum-necessary access, encryption in transit/at rest, immutable logs; BAAs for cloud/SaaS.
- 42 CFR Part 2 — stronger privacy for SUD data (labels, extra controls).
- NIST 800-66 / 800-53 mapping — AC/IA/AU/CM/IR families tied to network controls.
- Joint Commission / E911/NG911 — voice/location testing & artifacts.
- PCI DSS (if payments) — CDE segmentation, tokenization, WAF/Bot, key custody.
📊 Observability & Evidence
- EUX — EHR login phases, PACS fetch timing, Wi-Fi roam stats, voice MOS/Jitter/Loss.
- Security — NAC admits/CoA, ZTNA decisions, PAM sessions, WAF/DLP hits, NDR anomalies.
- Infra — link latency/jitter/loss, DCI light levels/FEC/BER, SAN IOPS/latency.
All exported to SIEM; SOAR automates isolate/rollback/notify with approvals. → /siem-soar
💾 Continuity & Incident Response
- Immutable backups (Object-Lock) for configs & clinical systems; DRaaS tiers (pilot-light → hot).
- TTX drills for ransomware, link loss, vendor compromise; attach AARs to compliance packs.
→ /backup-immutability • /draas • /tabletop
🛠️ Implementation Blueprint (No-Surprise Rollout)
1) Protect surface — EHR/PACS/VNA/LIS/RIS, voice/paging, RTLS/alarms, biomed/OT, portals/APIs.
2) Identity & posture — SSO/MFA, NAC 802.1X EAP-TLS, MDM/UEM + EDR baselines; ZTNA for vendors.
3) Segmentation — clinical/biomed/admin/guest enclaves; microseg intents → policies; egress allow-lists.
4) WAN & QoS — dual underlays per site; EF lanes; packet dup/FEC; Anycast edges.
5) Imaging & DCI — wavelength/lit with MACsec/L1; jumbo MTU; SAN tuning.
6) Telehealth/RPM — media policy, SASE for web, ZTNA for private apps; LTE/5G/satellite tertiary.
7) Observability — EUX & network SLO boards; SIEM/SOAR wiring; alarms for SLO drift.
8) Continuity — immutable backups; DR runbooks; TTX schedule with evidence.
9) Operate — monthly posture & SLO reviews; quarterly DR drills; publish wins & RCAs.
✅ Pre-Engagement Checklist
- 🧭 In-scope systems (EHR, PACS/VNA, voice, alarms/RTLS, biomed/OT, portals).
- 🔐 Identity posture (SSO/MFA), device posture (MDM/UEM + EDR), vendor access (ZTNA/PAM).
- 🗺️ Segmentation map; NAC status; biomed inventory/profiles.
- 🌐 WAN underlays (fiber, LTE/5G, satellite), diversity & DCI options.
- 🧮 Imaging/SAN/MTU requirements; DICOM caches; performance SLOs.
- ☁️ Cloud EHR/analytics on-ramps; DNS & egress policy.
- 💾 Backup/DR posture; Object-Lock scope; drill cadence.
- 📊 SIEM/SOAR destinations; report cadence; audit calendar.