Appendix C — Architecture Quick-Reference
Prisma Access Component Summary
| Component | Full Name | Role | Connected To |
|---|---|---|---|
| MU-SPN | Mobile User — Service Processing Node | Terminates GlobalProtect VPN tunnels and Explicit Proxy connections | Endpoints, internet |
| RN-SPN | Remote Network — Service Processing Node | Terminates branch site IPSec tunnels | Branch CPEs |
| SC-CAN | Service Connection — Cloud Access Node | Terminates data centre / HQ IPSec tunnels | DC routers |
| Prisma Access Backbone | — | Internal high-speed backbone connecting all SPNs and CANs | MU-SPN ↔ RN-SPN ↔ SC-CAN |
| Panorama | — | Management plane — pushes config to Prisma Access via templates and device groups | All Prisma Access nodes |
| SCM | Strata Cloud Manager | SaaS-based next-gen management — alternative to Panorama | All Prisma Access nodes |
| Strata Logging Service | — | Cloud log storage and analytics (formerly Cortex Data Lake) | Prisma Access logging output |
Overall Prisma Access Topology
graph TD
EP["Endpoint<br/>(GlobalProtect)"]
BR["Branch CPE<br/>(IPSec)"]
DC["Data Centre<br/>Router (IPSec)"]
MU["MU-SPN<br/>(Mobile Users)"]
RN["RN-SPN<br/>(Remote Networks)"]
SC["SC-CAN<br/>(Service Connection)"]
BB["Prisma Access<br/>Backbone"]
INT["Internet / SaaS"]
PAN["Panorama / SCM<br/>(Management)"]
EP --> MU
BR --> RN
DC --> SC
MU --> BB
RN --> BB
SC --> BB
BB --> INT
BB --> SC
PAN -.->|Config push| MU & RN & SC
Mobile User Traffic Flow (GlobalProtect)
flowchart TD
EP["Endpoint<br/>(GP client)"]
PORTAL["GP Portal<br/>(MU-SPN)"]
GW["GP Gateway<br/>(MU-SPN)"]
POLICY["NGFW Policy<br/>Inspection"]
DEST["Internet / SaaS<br/>or DC via SC-CAN"]
EP -->|"1. Fetch portal config<br/>(FQDN:443)"| PORTAL
PORTAL -->|"2. Auth + gateway list"| EP
EP -->|"3. IPSec tunnel<br/>(IKEv2)"| GW
GW --> POLICY
POLICY --> DEST
Key numbers: - VPN IP pool: sized by regional deployment scope, not a flat per-location figure — /23 minimum for 1–2 regions, /19 minimum for 3+ regions, /23 minimum per region if allocating separately (corrected 2026-07-10 — see ch07/ch10 for the full sizing model) - Fallback locations: Hong Kong, Netherlands Central, US Northwest — confirmed for Panorama-managed deployments only; not asserted for SCM (see ch44)
Explicit Proxy Traffic Flow
flowchart TD
EP["Endpoint<br/>(browser + PAC)"]
PAC["PAC File<br/>(*.gpcloudservice.com)"]
PROXY["Explicit Proxy<br/>(MU-SPN :8080 SAML / :8081 Kerberos)"]
IDP["SAML IdP (Azure AD / Okta)<br/>or Kerberos infrastructure"]
DEST["Internet / SaaS"]
EP -->|"1. Fetch PAC"| PAC
EP -->|"2. HTTP/HTTPS<br/>via PROXY rule"| PROXY
PROXY -->|"3. SAML redirect or<br/>Kerberos auth"| IDP
IDP -->|"4. Auth assertion/ticket"| PROXY
PROXY -->|"5. Inspect + forward"| DEST
Key constraints: Port 8080 (SAML) or 8081 (Kerberos) · HTTP/HTTPS only · No private apps (corrected 2026-07-10 — see ch49/ch51: Kerberos is a current, GA authentication option alongside SAML, not "SAML only")
Remote Network Traffic Flow
flowchart TD
CPE["Branch CPE"]
SPN["RN-SPN<br/>(IPSec Termination Node)"]
BB["Prisma Access Backbone"]
DC["Data Centre<br/>(via SC-CAN)"]
INT["Internet"]
CPE -->|"IPSec tunnel<br/>(IKEv2)"| SPN
SPN --> BB
BB -->|"Branch → DC"| DC
BB -->|"Branch → Internet"| INT
Single tunnel: Static routes or BGP · ECMP: up to 4 tunnels, BGP required, Symmetric Return — QoS and static routes are not supported once ECMP is enabled, and the tenant scale limits are conditional (they apply only when a Local BGP IP Address is configured) — see ch41 for the full tiered figures and conditions, not repeated here
Service Connection Traffic Flow
flowchart TD
MU["Mobile User<br/>(MU-SPN)"]
RN["Branch<br/>(RN-SPN)"]
BB["Prisma Access Backbone"]
SC["SC-CAN"]
DC["Data Centre / HQ<br/>(Router)"]
MU --> BB
RN --> BB
BB --> SC
SC -->|"IPSec tunnel"| DC
BGP AS: Prisma Access uses AS 65534 · Supports Hot Potato and Cold Potato routing modes
Panorama Management Object Hierarchy
graph TD
SHARED["Shared<br/>(top-level device group)"]
SCGD["Service_Conn_Device_Group"]
RNGD["Remote_Network_Device_Group"]
MUGD["Mobile_User_Device_Group"]
EPGD["Explicit_Proxy_Device_Group"]
SHARED --> SCGD
SHARED --> RNGD
SHARED --> MUGD
SHARED --> EPGD
| Device Group | Service | Template Stack |
|---|---|---|
Service_Conn_Device_Group |
Service Connections | Service_Conn_Template_Stack |
Remote_Network_Device_Group |
Remote Networks | Remote_Network_Template_Stack |
Mobile_User_Device_Group |
Mobile Users (GP) | Mobile_User_Template_Stack |
Explicit_Proxy_Device_Group |
Explicit Proxy | Explicit_Proxy_Template_Stack |
This hierarchy is Panorama-specific. Strata Cloud Manager uses a genuinely different structure — Folders replace Device Groups and Snippets replace Templates (attachment-order precedence, not a stack) — see ch32/ch33 for the full mapping, not repeated here.
Predefined Templates — What Each Contains
| Template | Zone config | IKE/IPSec profiles | Auth profiles | Routing |
|---|---|---|---|---|
Service_Conn_Template |
No | Yes (DC CPE vendor profiles) | No | Static + BGP |
Remote_Network_Template |
Yes (create manually) | Yes | No | Static + BGP |
Mobile_User_Template |
Yes (create manually) | No | Yes (LDAP/SAML) | N/A |
Explicit_Proxy_Template |
No | No | Yes (SAML, Kerberos) | N/A |
Bandwidth and Scale Quick Reference
| Deployment | Per-node capacity | Max per tenant |
|---|---|---|
| Remote Network (single tunnel) | 2 Gbps | 25,000 sites |
| Remote Network (2-link ECMP) | 4 Gbps | 125 sites (with a Local BGP IP Address configured — see ch41) |
| Remote Network (4-link ECMP) | 8 Gbps | 62 sites (with a Local BGP IP Address configured — see ch41) |
| RN-SPN node | 1,000 Mbps | Auto-scaled |
| Mobile User VPN pool | /23 min. (1–2 regions) / /19 min. (3+ regions) | No fixed limit — see ch07/ch10 |
| Explicit Proxy | Port 8080 (SAML) / 8081 (Kerberos) | One PAC file per tenant |
Key Port Reference
| Protocol / Service | Port | Direction |
|---|---|---|
| IKE (IPSec negotiation) | UDP 500 | Branch/DC ↔ Prisma Access |
| IPSec NAT-T | UDP 4500 | Branch/DC ↔ Prisma Access |
| GlobalProtect portal | TCP 443 | Endpoint → MU-SPN |
| GlobalProtect gateway (IPSec) | UDP 4501 | Endpoint → MU-SPN |
| Explicit Proxy (SAML auth) | TCP 8080 | Endpoint → MU-SPN |
| Explicit Proxy (Kerberos auth) | TCP 8081 | Endpoint → MU-SPN |
| BGP | TCP 179 | CPE ↔ Prisma Access (inside IPSec) |
| Panorama management | TCP 3978 | Panorama → Prisma Access |
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