update k8s support to 1.32 + Cilium L2 Announcement rfe

docs/developer_guide/networking/GlobalArchitectureSample.md

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+# Enterprise Network Architecture Reference Design
+
+[![Architecture Status](https://img.shields.io/badge/Architecture-Production-success)](https://status.enterprise.com)
+[![Security Posture](https://img.shields.io/badge/Security-Zero%20Trust-blue)](https://security.enterprise.com)
+[![Compliance](https://img.shields.io/badge/Compliance-SOC2%20|%20ISO27001%20|%20HIPAA%20|%20PCI-blue)](https://compliance.enterprise.com)
+[![Documentation](https://img.shields.io/badge/Documentation-Current-green)](https://netdocs.enterprise.com)
+
+This reference architecture demonstrates an enterprise-grade global network infrastructure implementing zero-trust security, cloud-native principles, and automated operations. It serves as both a practical implementation guide and an educational resource for network engineers across all expertise levels.
+
+## Architecture Overview
+
+### Global Infrastructure Layout
+
+```mermaid
+flowchart TB
+    subgraph Global_Edge ["Global Edge Infrastructure"]
+        direction LR
+        CDN["Global CDN"]
+        GSLB["Global Load Balancing"]
+        DDoS["DDoS Protection"]
+        WAF["Web Application Firewall"]
+    end
+
+    subgraph Cloud_Native ["Cloud Native Infrastructure"]
+        direction TB
+        subgraph Public_Cloud ["Multi-Cloud Presence"]
+            Azure["Azure Stack"]
+            AWS["AWS Stack"]
+            GCP["GCP Stack"]
+        end
+
+        subgraph Service_Mesh ["Service Mesh"]
+            Istio["Istio Control Plane"]
+            Envoy["Envoy Proxy Layer"]
+            mTLS["mTLS Security"]
+        end
+    end
+
+    subgraph Edge_Computing ["Edge Computing Layer"]
+        direction TB
+        subgraph Edge_Sites ["Regional Edge Sites"]
+            Edge1["US Edge"]
+            Edge2["EU Edge"]
+            Edge3["APAC Edge"]
+        end
+
+        subgraph IoT_5G ["IoT & 5G Infrastructure"]
+            FiveG["5G Core Network"]
+            MEC["Mobile Edge Computing"]
+            IoT["IoT Gateway"]
+        end
+    end
+
+    subgraph Enterprise_Core ["Enterprise Core"]
+        direction TB
+        subgraph DC1 ["Primary DC - US East"]
+            DC1_Net["Network Core"]
+            DC1_Compute["Compute Layer"]
+            DC1_Storage["Storage Layer"]
+        end
+
+        subgraph DC2 ["Secondary DC - EU Central"]
+            DC2_Net["Network Core"]
+            DC2_Compute["Compute Layer"]
+            DC2_Storage["Storage Layer"]
+        end
+    end
+
+    Global_Edge --> Cloud_Native
+    Global_Edge --> Edge_Computing
+    Cloud_Native <--> Enterprise_Core
+    Edge_Computing <--> Enterprise_Core
+```
+
+### Physical Infrastructure Components
+
+```mermaid
+flowchart TB
+    subgraph DC ["Data Center Physical Layer"]
+        direction TB
+
+        subgraph Network ["Network Infrastructure"]
+            Core["Core - Cisco 9500"]
+            Spine["Spine - Nexus 9364C"]
+            Leaf["Leaf - Nexus 93180YC-EX"]
+            ToR["ToR - Nexus 9300"]
+        end
+
+        subgraph Compute ["Compute Infrastructure"]
+            Blade["Blade Chassis"]
+            HCI["HCI Clusters"]
+            GPU["GPU Clusters"]
+        end
+
+        subgraph Storage ["Storage Infrastructure"]
+            SAN["SAN Fabric"]
+            NAS["NAS Arrays"]
+            Object["Object Storage"]
+        end
+
+        subgraph Interconnect ["Interconnection"]
+            DCI["DCI Links"]
+            IXP["IXP Connectivity"]
+            DWDM["DWDM Systems"]
+        end
+    end
+
+    Core --> Spine
+    Spine --> Leaf
+    Leaf --> ToR
+```
+
+## Network Segmentation & Security
+
+### Zero Trust Security Architecture
+
+```mermaid
+flowchart TB
+    subgraph Security ["Security Framework"]
+        direction TB
+
+        subgraph Access ["Access Control"]
+            IdP["Identity Provider"]
+            MFA["MFA Service"]
+            PAM["Privileged Access"]
+        end
+
+        subgraph Perimeter ["Perimeter Security"]
+            NGFW["Next-Gen Firewall"]
+            IPS["IPS/IDS"]
+            WAF["Web App Firewall"]
+        end
+
+        subgraph Micro ["Microsegmentation"]
+            NSX["NSX Security"]
+            Calico["Calico Policy"]
+            VPC["VPC Security"]
+        end
+
+        subgraph Crypto ["Cryptography"]
+            KMS["Key Management"]
+            HSM["Hardware Security"]
+            PKI["PKI Infrastructure"]
+        end
+    end
+
+    Access --> Perimeter
+    Perimeter --> Micro
+    Micro --> Crypto
+```
+
+## Manufacturing & OT Networks
+
+### Industrial Network Architecture
+
+```mermaid
+flowchart TB
+    subgraph Industrial ["Industrial Network"]
+        direction TB
+
+        subgraph L5 ["Enterprise Network - L5"]
+            ERP["ERP Systems"]
+            MES["MES Systems"]
+        end
+
+        subgraph L4 ["Site Operations - L4"]
+            SCADA["SCADA Systems"]
+            Historian["Historians"]
+        end
+
+        subgraph L3 ["Area Control - L3"]
+            PLC["PLC Control"]
+            HMI["HMI Systems"]
+        end
+
+        subgraph L2_1 ["Process Network - L2/1"]
+            Sensors["Sensors"]
+            Actuators["Actuators"]
+            IO["I/O Systems"]
+        end
+
+        DMZ["Industrial DMZ"]
+    end
+
+    L5 --- DMZ
+    DMZ --- L4
+    L4 --- L3
+    L3 --- L2_1
+```
+
+## Network Operations & Automation
+
+### DevOps Workflow
+
+```mermaid
+flowchart LR
+    subgraph Automation ["Network Automation"]
+        direction TB
+
+        subgraph IaC ["Infrastructure as Code"]
+            Terraform["Terraform"]
+            Ansible["Ansible"]
+            Puppet["Puppet"]
+        end
+
+        subgraph CI_CD ["CI/CD Pipeline"]
+            Git["Git Repos"]
+            Jenkins["Jenkins"]
+            ArgoCD["ArgoCD"]
+        end
+
+        subgraph Testing ["Network Testing"]
+            Unit["Unit Tests"]
+            Int["Integration Tests"]
+            E2E["E2E Tests"]
+        end
+    end
+
+    IaC --> CI_CD
+    CI_CD --> Testing
+```
+
+## Observability & Monitoring
+
+### Monitoring Stack
+
+```mermaid
+flowchart TB
+    subgraph Observability ["Observability Platform"]
+        direction TB
+
+        subgraph Metrics ["Metrics Collection"]
+            Prometheus["Prometheus"]
+            SNMP["SNMP Collection"]
+            Telemetry["Streaming Telemetry"]
+        end
+
+        subgraph Logs ["Log Management"]
+            ELK["ELK Stack"]
+            Splunk["Splunk"]
+            Loki["Loki"]
+        end
+
+        subgraph Tracing ["Distributed Tracing"]
+            Jaeger["Jaeger"]
+            Zipkin["Zipkin"]
+            OpenTelemetry["OpenTelemetry"]
+        end
+
+        subgraph Visualization ["Dashboards"]
+            Grafana["Grafana"]
+            Kibana["Kibana"]
+            Custom["Custom Dashboards"]
+        end
+    end
+
+    Metrics --> Visualization
+    Logs --> Visualization
+    Tracing --> Visualization
+```
+
+## Wireless & Mobile Infrastructure
+
+### 5G and WiFi Integration
+
+```mermaid
+flowchart TB
+    subgraph Wireless ["Wireless Infrastructure"]
+        direction TB
+
+        subgraph WiFi ["Enterprise WiFi"]
+            WiFi6E["WiFi 6E APs"]
+            WLC["Wireless Controllers"]
+            WIPS["Wireless IPS"]
+        end
+
+        subgraph FiveG ["5G Infrastructure"]
+            RAN["5G RAN"]
+            Core["5G Core"]
+            MEC["Mobile Edge Computing"]
+        end
+
+        subgraph IoT ["IoT Connectivity"]
+            LoRa["LoRaWAN"]
+            BLE["Bluetooth LE"]
+            Zigbee["Zigbee"]
+        end
+    end
+
+    WiFi --- FiveG
+    FiveG --- IoT
+```
+
+## Disaster Recovery & Business Continuity
+
+### Recovery Architecture
+
+```mermaid
+flowchart TB
+    subgraph DR ["Disaster Recovery"]
+        direction TB
+
+        subgraph Primary ["Primary Site"]
+            P_Net["Network"]
+            P_Compute["Compute"]
+            P_Data["Data"]
+        end
+
+        subgraph Secondary ["Secondary Site"]
+            S_Net["Network"]
+            S_Compute["Compute"]
+            S_Data["Data"]
+        end
+
+        subgraph Cloud_DR ["Cloud DR"]
+            C_VPC["Cloud VPC"]
+            C_Storage["Cloud Storage"]
+            C_Compute["Cloud Compute"]
+        end
+    end
+
+    Primary <-->|"Sync"| Secondary
+    Primary -.->|"Backup"| Cloud_DR
+    Secondary -.->|"Backup"| Cloud_DR
+```
+
+## Implementation Guidelines
+
+### Prerequisites
+- Network engineering expertise (CCNA/CCNP/CCIE)
+- Cloud platform experience
+- Security certification (CISSP/CCSP)
+- Automation skills (Python/Ansible)
+- Infrastructure as Code experience
+
+### Documentation
+- [Network Architecture Guide](docs/architecture.md)
+- [Security Implementation](docs/security.md)
+- [Automation Framework](docs/automation.md)
+- [Operations Playbook](docs/operations.md)
+
+## Compliance Framework
+
+### Standards Implementation
+- SOC 2 Type II Controls
+- ISO 27001 Framework
+- HIPAA Security Rule
+- PCI DSS Requirements
+- NIST Cybersecurity Framework
+- GDPR Data Protection
+
+### Automated Compliance
+- Continuous compliance monitoring
+- Automated control validation
+- Real-time compliance reporting
+- Policy enforcement automation
+- Audit trail logging
+
+## Support & Operations
+
+### Resources
+- [Network Operations Center](https://noc.enterprise.com)
+- [Security Operations Center](https://soc.enterprise.com)
+- [Engineering Wiki](https://wiki.enterprise.com)
+- [API Documentation](https://api.enterprise.com)
+
+### Teams
+- Network Engineering
+- Security Operations
+- Cloud Platform
+- Automation & DevOps
+- Compliance & Governance
+
+## License
+
+This architecture is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details.
+
+---
+
+*Maintained by Enterprise Network Architecture Team*