Implementation Roadmap¶

Phase 6: GCP Vertex AI + Azure SASE (16 Weeks)¶

Week 1-2: Planning & Design - [ ] GCP project setup (abhavtech-wxcc-prod) - [ ] Azure subscription setup (ExpressRoute, Virtual WAN) - [ ] Order ExpressRoute circuits (3× 10G, 12-week lead time) - [ ] Order Azure Virtual WAN hub provisioning - [ ] Design review with Cisco TAC (SD-WAN integration)

Week 3-4: GCP Foundation - [ ] Create GCP VPCs, subnets (not needed for WxCC, but for future) - [ ] Configure VPC Service Controls perimeter - [ ] Set up Private Service Connect endpoints - [ ] Configure Cloud DLP API - [ ] Enable Vertex AI APIs

Week 5-8: GCP Vertex AI Implementation - [ ] Deploy CCAI Platform (Contact Center AI) - [ ] Configure Agent Assist - [ ] Set up Dialogflow CX (IVR flows) - [ ] Create BigQuery dataset (wxcc_analytics) - [ ] Configure Cloud Storage bucket (call-recordings) - [ ] Deploy Vertex AI Feature Store - [ ] Enable Model Monitoring - [ ] Integrate WxCC → GCP (webhooks, API exports)

Week 9-10: Azure ExpressRoute (Once circuits delivered) - [ ] Configure ExpressRoute circuits with carriers (Tata/BT/AT&T) - [ ] Set up BGP peering on SD-WAN edges (C8500-12X) - [ ] Verify Office 365 route propagation - [ ] Test latency (target <10ms) - [ ] Migrate 10% of users to ExpressRoute (pilot)

Week 11-12: Azure Virtual WAN - [ ] Provision Virtual WAN hub (Central India) - [ ] Deploy VPN gateway (VpnGw3) - [ ] Configure IPsec tunnels from 15 branches - [ ] Set up BGP peering - [ ] Deploy Azure Firewall (integrated with Virtual WAN) - [ ] Test connectivity (branch → Azure SQL via private endpoint)

Week 13-14: Azure Private Link - [ ] Create private endpoints (5 services: SQL, Storage, Key Vault, ACR, etc.) - [ ] Configure Private DNS zones - [ ] Update on-prem DNS forwarding to Azure DNS - [ ] Disable public IPs for all PaaS services - [ ] Test connectivity from branches

Week 15: SD-WAN Cloud OnRamp Configuration - [ ] Configure vManage Cloud OnRamp policies - [ ] Set up application-aware routing (Office 365 → ExpressRoute, Azure → Virtual WAN, Internet → Umbrella) - [ ] Define SLA thresholds and failover policies - [ ] Test failover scenarios (ExpressRoute down → DIA)

Week 16: Production Cutover & Validation - [ ] Migrate remaining users to ExpressRoute (100%) - [ ] Enable WxCC → GCP Vertex AI integration (100% of calls) - [ ] Validate end-to-end flows (user → Azure → GCP) - [ ] Performance testing (latency, throughput, MOS) - [ ] Documentation handover - [ ] Training for NOC team

Success Metrics¶

Metric	Baseline (Before)	Target (After)
Office 365 Latency	80-120ms (via internet)	<10ms (via ExpressRoute) ✅
Office 365 MOS	3.8-4.0	>4.3 ✅
WxCC CSAT	72%	>80% (with Vertex AI insights) ✅
Agent Productivity	62% utilization	>70% (with Agent Assist) ✅
First Call Resolution	68%	>75% (with better routing) ✅
Azure SQL Latency (Branch)	150ms (via internet)	<20ms (via Virtual WAN) ✅
Security Incidents	Baseline	-30% (with VPC Service Controls, Private Link) ✅

DOCUMENT STATUS: DRAFT v1.0 - Ready for Review
NEXT STEPS:
1. Review with stakeholders (Network Architect, Cloud Architect, Security Lead)
2. Approve GCP critical services (CCAI, VPC Service Controls, DLP)
3. Approve Azure ExpressRoute circuits (12-week lead time)
4. Proceed to detailed implementation guide (Document 2)