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Expert guidance for Azure ExpressRoute development: troubleshooting, best practices, architecture, security, BGP/peering, Global Reach, and S2S VPN over ExpressRoute. Fetches Microsoft docs for up-to-date reference.
How this skill is triggered — by the user, by Claude, or both
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/azure-agent-skills:azure-expressrouteThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
This skill provides expert guidance for Azure ExpressRoute. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.
This skill provides expert guidance for Azure ExpressRoute. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.
IMPORTANT for Agent: Use the Category Index below to locate relevant sections. For categories with line ranges (e.g.,
L35-L120), useread_filewith the specified lines. For categories with file links (e.g.,[security.md](security.md)), useread_fileon the linked reference file
IMPORTANT for Agent: If
metadata.generated_atis more than 3 months old, suggest the user pull the latest version from the repository. Ifmcp_microsoftdocstools are not available, suggest the user install it: Installation Guide
This skill requires network access to fetch documentation content:
mcp_microsoftdocs:microsoft_docs_fetch with query string from=learn-agent-skill. Returns Markdown.fetch_webpage with query string from=learn-agent-skill&accept=text/markdown. Returns Markdown.| Category | Lines | Description |
|---|---|---|
| Troubleshooting | L37-L42 | Troubleshooting ExpressRoute resiliency and asymmetric routing issues, plus FAQs on connectivity models, supported services, bandwidth, and pricing to resolve design or outage-related questions. |
| Best Practices | L43-L50 | Best practices for ExpressRoute: upgrading circuit bandwidth, using BGP communities in complex topologies, QoS for Skype voice, and migrating to new gateway hardware. |
| Decision Making | L51-L59 | Guidance on choosing ExpressRoute connectivity models, VNets and gateways, planning gateway SKU changes, and estimating/optimizing ExpressRoute costs. |
| Architecture & Design Patterns | L60-L70 | Designing resilient, highly available ExpressRoute topologies, multi-circuit routing, coexistence with S2S VPN, DR/backup patterns, and using Microsoft peering for PSTN services. |
| Limits & Quotas | L71-L79 | ExpressRoute limits on FastPath, gateways, routes, and provider circuits, including rate limiting, quotas, monitoring advertised routes, and FAQs on connectivity scale and constraints. |
| Security | L80-L89 | Encryption (IPsec, MACsec), NAT rules, RBAC roles, and security best practices for protecting ExpressRoute circuits and traffic |
| Configuration | L90-L126 | Configuring and managing ExpressRoute circuits, gateways, routing/peering (IPv4/IPv6, BGP, NAT, filters), Global Reach, monitoring, resiliency, and linking VNets via portal, PowerShell, or CLI |
| Integrations & Coding Patterns | L127-L133 | Automating ExpressRoute circuit creation/management with PowerShell or Azure CLI, and configuring a site-to-site VPN that runs over ExpressRoute Microsoft peering. |
| Deployment | L134-L141 | Guides for deploying and migrating ExpressRoute circuits/gateways, including ARM/Terraform provisioning, Direct SKUs, and moving to zone-redundant or new production circuits. |
| Topic | URL |
|---|---|
| Test and validate resiliency of redundant ExpressRoute circuits | https://learn.microsoft.com/en-us/azure/expressroute/evaluate-circuit-resiliency |
| Diagnose and resolve asymmetric routing with ExpressRoute | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-asymmetric-routing |
| Topic | URL |
|---|---|
| Apply best practices for upgrading ExpressRoute circuit bandwidth | https://learn.microsoft.com/en-us/azure/expressroute/about-upgrade-circuit-bandwidth |
| Manage complex ExpressRoute networks using BGP communities | https://learn.microsoft.com/en-us/azure/expressroute/bgp-communities |
| Apply QoS requirements for Skype voice over ExpressRoute | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-qos |
| Migrate legacy ExpressRoute gateway connections to new hardware | https://learn.microsoft.com/en-us/azure/expressroute/howto-recreate-connections |
| Topic | URL |
|---|---|
| Select and configure ExpressRoute virtual network gateways | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-about-virtual-network-gateways |
| Choose the right Azure ExpressRoute connectivity model | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-connectivity-models |
| Plan and execute ExpressRoute gateway SKU migration | https://learn.microsoft.com/en-us/azure/expressroute/gateway-migration |
| Plan and manage Azure ExpressRoute costs | https://learn.microsoft.com/en-us/azure/expressroute/plan-manage-cost |
| Choose VNet connectivity options over ExpressRoute | https://learn.microsoft.com/en-us/azure/expressroute/virtual-network-connectivity-guidance |
| Topic | URL |
|---|---|
| Evaluate ExpressRoute FastPath features and limits | https://learn.microsoft.com/en-us/azure/expressroute/about-fastpath |
| Azure ExpressRoute FAQs on limits and connectivity details | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-faqs |
| Monitor ExpressRoute advertised routes to avoid limits | https://learn.microsoft.com/en-us/azure/expressroute/how-to-custom-route-alert |
| Understand rate limiting on provider-based ExpressRoute circuits | https://learn.microsoft.com/en-us/azure/expressroute/provider-rate-limit |
| ExpressRoute scalable gateway features and limits | https://learn.microsoft.com/en-us/azure/expressroute/scalable-gateway |
| Topic | URL |
|---|---|
| Use encryption options with Azure ExpressRoute | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-about-encryption |
| Configure IPsec transport mode over ExpressRoute for Windows | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-howto-ipsec-transport-private-windows |
| Configure MACsec security for Azure ExpressRoute | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-howto-macsec |
| Apply NAT requirements for Azure ExpressRoute circuits | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-nat |
| Roles and permissions for ExpressRoute resources | https://learn.microsoft.com/en-us/azure/expressroute/roles-permissions |
| Apply security best practices to Azure ExpressRoute | https://learn.microsoft.com/en-us/azure/expressroute/secure-expressroute |
| Topic | URL |
|---|---|
| Programmatically manage ExpressRoute circuits using Azure CLI | https://learn.microsoft.com/en-us/azure/expressroute/howto-circuit-cli |
| Create and manage ExpressRoute circuits using Azure CLI | https://learn.microsoft.com/en-us/azure/expressroute/howto-circuit-cli |
| Configure S2S VPN over ExpressRoute Microsoft peering | https://learn.microsoft.com/en-us/azure/expressroute/site-to-site-vpn-over-microsoft-peering |
| Topic | URL |
|---|---|
| Migrate production workloads to a new ExpressRoute circuit | https://learn.microsoft.com/en-us/azure/expressroute/circuit-migration |
| Understand ExpressRoute Direct SKUs and technical requirements | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-erdirect-about |
| Deploy an Azure ExpressRoute circuit via ARM template | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-howto-circuit-resource-manager-template |
| Migrate to zone-redundant ExpressRoute gateway SKUs | https://learn.microsoft.com/en-us/azure/expressroute/expressroute-howto-gateway-migration-portal |
| Provision ExpressRoute circuit and gateway using Terraform | https://learn.microsoft.com/en-us/azure/expressroute/quickstart-create-expressroute-vnet-terraform |
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