A LAG bundles supported physical ports into one logical interface, while all member links remain inside the same location failure domain; this belongs to aggregated physical ports at one Direct Connect location, while the problem is physical cross-connect authorization at the interconnect facility.

Geographic and facility diversity protects against a single colocation or circuit fault that redundant VLANs on one port cannot survive; this changes physical redundancy across interconnect facilities, not the necessary physical cross-connect authorization at the interconnect facility.

In the heterogeneous backup path for circuit outages workflow, an independent IPsec tunnel over the Internet provides a separate transport failure domain when the dedicated circuit becomes unavailable; the current case needs physical cross-connect authorization at the interconnect facility.

This produces fast establishment of encrypted hybrid connectivity: IPsec tunnels can establish encrypted AWS connectivity without waiting for Direct Connect cross-connect provisioning; the stem instead tests physical cross-connect authorization at the interconnect facility.

Transit VIFs connect on-premises routers to transit gateways through Direct Connect gateways, reducing per-VPC VIF sprawl; that addresses Direct Connect transit access to many routed VPCs, rather than inter-Regional transit routing without BGP propagation.

RAM lets separate accounts create and use approved attachments to a centrally managed transit gateway while retaining account boundaries; this belongs to cross-account consumption of shared transit routing, while the problem is inter-Regional transit routing without BGP propagation.

Transit Gateway Connect provides GRE overlay connectivity and BGP route exchange for supported SD-WAN and virtual router appliances; this changes dynamic GRE overlay integration with transit routing, not the necessary inter-Regional transit routing without BGP propagation.

AWS honors supported communities to influence its outbound routing decision toward advertised customer prefixes; that addresses control of AWS egress preference across hybrid links, rather than private WAN access to a Direct Connect entry point.

Direct Connect provides dedicated transport, while the layered VPN supplies IPsec encryption absent from ordinary VIF forwarding; this changes encrypted hybrid traffic on dedicated transport, not the necessary private WAN access to a Direct Connect entry point.

In the aggregated physical ports at one Direct Connect location workflow, A LAG bundles supported physical ports into one logical interface, while all member links remain inside the same location failure domain; the current case needs private WAN access to a Direct Connect entry point.

The enterprise's own local preference policy selects an outbound path to AWS without requiring changes to AWS advertisement behavior; this belongs to control of customer-originated traffic using internal BGP policy, while the problem is facility-separated Direct Connect paths with VPN backup.

Transit VIFs connect on-premises routers to transit gateways through Direct Connect gateways, reducing per-VPC VIF sprawl; this changes Direct Connect transit access to many routed VPCs, not the necessary facility-separated Direct Connect paths with VPN backup.

In the scalable hybrid throughput rather than repeated encapsulation workflow, layering encryption headers increases overhead but does not combine independent tunnel throughput into a larger physical transport; the current case needs facility-separated Direct Connect paths with VPN backup.

EBGP session configuration must match the advertised peer ASN and local routing policy; accidental ASN mismatches prevent session establishment; that addresses compatible autonomous-system identities for BGP peers, rather than exchange of dynamic routes over IPsec tunnels.

Each Site-to-Site VPN connection provides two tunnels, enabling a surviving tunnel to carry traffic if its peer path fails; this changes resilience against one IPsec tunnel failure, not the necessary exchange of dynamic routes over IPsec tunnels.

In the dynamic GRE overlay integration with transit routing workflow, transit Gateway Connect provides GRE overlay connectivity and BGP route exchange for supported SD-WAN and virtual router appliances; the current case needs exchange of dynamic routes over IPsec tunnels.

Transit gateway peering does not dynamically propagate attached VPC or VPN prefixes, so destination routes must be programmed explicitly; that addresses inter-Regional transit routing without BGP propagation, rather than branch-to-branch transit beyond isolated VPC edge gateways.

A private VIF exchanges private network routes for VPC connectivity instead of exposing the public AWS service address space; this belongs to private-IP hybrid routing to a VPC, while the problem is branch-to-branch transit beyond isolated VPC edge gateways.

In the compatible autonomous-system identities for BGP peers workflow, eBGP session configuration must match the advertised peer ASN and local routing policy; accidental ASN mismatches prevent session establishment; the current case needs branch-to-branch transit beyond isolated VPC edge gateways.

A VGW provides VPC edge connectivity, whereas branch-to-branch transit requires a supported hub service or an appropriately designed VPN topology; that addresses branch-to-branch transit beyond isolated VPC edge gateways, rather than compatible autonomous-system identities for BGP peers.

The enterprise's own local preference policy selects an outbound path to AWS without requiring changes to AWS advertisement behavior; this belongs to control of customer-originated traffic using internal BGP policy, while the problem is compatible autonomous-system identities for BGP peers.

Dynamic Site-to-Site VPN connectivity uses BGP to exchange reachable prefixes and respond to routing changes; this changes exchange of dynamic routes over IPsec tunnels, not the necessary compatible autonomous-system identities for BGP peers.

This produces correct VLAN encapsulation for hybrid BGP sessions: The VIF's VLAN is the layer-two demultiplexing identity, so an incorrect tag prevents expected frames from reaching the BGP peer; the stem instead tests compatible autonomous-system identities for BGP peers.

Transit VIFs connect on-premises routers to transit gateways through Direct Connect gateways, reducing per-VPC VIF sprawl; this belongs to Direct Connect transit access to many routed VPCs, while the problem is correct VLAN encapsulation for hybrid BGP sessions.

A public VIF establishes BGP reachability for supported AWS public endpoints over the dedicated connection without turning them into private IP resources; this changes AWS public service routing over Direct Connect, not the necessary correct VLAN encapsulation for hybrid BGP sessions.

In the compatible autonomous-system identities for BGP peers workflow, eBGP session configuration must match the advertised peer ASN and local routing policy; accidental ASN mismatches prevent session establishment; the current case needs correct VLAN encapsulation for hybrid BGP sessions.

Transit Gateway Connect provides GRE overlay connectivity and BGP route exchange for supported SD-WAN and virtual router appliances; that addresses dynamic GRE overlay integration with transit routing, rather than cross-account consumption of shared transit routing.

Transit VIFs connect on-premises routers to transit gateways through Direct Connect gateways, reducing per-VPC VIF sprawl; this belongs to Direct Connect transit access to many routed VPCs, while the problem is cross-account consumption of shared transit routing.

In the inter-Regional transit routing without BGP propagation workflow, transit gateway peering does not dynamically propagate attached VPC or VPN prefixes, so destination routes must be programmed explicitly; the current case needs cross-account consumption of shared transit routing.

An independent IPsec tunnel over the Internet provides a separate transport failure domain when the dedicated circuit becomes unavailable; that addresses heterogeneous backup path for circuit outages, rather than resilience against one IPsec tunnel failure.

Private IP VPN can run IPsec tunnels on a Direct Connect path using private endpoint addresses and centralized transit routing; this changes private-addressed IPsec encryption on dedicated hybrid links, not the necessary resilience against one IPsec tunnel failure.

In the exchange of dynamic routes over IPsec tunnels workflow, dynamic Site-to-Site VPN connectivity uses BGP to exchange reachable prefixes and respond to routing changes; the current case needs resilience against one IPsec tunnel failure.

Each Site-to-Site VPN connection provides two tunnels, enabling a surviving tunnel to carry traffic if its peer path fails; that addresses resilience against one IPsec tunnel failure, rather than private-addressed IPsec encryption on dedicated hybrid links.

IPsec tunnels can establish encrypted AWS connectivity without waiting for Direct Connect cross-connect provisioning; this changes fast establishment of encrypted hybrid connectivity, not the necessary private-addressed IPsec encryption on dedicated hybrid links.

In the private-IP hybrid routing to a VPC workflow, A private VIF exchanges private network routes for VPC connectivity instead of exposing the public AWS service address space; the current case needs private-addressed IPsec encryption on dedicated hybrid links.