IP Transit High Availability (HA)
Build a redundant egress architecture with dual ports to eliminate single points of failure and ensure business continuity.
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Build a redundant egress architecture with dual ports to eliminate single points of failure and ensure business continuity.
IP Transit High Availability (HA) allows you to build a redundant egress architecture using two co-located physical ports, eliminating single points of failure and ensuring business continuity. The dual-link HA architecture delivers an SLA of 99.95%, higher than the single-link standard.
Note
HA instances are currently only supported on automated (BR) devices. Upgrading existing single-link instances to HA is not supported in this release.
HA instances support two operating modes, which can be switched at any time after creation:
Active-Standby
Primary-Backup
The primary port carries all traffic. If the primary port fails, traffic automatically switches to the standby port within seconds. Suitable for workloads that require deterministic routing paths.
Active-Active
Load Balancing
Both links forward traffic simultaneously using ECMP. Maximizes bandwidth utilization; traffic migrates smoothly if one link fails.
HA instances support Static Routing only.
Your account has completed identity verification and has sufficient balance.
The target city has two or more available IP Transit physical ports with status UP.
VLAN IDs are planned for both the primary and standby ports (the same value is recommended for both).
You have determined the required bandwidth specification and billing model (Flat Rate / Burstable 95th).
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