Huawei12 min read220 views

Huawei NE40E L3VPN Scale: Memory Management Best Practices

As L3VPN deployments grow to hundreds or thousands of VRFs, Huawei NE40E routers require careful memory management. This article covers VRP memory tuning and monitoring strategies for large-scale deployments.

NE

Netshoota Admin

Netshootaยท2 June 2026

Memory Architecture in NE40E

The NE40E uses a distributed memory architecture where the Main Processing Unit (MPU) handles control plane tasks while Line Processing Units (LPUs) handle forwarding.

Monitoring Memory Usage

display memory-manage statistics
display memory-manage pool

Key Thresholds

Keep BGP process memory below 60% of total available. At 80%, you risk route processing delays. At 90%, the system may enter protection mode and drop sessions.

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