SDT0653: RPC Payload Exceeded Size

Property Value
Rule ID SDT0653
Title RPC Payload Exceeded Size
Category Network
Severity Warning

Cause

The calculated static byte size of an RPC's parameter payload exceeds the recommended maximum MTU transmission frame sizes.

Rule Description

Large RPC payloads force packet fragmentation across the network layer. This dramatically introduces latency, increases packet drop ratios, and hinders overall network stability. Keep arguments tightly packed.

How to Fix Violations

Reduce the number of parameters, downsize large primitive types (e.g., use short instead of int), or stream large datasets using an dedicated chunked transfer streaming pipeline instead of a single RPC call.

Violation:

[RPC(PacketBroadcast.Server)]
public void RPC_SyncData([StringPacket(4096)] string config) { } // Exceeds threshold

Fix:

[RPC(PacketBroadcast.Server)]
public void RPC_SyncDataId(int configId) { }

When to Suppress Warnings

Info

This warning can be bypassed if the specific RPC is explicitly documented to run exclusively over local loopbacks (LAN architectures) or isolated initial initialization routines where frame drops are handled safely by standard TCP fallbacks.