# Transport

## Introduction this part define the settings related about network communication

## Configurations

transport.failure.{protocol_name} > (required, string) the name of the protocol client, now only support rest failure. a string list connect with comma,each string starts with http_, combine with http status code. you can define what can be considered as failure and make it count in circuit breaker and fault-tolerance module

transport.maxIdleCon.{protocol_name} > (required, string) MaxIdleConns controls the maximum number of idle (keep-alive) connections across all hosts. Zero means no limit. it only works for rest protocol

transport.maxBodyBytes.{protocol_name} > (optional, int, (bytes)) maxBodyBytes controls the maximum number of request body size ,

Zero means no limit. it only works for rest protocol.

transport.maxHeaderBytes.{protocol_name} > (optional, int, (bytes)) maxHeaderBytes controls the maximum number of request header keys/values, including the request line. Zero means no limit. It only works for rest protocol.

transport.timeout.{protocol_name} > (optional, string) timeout controls the timeout of the server. Use Golang duration string.

## Example The cases of http_500,http_502 are considered as unsuccessful attempts ``` servicecomb:

transport:

failure:

rest: http_500,http_502

maxIdleCon:

rest: 1024

maxBodyBytes:

rest: 1

maxHeaderBytes:

rest: 1

timeout:

rest: 30s

```