Documentation/translations/zh_CN/networking/mptcp-sysctl.rst
Source file repositories/reference/linux-study-clean/Documentation/translations/zh_CN/networking/mptcp-sysctl.rst
File Facts
- System
- Linux kernel
- Corpus path
Documentation/translations/zh_CN/networking/mptcp-sysctl.rst- Extension
.rst- Size
- 4727 bytes
- Lines
- 140
- Domain
- Support Tooling And Documentation
- Bucket
- Documentation
- Inferred role
- Support Tooling And Documentation: documentation
- Status
- atlas-only
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
.. SPDX-License-Identifier: GPL-2.0
.. include:: ../disclaimer-zh_CN.rst
:Original: Documentation/networking/mptcp-sysctl.rst
:翻译:
孙渔喜 Sun yuxi <sun.yuxi@zte.com.cn>
================
MPTCP Sysfs 变量
================
/proc/sys/net/mptcp/* Variables
===============================
add_addr_timeout - INTEGER (秒)
设置ADD_ADDR控制消息的重传超时时间。当MPTCP对端未确认
先前的ADD_ADDR消息时,将在该超时时间后重新发送。
默认值与TCP_RTO_MAX相同。此为每个命名空间的sysctl参数。
默认值:120
allow_join_initial_addr_port - BOOLEAN
控制是否允许对端向初始子流使用的IP地址和端口号发送加入
请求(1表示允许)。此参数会设置连接时发送给对端的标志位,
并决定是否接受此类加入请求。
通过ADD_ADDR通告的地址不受此参数影响。
此为每个命名空间的sysctl参数。
默认值:1
available_path_managers - STRING
显示已注册的可用路径管理器选项。可能有更多路径管理器可用
但尚未加载。
available_schedulers - STRING
显示已注册的可用调度器选项。可能有更多数据包调度器可用
但尚未加载。
blackhole_timeout - INTEGER (秒)
当发生MPTCP防火墙黑洞问题时,初始禁用活跃MPTCP套接字上MPTCP
功能的时间(秒)。如果在重新启用MPTCP后立即检测到更多黑洞问题,
此时间段将呈指数增长;当黑洞问题消失时,将重置为初始值。
设置为0可禁用黑洞检测功能。此为每个命名空间的sysctl参数。
默认值:3600
checksum_enabled - BOOLEAN
控制是否启用DSS校验和功能。
当值为非零时可启用DSS校验和。此为每个命名空间的sysctl参数。
默认值:0
close_timeout - INTEGER (seconds)
设置"先断后连"超时时间:在未调用close或shutdown系统调用时,
MPTCP套接字将在最后一个子流移除后保持当前状态达到该时长,才
会转为TCP_CLOSE状态。
默认值与TCP_TIMEWAIT_LEN相同。此为每个命名空间的sysctl参数。
默认值:60
enabled - BOOLEAN
Annotation
- Atlas domain: Support Tooling And Documentation / Documentation.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.