From: Eric Dumazet <eric.dumazet@gmail.com>
To: ZhangXiao <xiao.zhang@windriver.com>,
edumazet@google.com, davem@davemloft.net
Cc: netdev@vger.kernel.org
Subject: Re: Shall we add some note info for tcp_min_snd_mss?
Date: Wed, 3 Jul 2019 11:34:50 +0200 [thread overview]
Message-ID: <564a6863-0db9-a07b-0cfc-b41ea8e9c9f8@gmail.com> (raw)
In-Reply-To: <5D1C68C8.6020408@windriver.com>
On 7/3/19 1:35 AM, ZhangXiao wrote:
> Hi David & Eric,
>
> Commit 5f3e2bf0 (tcp: add tcp_min_snd_mss sysctl) add a new interface to
> adjust network. While if this variable been set too large, for example
> larger then (MTU - 40), the net link maybe damaged. So, how about adding
> some warning messages for the operator/administrator? In document, or in
> source code.
What kind of warning message do you
envision exactly ?
The sysctl is global, devices MTU can be quite arbitrary.
Like almost all sysctls, sysadmins are supposed to know what they are doing.
prev parent reply other threads:[~2019-07-03 9:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-03 8:35 Shall we add some note info for tcp_min_snd_mss? ZhangXiao
2019-07-03 9:34 ` Eric Dumazet [this message]
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