netdev - Re: [PATCH RFC net-next] arp: Really delete an arp entry on "arp -d"

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Message-ID: <20170531152203.GB9362@oracle.com>
Date:   Wed, 31 May 2017 11:22:03 -0400
From:   Sowmini Varadhan <sowmini.varadhan@...cle.com>
To:     David Ahern <dsahern@...il.com>
Cc:     Stephen Hemminger <stephen@...workplumber.org>,
        netdev@...r.kernel.org
Subject: Re: [PATCH RFC net-next] arp: Really delete an arp entry on "arp -d"

On (05/30/17 18:42), David Ahern wrote:
> It has been noticed. I have not sent a patch since adjusting gc
> parameters will reclaim FAILED entries at whatever rate the user wants.

Overly aggressive garbage collection will delete other (non-FAILED)
entries as well, and can trigger needless re-ARP (or re-ND), whereas
the admin may just want to lose some selective static arp/NCE entries.

--Sowmini