From: Ben Greear <greearb@candelatech•com>
To: Alexander Clouter <alex@digriz•org.uk>
Cc: netdev@vger•kernel.org
Subject: Re: [iproute2] iproute2: Allow 'ip addr flush' to loop more than 10 times.
Date: Tue, 29 Jun 2010 08:04:34 -0700 [thread overview]
Message-ID: <4C2A0B82.7020701@candelatech.com> (raw)
In-Reply-To: <50mof7-b9p.ln1@chipmunk.wormnet.eu>
On 06/29/2010 01:03 AM, Alexander Clouter wrote:
> greearb@gmail•com wrote:
>>
>> The default remains at 10 for backwards compatibility.
>>
>> For instance:
>> # ip addr flush dev eth2
>> *** Flush remains incomplete after 10 rounds. ***
>> # ip -l 20 addr flush dev eth2
>> *** Flush remains incomplete after 20 rounds. ***
>> # ip -loops 0 addr flush dev eth2
>> #
>>
>> This is useful for getting rid of large numbers of IP
>> addresses in scripts.
>>
> Maybe I am missing a trick, but what is wrong with putting this trivial
> logic into the script:
>
> ip addr show ${DEV} | awk '/inet6? / { print $2 }' | xargs -I{} ip addr del '{}' dev ${DEV}
This isn't going to be fast if you have thousands of addresses.
> You can probably speed things up with '-P' too, '-P 2' gives me a huge
> huge speed up for the work I do with 'ip route'.
Where are you using the -P at? It's not a supported option of 'ip'
as far as I can tell.
> Why the need to cram more functionality and options into iproute when
> it is something that can be pushed into the wrapper script?
Speed and ease of use.
Thanks,
Ben
--
Ben Greear <greearb@candelatech•com>
Candela Technologies Inc http://www.candelatech.com
next prev parent reply other threads:[~2010-06-29 15:04 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-29 5:55 [iproute2] iproute2: Allow 'ip addr flush' to loop more than 10 times greearb
2010-06-29 6:12 ` David Miller
2010-06-29 6:27 ` Ben Greear
2010-06-29 6:36 ` David Miller
2010-06-29 9:58 ` Andreas Henriksson
2010-06-29 14:59 ` Ben Greear
2010-06-29 15:10 ` Ben Greear
2010-06-29 17:02 ` David Miller
2010-06-29 8:03 ` Alexander Clouter
2010-06-29 15:04 ` Ben Greear [this message]
2010-06-29 15:48 ` Alexander Clouter
2010-06-29 16:30 ` Ben Greear
2010-08-04 21:00 ` Stephen Hemminger
2010-08-04 21:13 ` Ben Greear
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