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List: linux-bridge
Subject: Re: [Bridge] [PATCH net-next 4/4] selftests: forwarding: Add MDB dump test cases
From: Nikolay Aleksandrov <razor () blackwall ! org>
Date: 2023-02-09 8:24:11
Message-ID: e69754d3-dead-5477-266b-8618f567ac34 () blackwall ! org
[Download RAW message or body]
On 2/9/23 09:18, Ido Schimmel wrote:
> The kernel maintains three markers for the MDB dump:
>
> 1. The last bridge device from which the MDB was dumped.
> 2. The last MDB entry from which the MDB was dumped.
> 3. The last port-group entry that was dumped.
>
> Add test cases for large scale MDB dump to make sure that all the
> configured entries are dumped and that the markers are used correctly.
>
> Specifically, create 2 bridges with 32 ports and add 256 MDB entries in
> which all the ports are member of. Test that each bridge reports 8192
> (256 * 32) permanent entries. Do that with IPv4, IPv6 and L2 MDB
> entries.
>
> On my system, MDB dump of the above is contained in about 50 netlink
> messages.
>
> Example output:
>
> # ./bridge_mdb.sh
> [...]
> INFO: # Large scale dump tests
> TEST: IPv4 large scale dump tests [ OK ]
> TEST: IPv6 large scale dump tests [ OK ]
> TEST: L2 large scale dump tests [ OK ]
> [...]
>
> Signed-off-by: Ido Schimmel <idosch@nvidia.com>
> Reviewed-by: Petr Machata <petrm@nvidia.com>
> ---
> .../selftests/net/forwarding/bridge_mdb.sh | 99 +++++++++++++++++++
> 1 file changed, 99 insertions(+)
>
Nice!
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
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