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List: quagga-users
Subject: [quagga-users 14954] Re: problem with ospf6 MTU VLAN interface
From: Alexis Rosen <quagga-users () alexis ! users ! panix ! com>
Date: 2018-02-22 22:49:24
Message-ID: 54E4BDD0-E7C5-4115-AFC9-2CA719AA4D29 () alexis ! users ! panix ! com
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On Feb 22, 2018, at 10:40 AM, Bartłomiej Solarz-Niesłuchowski <Bartlomiej.Solarz-Niesluchowski@wit.edu.pl> wrote:
> I have strange problem with ospf6d + VLAN interface + fedora 27.
>
> in ospf6d config file(on disk) i have:
> interface enp1s0f0.224
> ipv6 ospf6 cost 1
> ipv6 ospf6 network broadcast
>
> BUT after rebooting serwer when i log in to management console:
> sh run
> interface enp1s0f0.224
> ipv6 ospf6 ifmtu 1504
> ipv6 ospf6 cost 1
> ipv6 ospf6 network broadcast
>
> interface has MTU 1500 bytes:
> sh interface enp1s0f0.224
> Interface enp1s0f0.224 is up, line protocol is up
> Link ups: 1 last: Thu, 22 Feb 2018 16:34:20 +0100
> Link downs: 0 last: (never)
> vrf: 0
> index 4 metric 0 mtu 1500
> flags: <UP,BROADCAST,RUNNING,MULTICAST>
> Type: Unknown
> HWaddr: 00:1e:67:37:67:bc
> inet 213.135.44.139/28 broadcast 213.135.44.143
> inet6 fe80::21e:67ff:fe37:67bc/64
> inet6 2001:1a68:a:3000::139/64
>
> WHY config automatically changing????
Maybe because .1q VLAN tags use four bytes?
/a
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