Hi Juraj,
Please try this:
https://gerrit.fd.io/r/#/c/6936/
which is intended to implement Ole’s suggestion.
thanks,
neale
-----Original Message-----
From: <vpp-dev-boun...@lists.fd.io> on behalf of "Juraj Linkes -X (jlinkes -
PANTHEON TECHNOLOGIES at Cisco)" <jlin...@cisco.com>
Date: Tuesday, 30 May 2017 at 10:19
To: "otr...@employees.org" <otr...@employees.org>
Cc: "Wojciech Dec (wdec)" <w...@cisco.com>, "fds-...@lists.opnfv.org"
<fds-...@lists.opnfv.org>, "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] [Fds-dev] Does VPP support vlan 0?
Hi Ole,
Thanks for the clarification, here's the ticket:
https://jira.fd.io/browse/VPP-870
Juraj
-----Original Message-----
From: otr...@employees.org [mailto:otr...@employees.org]
Sent: Tuesday, 30 May, 2017 10:46
To: Juraj Linkes -X (jlinkes - PANTHEON TECHNOLOGIES at Cisco)
<jlin...@cisco.com>
Cc: Wojciech Dec (wdec) <w...@cisco.com>; John Lo (loj) <l...@cisco.com>;
vpp-dev@lists.fd.io; fds-...@lists.opnfv.org
Subject: Re: [vpp-dev] [Fds-dev] Does VPP support vlan 0?
Juraj,
> That's how I understand it. Doesn't that mean it should work without the
subinterface?
>
> Configuring the sub-interface obviously works. I'm just confused about
how vpp handles this. For example, I don't need to configure sub-interface for
vlan 0 for linux interfaces - the packet doesn't get dropped.
I _think_ correct behaviour for RX on a routed interface is that the VLAN 0
tag should be ignored. And that you shouldn't need a subinterface in this case.
If we require a subinterface, then we cannot receive tagged with 0 and untagged
traffic on the same interface. Something I believe we have to do, if we want to
be compliant for this case.
Open a JIRA?
Best regards,
Ole
>
> Juraj
>
> From: Wojciech Dec (wdec)
> Sent: Monday, 29 May, 2017 15:47
> To: Juraj Linkes -X (jlinkes - PANTHEON TECHNOLOGIES at Cisco)
> <jlin...@cisco.com>; John Lo (loj) <l...@cisco.com>;
> vpp-dev@lists.fd.io
> Cc: fds-...@lists.opnfv.org
> Subject: Re: [Fds-dev] Does VPP support vlan 0?
>
> A frame with VLAN 0 means “I’m on the default VLAN” and “here are my PCP
bits”.
> As John suggested, would be good to ry setting a sub-interface for 0.
>
> Regards,
> -Wojciech.
>
>
> From: <fds-dev-boun...@lists.opnfv.org> on behalf of "Juraj Linkes -X
> (jlinkes - PANTHEON TECHNOLOGIES at Cisco)" <jlin...@cisco.com>
> Date: Monday, 29 May 2017 at 15:08
> To: "John Lo (loj)" <l...@cisco.com>, "vpp-dev@lists.fd.io"
> <vpp-dev@lists.fd.io>
> Cc: "fds-...@lists.opnfv.org" <fds-...@lists.opnfv.org>
> Subject: Re: [Fds-dev] Does VPP support vlan 0?
>
> Hi John,
>
> UCS-B's drivers apparently send vlan 0 in native vlan. I'm just pointing
out that vpp treats vlan id 0 as a vlan when vlan 0 means it's not a vlan (if I
understand the IEEE Std 802.1Q correctly). Or am I missing something?
>
> Thanks,
> Juraj
>
> From: John Lo (loj)
> Sent: Thursday, 25 May, 2017 16:12
> To: Juraj Linkes -X (jlinkes - PANTHEON TECHNOLOGIES at Cisco)
> <jlin...@cisco.com>; vpp-dev@lists.fd.io
> Cc: Tomas Cechvala -X (tcechval - PANTHEON TECHNOLOGIES at Cisco)
> <tcech...@cisco.com>; fds-...@lists.opnfv.org
> Subject: RE: Does VPP support vlan 0?
>
> Hi Juraj,
>
> For an interface in L3 mode, any packet received with a VLAN tag must
match a sub-interface setup to expect that VLAN tag value. A way to handle this
may be to create a sub-interface matching VLAN 0, such as:
>
> DBGvpp# create sub tuntap-0 0
> tuntap-0.0
> DBGvpp# sho int
> Name Idx State Counter
Count
> GigabitEthernet1b/0/0 3 up rx packets
44630
> rx bytes
4528252
> tx packets
3105
> tx bytes
480292
> drops
20672
> punts
373
> ip4
23551
> GigabitEthernet4/0/0 2 up rx packets
3070
> rx bytes
325990
> tx packets
23549
> tx bytes
2085942
> drops
16
> local0 0 down
> tuntap-0 1 up tx packets
373
> tx bytes
17158
> tuntap-0.0 5 down
> vxlan_tunnel0 4 up rx packets
23549
> rx bytes
2085942
> tx packets
3068
> tx bytes
436318
> DBGvpp# set int state tuntap-0.0 up
>
> I have not tried this kind of setup before and do not know if other
config may be necessary to get this going. One question I do have is why are
you receiving a packet with VLAN tag 0 in your tap interface?
>
> Hopefully this may work for you,
> John
>
> From: vpp-dev-boun...@lists.fd.io [mailto:vpp-dev-boun...@lists.fd.io]
> On Behalf Of Juraj Linkes -X (jlinkes - PANTHEON TECHNOLOGIES at
> Cisco)
> Sent: Thursday, May 25, 2017 4:19 AM
> To: vpp-dev@lists.fd.io
> Cc: Tomas Cechvala -X (tcechval - PANTHEON TECHNOLOGIES at Cisco)
> <tcech...@cisco.com>; fds-...@lists.opnfv.org
> Subject: Re: [vpp-dev] Does VPP support vlan 0?
>
> Hello vpp-devs,
>
> Has anyone looked at this?
>
> Thanks,
> Juraj
>
> From: Juraj Linkes -X (jlinkes - PANTHEON TECHNOLOGIES at Cisco)
> Sent: Tuesday, 23 May, 2017 15:47
> To: vpp-dev@lists.fd.io
> Cc: fds-...@lists.opnfv.org; Frank Brockners (fbrockne)
> <fbroc...@cisco.com>; Tomas Cechvala -X (tcechval - PANTHEON
> TECHNOLOGIES at Cisco) <tcech...@cisco.com>; Michal Cmarada -X
> (mcmarada - PANTHEON TECHNOLOGIES at Cisco) <mcmar...@cisco.com>
> Subject: Does VPP support vlan 0?
>
> Hi vpp-devs,
>
> I'm hitting an issue when VLAN ID is 0:
> 03:20:01:825468: tapcli-rx
> tap-0
> 03:20:01:825472: ethernet-input
> IP4: 00:25:b5:00:01:4a -> 01:00:5e:00:00:12 802.1q vlan 0
> 03:20:01:825473: error-drop
> ethernet-input: unknown vlan
>
> As I understand it, the device should treat packets with VLAN 0 as if it
didn't have an ID:
> The null VLAN ID. Indicates that the tag header contains only priority
> information; no VLAN identifier is present in the frame.
>
> I'm trying this with 1704. Does VPP support this? Is there a workaround,
like stripping the 802.1q header for tap ports?
>
> Thanks,
> Juraj
> _______________________________________________
> vpp-dev mailing list
> vpp-dev@lists.fd.io
> https://lists.fd.io/mailman/listinfo/vpp-dev
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