[ovs-discuss] Q-in-Q tagging

Heim, Dennis Dennis.Heim at wwt.com
Tue Jul 16 05:24:45 UTC 2019


Looking into this via packet sniffing..

When I configure the port that connected to the Service Provider, with this command:
	ovs-vsctl add-port data eth0 tag=500 vlan_mode=dot1q-tunnel

After doing that, I do not see any traffic going through that interface. If I add the port as a regular port (vlan10), I am able to see the packets and they are tagged with the first vlan.  As soon as I change the vlan_mode, and set a tag, I do not see any traffic.
	add-port data eth0 

By building a manual flow rule, I was able to get it to work
ovs-ofctl add-flow data in_port=13,action=pop_vlan,output:1
ovs-ofctl --protocols=OpenFlow11 add-flow data in_port=1,actions=push_vlan:0x8100,mod_vlan_vid=500,output:13

Does anyone have dot-1Q tunneling working, if so what version of OvS are you running?

Thanks,

Dennis Heim | Domain Architect (Collaboration Labs)
World Wide Technology, Inc. | +1 314-212-1814



"The most powerful person in the world is the story teller. The storyteller sets the vision, values and agenda of an entire generation that is to come" - Steve Jobs
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-----Original Message-----
From: ovs-discuss-bounces at openvswitch.org <ovs-discuss-bounces at openvswitch.org> On Behalf Of Nitin Katiyar
Sent: Monday, July 15, 2019 4:29 AM
To: ovs-discuss at openvswitch.org
Subject: Re: [ovs-discuss] Q-in-Q tagging



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>    1. Q-in-Q tagging (Heim, Dennis)
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> Date: Mon, 15 Jul 2019 07:42:40 +0000
> From: "Heim, Dennis" <Dennis.Heim at wwt.com>
> To: "ovs-discuss at openvswitch.org" <ovs-discuss at openvswitch.org>
> Subject: [ovs-discuss] Q-in-Q tagging
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> I upgraded to OvS 2.9.5 to get Q-in-Q (VLAN in VLAN support). I am 
> trying to get it working to a Cisco router. Has anyone conquered this beast already?
> With the VLAN_MODE=dot1-tunnel, do you know what ethertype it is 
> expecting to be used?
> 
Hi,
Default is ETH_TYPE_VLAN_8021AD (0x88a8) but you can change it using following command:
ovs-vsctl set Port <PORT NAME> vlan_mode=dot1q-tunnel other-config:qinq-ethtype=802.1q

regards,
Nitin
> Dennis Heim | Domain Architect (Collaboration Labs) World Wide 
> Technology, Inc. | +1 314-212-1814 
> [cid:image001.png at 01D10DD2.7FC81F90]<https://twitter.com/CollabSensei
> >
> [cid:image002.png at 01D10DD2.7FC81F90]<xmpp:dennis.heim at wwt.com>[ci
> d:image003.png at 01D10DD2.7FC81F90]<tel:+13142121814>[cid:image004.
> png at 01D10DD2.7FC81F90]<sip:dennis.heim at wwtatc.com>
> 
> "The most powerful person in the world is the story teller. The 
> storyteller sets the vision, values and agenda of an entire generation 
> that is to come" - Steve Jobs "Leadership isn't a different maker. It 
> is the difference maker" - Tim Kight "Leaders who don't listen will 
> eventually be surrounded by people who have nothing to say" --- Andy 
> Stanley "Worry less about who you might offend, and more about who you 
> might inspire" -- Tim Allen "Imagination is more important than 
> knowledge."  -- Albert Einstein "If you can raise the level of effort 
> and performance in those around you, you are officially a leader" - 
> Urban Meyer "The greatest danger for most of us is not that our aim is 
> too high and we miss it, but that it is too low and we reach it." -- 
> Michelangelo Buonarroti "Mediocore managers play checkers (assuming 
> everyone is the same). Great managers play chess (acknowledging that 
> everyone is unique)" - Marcus Buckingham "If you're not failing every 
> now and again, it's a sign you're not doing anything very innovative" 
> - Woody Allen
> 
> Click here to join me in my Collaboration Meeting 
> Room<https://wwt.webex.com/meet/dennis.heim>
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