[j-nsp] QinQ on MX bridge-ing

[Adam Vitkovsky]

Hi Chris,

> 2/1/5 is the "access port" which pops the outer tag on egress, slaps it on on
> ingress; regardless if it's already tagged coming in.
>
Wouldn't the frame still remain untagged within the BD please?
And would only get the tag 100 applied as a top tag when sent out of either ge-2/1/2.100 or ge-2/1/3.100 please?


adam
> -----Original Message-----
> From: juniper-nsp [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf
> Of Chris Kawchuk
> Sent: 16 April 2015 00:40
> To: Robert Hass
> Cc: juniper-nsp at puck.nether.net
> Subject: Re: [j-nsp] QinQ on MX bridge-ing
> 
> Try this
> 
> set interfaces ge-2/1/2 flexible-vlan-tagging
> set interfaces ge-2/1/2 mtu 9192
> set interfaces ge-2/1/2 encapsulation flexible-ethernet-services
> set interfaces ge-2/1/2 unit 100 encapsulation vlan-bridge
> set interfaces ge-2/1/2 unit 100 vlan-id 100
> 
> set interfaces ge-2/1/3 flexible-vlan-tagging
> set interfaces ge-2/1/3 mtu 9192
> set interfaces ge-2/1/3 encapsulation flexible-ethernet-services
> set interfaces ge-2/1/3 unit 100 encapsulation vlan-bridge
> set interfaces ge-2/1/3 unit 100 vlan-id 100
> 
> set interfaces ge-2/1/5 mtu 9192
> set interfaces ge-2/1/5 encapsulation ethernet-bridge
> set interfaces ge-2/1/5 unit 0 family bridge
> 
> set protocols protection-group ethernet-ring erpsring1 data-channel vlan 100
> //* if you're using ERPS for failover on a ring of EX42's, which you should -- to
> avoid using dreaded spanning tree protocols ;)
> 
> set bridge-domains QinQ vlan-id 100
> set bridge-domains QinQ interface ge-2/1/2.100
> set bridge-domains QinQ interface ge-2/1/3.100
> set bridge-domains QinQ interface ge-2/1/5.0;
> 
> 2/1/2 and 2/1/3 are the "trunk" ports, you only care about the outer tag
> here. (its double tagged coming in from the EX42, but you dont care at this
> point)
> 2/1/5 is the "access port" which pops the outer tag on egress, slaps it on on
> ingress; regardless if it's already tagged coming in.
> 
> - CK.
> 
> 
> 
> 
> 
> 
> 
> 
> 
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