Inner vlan bridging ( is what I call it )

andreas1 — Mon, 16 Mar 2015 13:52:00 GMT

I have a setup as described below.
Today I have to use a MX80 for this purpose but I was wondering if there is anything I could do within a Extreme switch instead

To explain my predicament a bit further

The port called ge-1/1/9 towards something called Telia NNI is a VLAN 0x8100.

The port called ge-1/1/0 towards the L460 ( L is for Labb X460) is VMAN 0x9100

Vman tagged traffic is received ingress on port ge-1/1/0 with the tags specified ( 33,401,501,601)

Egress towards L440 on interface ge-1/1/9 we have to
translate 401 to 41
translate 501 to 51
translate 601 to 61

At the same time we have to innertag vlan 33 on all those translated vlans cause that vlan is the inbound managment on the left L150 called CPE.

The L440 ( out of my control and part of a provider network ) just have vlans tagged on egress towards the MX80 ge-1/1/9 and have no idea of the vlan tags we sent from the L460 ( 401,501,601) so the only thing it can see ingress is the vlan tag 41, 51, 61 and NOT 33 cause that tag is not part of the NNI interface.

The switch Im' trying to do this is can be of whatever model there is from extreme x670 to x440. But I have yet to figure out if this is doable on any switch ?

Below is the juniper config

interfaces { ge-1/1/9 {
unit 33 {
description MGMT;
encapsulation vlan-bridge;
vlan-tags outer 0x9100.33;
}
unit 41 {
description XA12345;
encapsulation vlan-bridge;
vlan-tags outer 0x9100.41;
}
}
ge-1/1/0 {
unit 401 {
description "FB-12345 - XA12345";
encapsulation vlan-bridge;
vlan-tags outer 0x8100.401 inner 0x9100.41;
}
unit 5496 {
description "MGMT for FB-12345 - IPONLY";
encapsulation vlan-bridge;
vlan-tags outer 0x8100.401 inner 0x9100.33;
}
}
}
routing-instances {
IPONLY {
instance-type virtual-switch;
bridge-domains {
IPONLY {
domain-type bridge;
vlan-tags outer 0x9100.33;
interface ge-1/1/9.33;
interface ge-1/1/0.5496;
}
}
}
XA12345 {
description "XA12345 - FB-12345";
instance-type virtual-switch;
bridge-domains {
XA12345 {
description "XA12345 - FB-12345";
domain-type bridge;
vlan-tags outer 0x9100.41;
interface ge-1/1/9.41;
interface ge-1/1/0.401;
}
}
}
}

RE: Inner vlan bridging ( is what I call it )

Alexandr_P — Mon, 16 Mar 2015 14:00:00 GMT

Hello, Andreas!

I think you mean Selective Q-in-Q in Extreme switches.

Thank you!

topic RE: Inner vlan bridging ( is what I call it ) in ExtremeSwitching (EXOS/Switch Engine)

Inner vlan bridging ( is what I call it )

RE: Inner vlan bridging ( is what I call it )