MPLS VPN label stack.

[mpugliese]

When you have at your MPLS Domain a site that belong to more than one VPN, despite top label of the stack used for label switching, MPLS uses a single application label to identify all the VPNs the VRF belongs OR MPLS uses a application label to identify each VPN the VRF belongs ?

[Harold Ritter]

The IOS uses a different application label (or usually referred to as service label) per prefix. To give you a perspective, one of our competitors (JNPR)uses one label per CE. Our implementation is more flexible when it comes to loadbalancing and features such as Carrier supporting Carrier (CsC).

Hope this helps,

[mpugliese]

Harold.

Thanks for your reply.

You mean that despite how many distinct VPNs a VPNv4 prefix belongs the IOS will assign a single service label to it ?

Best Regards.

MP

[Harold Ritter]

Correct. One label per customer route.

Hope this helps,

[mpugliese]

Yes, that was enough.

Thanks.

Murilo Pugliese.