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g.fabre
Beginner

3850 MPLS over GRE with Denali 16.3.x

Can anyone confirm wether MPLSoGRE is supported on Catalyst 3850 or not ?

We configured it & everything seems OK on the control-plane side (LDP session up, MP-BGP routes, label exchange OK) but communications inside VRFs are not working

Release notes & restrictions doesn't mention anything about it.

Thanks in advance & best regards.

2 REPLIES 2
Sam Byers
Beginner

The feature navigator doesn't show MPLSoGRE for this platform in IOS-XE (it does show routers). MPLS is pretty new in the 3850, so I'm not sure if MPLSoGRE would be supported out of the gate. If the control plane works, but not the data plane, it's probably that the switch doesn't know how to add the GRE header on top instead of imposing a label.

Feature guide for GRE on 3850:

http://www.cisco.com/c/dam/en/us/td/docs/switches/lan/catalyst3850/software/release/16-1/workflows/gre-feature-guide.pdf

Feature guide for MPLS on 3850:

http://www.cisco.com/c/dam/en/us/td/docs/switches/lan/catalyst3850/software/release/16-3/workflows/MPLS-feature-guide-1631.pdf

In the above guides, there's no mention of MPLSoGRE.

Thanks Sam for the reply.

Got the confirmation from Cisco : 16.3 does not support MPLS over GRE; the feature is planned to be implemented in the future, but with no release date yet

Regards