Routing

Answer

The following configuration is an example in which class-based forwarding is applied to a VPLS. It works as expected when both RSVP LSPs are up. If one of the LSPs goes down, all traffic uses the remaining LSP.

For example, if the to-brg2-private LSP or tunnel goes down, all of the PRIVATE class traffic then uses the REALTIME tunnel.

next-hop-map NHOP-LSP-MAP {
    forwarding-class REALTIME {
      lsp-next-hop to-brg2-realtime;
    }
    forwarding-class PRIVATE {
      lsp-next-hop to-brg2-private;
    }
}

To change this behavior, apply a filter that only allows traffic of the specific forwarding class on each LSP:

set protocols mpls label-switched-path name policing filter name

 For more information, click Layer 2 VPNs and VPLS Feature Guide.