When the CR-LSP attribute template is modified, if the commands that conflict with the CR-LSP attribute template are configured on a tunnel interface, the configurations of the CR-LSP attribute template cannot be committed.
When the CR-LSP attribute template is applied by a tunnel, you can modify the tunnel attributes by modifying the configurations of the CR-LSP attribute template. Different modifications in the CR-LSP attribute template have different impacts on the setup of the tunnel. If the priorities of the CR-LSP attribute template are modified, Break-Before-Make (BBM) is performed on the tunnel. If the Make-Before-Break (MBB) attribute of the CR-LSP attribute template is modified, MBB may be performed on the tunnel.