chamilo-lms2/config/packages/cmf_routing_bundle.yaml

# Install phpcr stack before using this configuration
cmf_routing:
    chain:
        routers_by_id:
            # enable the DynamicRouter with high priority to allow overwriting configured routes with content
            #symfony_cmf_routing_extra.dynamic_router: 200
            # enable the symfony default router with a lower priority
            router.default: 150 # First chamilo/symfony2 router
            sonata.page.router: 100 # then the page router