1. A physical computing device comprising: a set of processing units; and a set of machine readable media storing for execution by the set of processing units: a plurality of data compute nodes (DCNs) deployed by a compute manager of a datacenter; and a network manager agent configured to: receive, from a network manager of the datacenter, read-only configuration information for each of a set of logical networks configured and managed by the network manager, wherein the configuration information for each logical network comprises configuration information for a logical forwarding element (LFE) of the logical network, the LFE configured and managed by the network manager to perform open systems interconnection (OSI) model layer 3 (L3) packet forwarding between DCNs on one or more hosts, the LFE comprising a plurality of logical ports configured and managed by the network manager, each logical port for connecting the LFE to a DCN; provision the LFE of each logical network of the set of logical networks on the physical computing device for use by the compute manager; and provide a copy of the received read-only configuration information to the compute manager to allow the compute manager to connect one or more DCNs to each the logical network through one or more logical ports of the logical network's LFE, wherein the compute manager cannot modify the logical network or the LFE.