Connectionless Network Service (CLNS) is a Layer 3 protocol similar to IPv4 for linking hosts (end systems) with routers (intermediate systems) in an Open Systems Interconnection (OSI) network. CLNS and its related OSI protocols, Intermediate System-to-Intermediate System (IS-IS) and End System-to-Intermediate System (ES-IS), are International Organization for Standardization (ISO) standards.
You can configure J Series devices as provider edge (PE) routers within a CLNS network. CLNS networks can be connected over an IP MPLS network core using BGP and MPLS Layer 3 virtual private networks (VPNs). For more information, see RFC 2547, BGP/MPLS VPNs.
You can use either the J-Web configuration editor or CLI configuration editor to configure CLNS.
For more information about CLNS, IS-IS, and ES-IS, see the JUNOS Routing Protocols Configuration Guide.
For information about which devices support the features documented in this chapter, see Support Overview for Interface and Routing Features.
This chapter contains the following topics:
