The MPLS Topology Server discovers L2VPN-specific objects by probing the router and switch objects that are imported from IP Availability Manager. Discovery sources for MPLS LDP- and BGP-signaled L2VPNs identifies the L2VPN discovery sources, and GUID-DA4F7D29-AA14-4013-B66A-E26AC9D89559.html#GUID-DA4F7D29-AA14-4013-B66A-E26AC9D89559___MPLS_DISCO_PROCESS_LSP_11604 describes the targeted LDP adjacency discovery sources.

Table 1. Discovery sources for MPLS LDP- and BGP-signaled L2VPNs

Device/platform

LDP-signaled L2VPNs 1

BGP-signaled L2VPNs 1

VPWS 2

VPLS 2

VPWS

VPLS 2

1  SNMP-discovered objects are monitored for status, but CLI-discovered objects are not.

2  CLI discovery gathers VLAN-related information and associates VLANs with discovered VPWS/VPLS instances.

Cisco IOS

CISCO-IETF-PW-MIB,CISCO-IETF-PW-MPLS-MIB

CLI

Not applicable

Not applicable

Cisco IOX

CISCO-IETF-PW-MIB,CISCO-IETF-PW-MPLS-MIB

CISCO-IETF-PW-MIB,CISCO-IETF-PW-MPLS-MIB

Huawei

CLI

Not supported

Juniper M/T

Not supported

CLI

JUNIPER-VPN-MIB

JUNIPER-VPN-MIB

Juniper ERX

CLI

CLI

Not supported

Not supported

Appendix A, “MIBs Accessed for Discovery and Remote Ping,” provides a description of the discovery MIB objects that are polled by an SNMP discovery probe. Appendix B, “CLI Commands Invoked for Discovery and LSP Ping,” provides a description of the commands that are invoked by a CLI discovery session.