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Question What is the solution for interprovider Option B connection between LDP-based Layer 2 circuits and BGP-based Layer 2 VPNs? Answer As of Junos OS Release 9.3 and later, Layer 2 circuits with interworking iw0 interfaces can be manually stitched. If dynamic signaling is needed, use...
Question What are the supported Layer 2 interworking stitching configurations? Answer These are the stitching options supported in Junos OS Release 9.3 and later: Layer 2 circuit into Layer 2 VPN NOTE: In Junos OS Release 9.4 and later, you can use an iw interface instead of an lt...
Question What is the behavior of a virtual tunnel interface in different services routing instances? Answer If you configure a virtual tunnel (vt) interface on the egress PE router and that router is also a transit router for the point-to-multipoint LSP, the penultimate hop router sends...
Question Can a Layer 2 circuit be terminated into VPLS? Answer Yes, Junos OS Release 9.2 and later uses mesh groups to terminate pseudowire emulation (pseudowireE) into VPLS. You can terminate one pseudowireE per mesh group within the VPLS. A maximum of 16 mesh groups is supported per VPLS...
MPLS technology is evolving, with more services being offered using MPLS connectivity. Junos OS features are also evolving to implement these services on Juniper Networks routers. The most common MPLS connectivity services include: Virtual Private LAN Service (VPLS) Layer 3 virtual...
Question What are the Juniper Networks solutions for Metro Ethernet Forum (MEF) 6.1 Ethernet services definitions? Answer The following are the Juniper Networks solutions for Metro Ethernet Forum (MEF) 6.1 Ethernet services definitions: Ethernet private line (EPL) and Ethernet...
Question How does qualified learning for virtual private LAN service operate? Answer The following illustration shows a sample topology used to answer this question: Traffic type and direction: unknown unicast from CE1 VLAN700 to CE2 VLAN700. In this example, first...
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Question What is the maximum number of VPLS instances supported, and the maximum number of sites supported per VPLS instance, on MX Series routers? Answer The maximum number of VPLS instances supported on MX Series routers is 8,000. This number is derived as follows: The...