An L2VPN (draft-kompella-mpls-l2vpn) is established between two PE routers to provide connectivity between
two customer sites.
Which two statements related to this deployment are true? (Choose two.)
A.
BGP must be used for the control plane communications.
B.
Kompella encapsulation is used in the data plane communications.
C.
LDP must be used for the control plane communications.
D.
Martini encapsulation is used in the data plane communications.
Explanation:
Junos OS substantially supports t RFC 4447, Pseudowire Setup and Maintenance Using the Label Distribution
Protocol (LDP).
Martini uses directed LDP to signal the VPN label between the PE devices, Kompella uses BGP to signal the
VPN label between the PE devices.
https://www.juniper.net/documentation/en_US/junos15.1/topics/reference/standards/layer-2-
circuit.html
I believe the answer is AD
Kompella can use martini encapsulation in the data plane because it helps in preserving and padding the information in the original L2 frame as it is relayed between PE devices.
Agreed
A, D
A & B,
Kompella uses MPBGP, for that reason is Instance type L2vpn.
Martini -> Ldp.
CD is correct answer
Sorry AD is correct answer
A&D
According to Draft Kompella,
“There are two alternative means of signalling the MPLS-based Layer 2 VPNs described in this document: using LDP ([LDP]) or using BGP version 4 ([BGP]).”
https://tools.ietf.org/html/draft-kompella-mpls-l2vpn-02