A layer 2 circuit (RFC 4447) is established between two PE routers to provide connectivity between two customer sites. Which two statements related to this deployment are true?

The correct answer is B. LDP must be used for the control plane communications. D. Martini encapsulation is used in the data plane communications. 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.

MPLS Layer 2 VPNs

Question

Options

AKompella encapsulation is used in the data plane communications.
BLDP must be used for the control plane communications.
CBGP must be used for the control plane communications.
DMartini encapsulation is used in the data plane communications.

How the community answered

(41 responses)

A
20% (8)
B
71% (29)
C
10% (4)

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.

Topics

#L2 circuit#RFC 4447#Martini encapsulation#LDP

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