Layer 2 Circuit Standards

The JUNOS software substantially supports the following Layer 2 circuit standards:

Internet draft draft-martini-l2circuit-encap-mpls-07.txt, Encapsulation Methods for Transport of Layer 2 Frames Over IP and MPLS Networks

The JUNOS software has the following exceptions:

A packet with a sequence number of 0 is treated as out of sequence.
- Any packet that does not have the next incremental sequence number is considered out of sequence.
- When out-of-sequence packets arrive, the expected sequence number for the neighbor is set to the sequence number in the Layer 2 circuit control word.
Internet draft draft-martini-l2circuit-trans-mpls-14.txt, Transport of Layer 2 Frames Over MPLS.

These drafts are available on the IETF Web site at http://www.ietf.org/.