Provide a way for the data plane to indicate pseudowire
status (such as: not forwarding, AC failure).
On a data plane pseudowire install failure, data plane
sets the pseudowire status.
Zebra relays the pseudowire status to LDP.
LDP includes the pseudowire status in the LDP notification
to the LDP peer.
Signed-off-by: Karen Schoener <karen@voltanet.io>
If we don't do this, we'll never trigger the backoff exponential timer
since it's impossible to distinguish between Initialization NAK's and
general errors.
Also:
* Implement some missing bits from RFC 5036;
* remove superfluous log message in session_shutdown()
(send_notification() logs that we're sending a fatal notification).
Regression introduced by commit 8819fc3.
Fixes the following ANVL LDP regressions: 6.19 and 6.21.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
This patch per-se doesn't introduce any useful functionality, but prepares
the ground for new enhancements to ldpd (i.e. implementation of new RFCs
that make use of LDP capabilities).
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
Be more clever and trigger the PDU SENT event inside send_notification()
when tcp->nbr is set. This way we can eliminate send_notification_nbr()
and always use send_notification() instead.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
