There are two minor changes in this PR:
* Adjust quagga's jinja template to enable bgp-gr functionality by default. Currently is only applicable to those devices tagged as TOR/T0.
* Ensure that no bgp-notification is sent out to remote-peers during bgpd shutdown events. The goal here is to make sure that remote-peers kick off bgp-gr-helper logic (i.e. retain restarting-router state), which can be only achieved if an ungraceful-shutdown (tcp pipe/socket down) is perceived. There are other approaches to accomplish this goal, such as draft-ietf-idr-bgp-gr-notification, but this one hasn't been implemented yet by Quagga/FRR.
Signed-off-by: Rodny Molina <rmolina@linkedin.com>
Modify minigraph parser output format so it fit DB schema
Modify configuration templates to fit new schema
Systemd services dependencies are modified so database starts before any configuration consumer
* [bgp] Save admin state and set default state to shutdown
* Set default behavior to no shutdown
* Add build option SHUTDOWN_BGP_ON_START
* Script change for default admin state to be on
* Address CR comments to bgp_neighbor script
* Fix script bug
- Extending SONiC building infrastructure to provide users
with greater flexibility, by allowing them to elect a
routing-stack different than the default one (quagga). The desired
routing-stack will be defined in rules/config file.
- As part of these changes I'm adding support for
Free-Range-Routing (FRR) stack. Quagga will continue to be
the default routing-stack.
Signed-off-by: Rodny Molina <rodny@linkedin.com>
