bgp_graceful_restart_test

RT-1.4: BGP Graceful Restart

BGP Graceful Restart

Establish BGP sessions between:
- ATE port-1 and DUT port-1
- ATE port-2 and DUT port-2
Validate received capabilities at DUT and ATE reflect support for graceful restart.
For IPv4 and IPv6 routes:
- (Restarting speaker) Advertise prefixes between the ATE ports, through the DUT. Trigger DUT session restart by disconnecting TCP session between DUT and ATE (this may be achieved by using an ACL), determine that packets are:
  - Forwarded between ATE port-1 and DUT port-1 for the duration of the specified stale routes time.
  - Dropped after the stale routes timer has expired.
  - Forwarded again between ATE port-1 and DUT port-1 after the session is re-established.
- (Receiving speaker) Advertise prefixes between the ATE ports, through the DUT. Trigger session restart by disconnecting the BGP session from ATE port-2.
  - Ensure that prefixes are propagated to ATE port-2 during the restart.
  - Ensure that traffic can be forwarded between ATE port-1 and ATE port-2 during stale routes time.
  - Ensure that prefixes are withdrawn, and traffic cannot be forwarded between ATE port-1 and port-2 after the stale routes time expires.

For prefixes:

/network-instances/network-instance/protocols/protocol/bgp/peer-groups/peer-group
/network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor

Parameters: