VPN : Understanding Phase 1 message states

Picked up a very straightforward explanation on ISAKMP (IKE Phase 1) Negotiation states. All credits to tunnelsup.com

2018-02-12 10_05_56-ISAKMP (IKE Phase 1) status messages MM_WAIT_MSG# - TunnelsUP 2018-02-12 10_06_19-Cisco ASDM 7.1 for ASA - 115.187.137.58 2018-02-12 10_06_35-ISAKMP (IKE Phase 1) status messages MM_WAIT_MSG# - TunnelsUP 2018-02-12 10_06_47-ISAKMP (IKE Phase 1) status messages MM_WAIT_MSG# - TunnelsUP 2018-02-12 10_07_01-ISAKMP (IKE Phase 1) status messages MM_WAIT_MSG# - TunnelsUP