for security I did some configuration steps. The supervisories lost communication and now is one module disabled.
Which protocol they use to communicate with each other? VTP? BOOTP?
000160: Sep 15 12:01:32.823 MEST: %SYS-CLUSTER_MEMBER_14-6-CLOCKUPDATE: System clock has been updated from 12:01:32 UTC Mon Sep 15 2008 to 12:01:32 MEST Mon Sep 15 2008, configured from console by console.
000161: Sep 15 12:01:32.995 MEST: %SW_VLAN-CLUSTER_MEMBER_14-6-VTP_MODE_CHANGE: VLAN manager changing device mode from SERVER to TRANSPARENT.
000162: Sep 15 12:01:35.379 MEST: %C4K_REDUNDANCY-CLUSTER_MEMBER_14-6-INIT: Initializing as ACTIVE supervisor
000163: Sep 15 12:01:35.383 MEST: %C4K_REDUNDANCY-CLUSTER_MEMBER_14-3-COMMUNICATION: Communication with the peer Supervisor has been lost
greetings from bulgaria