update:
We decided for our architecture REP is not required. We made a test setup with redundant controller racks, switchs, ETAPS, AENTRs. We set up the redundant switches as supervisors and EN2TRs as backup supervisors. Having trouble as supervisors keep on switching between each other(see below logs). The original plan was to set the EN2TR as supervisor, thinking may need to go back.
Feb 23 11:51:41.152 UTC: %UDLD-4-UDLD_PORT_DISABLED: UDLD disabled interface Gi1/1, aggressive mode failure detected
Feb 23 11:51:41.152 UTC: %PM-4-ERR_DISABLE: udld error detected on Gi1/1, putting Gi1/1 in err-disable state
Feb 23 11:51:42.155 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1, changed state to down
Feb 23 11:51:43.155 UTC: %LINK-3-UPDOWN: Interface GigabitEthernet1/1, changed state to down
Feb 23 11:52:11.149 UTC: %PM-4-ERR_RECOVER: Attempting to recover from udld err-disable state on Gi1/1
Feb 23 11:52:13.187 UTC: %LINK-3-UPDOWN: Interface GigabitEthernet1/1, changed state to up
Feb 23 11:52:13.187 UTC: %DLR-6-SUPSTATECHG: Ring 1: The device is now the ACTIVE supervisor
Feb 23 11:52:13.191 UTC: %DLR-6-RINGNORMAL: Ring 1: The DLR ring is now in NORMAL state
Feb 23 11:52:13.191 UTC: %DLR-2-RINGFAULT: Ring 1: The DLR ring is now in FAULT state
Feb 23 11:52:13.194 UTC: %DLR-2-SUPPARTIALFAULT: Ring 1: The supervisor device is now in PARTIAL FAULT state
Feb 23 11:52:14.190 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1, changed state to up
Feb 23 11:52:30.647 UTC: %DLR-6-SUPSTATECHG: Ring 1: The device is now the ACTIVE supervisor
Feb 23 11:52:30.647 UTC: %DLR-6-RINGNORMAL: Ring 1: The DLR ring is now in NORMAL state
Feb 23 11:52:30.650 UTC: %DLR-2-RINGFAULT: Ring 1: The DLR ring is now in FAULT state
Feb 23 11:52:30.650 UTC: %DLR-6-SUPSTATECHG: Ring 1: The device is now the ACTIVE supervisor
Feb 23 11:52:30.650 UTC: %DLR-6-RINGNORMAL: Ring 1: The DLR ring is now in NORMAL state
Feb 23 11:52:30.654 UTC: %DLR-2-RINGFAULT: Ring 1: The DLR ring is now in FAULT state
Feb 23 11:52:30.657 UTC: %DLR-2-SUPPARTIALFAULT: Ring 1: The supervisor device is now in PARTIAL FAULT state
Feb 23 11:52:40.679 UTC: %DLR-6-SUPSTATECHG: Ring 1: The device is now the ACTIVE supervisor
Feb 23 11:52:40.679 UTC: %DLR-6-RINGNORMAL: Ring 1: The DLR ring is now in NORMAL state
Feb 23 11:52:40.682 UTC: %DLR-2-RINGFAULT: Ring 1: The DLR ring is now in FAULT state
Feb 23 11:52:40.682 UTC: %DLR-2-SUPPARTIALFAULT: Ring 1: The supervisor device is now in PARTIAL FAULT state
Feb 23 11:53:17.510 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/6, changed state to down
Feb 23 11:53:18.513 UTC: %LINK-3-UPDOWN: Interface FastEthernet1/6, changed state to down
We decided for our architecture REP is not required. We made a test setup with redundant controller racks, switchs, ETAPS, AENTRs. We set up the redundant switches as supervisors and EN2TRs as backup supervisors. Having trouble as supervisors keep on switching between each other(see below logs). The original plan was to set the EN2TR as supervisor, thinking may need to go back.
Feb 23 11:51:41.152 UTC: %UDLD-4-UDLD_PORT_DISABLED: UDLD disabled interface Gi1/1, aggressive mode failure detected
Feb 23 11:51:41.152 UTC: %PM-4-ERR_DISABLE: udld error detected on Gi1/1, putting Gi1/1 in err-disable state
Feb 23 11:51:42.155 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1, changed state to down
Feb 23 11:51:43.155 UTC: %LINK-3-UPDOWN: Interface GigabitEthernet1/1, changed state to down
Feb 23 11:52:11.149 UTC: %PM-4-ERR_RECOVER: Attempting to recover from udld err-disable state on Gi1/1
Feb 23 11:52:13.187 UTC: %LINK-3-UPDOWN: Interface GigabitEthernet1/1, changed state to up
Feb 23 11:52:13.187 UTC: %DLR-6-SUPSTATECHG: Ring 1: The device is now the ACTIVE supervisor
Feb 23 11:52:13.191 UTC: %DLR-6-RINGNORMAL: Ring 1: The DLR ring is now in NORMAL state
Feb 23 11:52:13.191 UTC: %DLR-2-RINGFAULT: Ring 1: The DLR ring is now in FAULT state
Feb 23 11:52:13.194 UTC: %DLR-2-SUPPARTIALFAULT: Ring 1: The supervisor device is now in PARTIAL FAULT state
Feb 23 11:52:14.190 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1, changed state to up
Feb 23 11:52:30.647 UTC: %DLR-6-SUPSTATECHG: Ring 1: The device is now the ACTIVE supervisor
Feb 23 11:52:30.647 UTC: %DLR-6-RINGNORMAL: Ring 1: The DLR ring is now in NORMAL state
Feb 23 11:52:30.650 UTC: %DLR-2-RINGFAULT: Ring 1: The DLR ring is now in FAULT state
Feb 23 11:52:30.650 UTC: %DLR-6-SUPSTATECHG: Ring 1: The device is now the ACTIVE supervisor
Feb 23 11:52:30.650 UTC: %DLR-6-RINGNORMAL: Ring 1: The DLR ring is now in NORMAL state
Feb 23 11:52:30.654 UTC: %DLR-2-RINGFAULT: Ring 1: The DLR ring is now in FAULT state
Feb 23 11:52:30.657 UTC: %DLR-2-SUPPARTIALFAULT: Ring 1: The supervisor device is now in PARTIAL FAULT state
Feb 23 11:52:40.679 UTC: %DLR-6-SUPSTATECHG: Ring 1: The device is now the ACTIVE supervisor
Feb 23 11:52:40.679 UTC: %DLR-6-RINGNORMAL: Ring 1: The DLR ring is now in NORMAL state
Feb 23 11:52:40.682 UTC: %DLR-2-RINGFAULT: Ring 1: The DLR ring is now in FAULT state
Feb 23 11:52:40.682 UTC: %DLR-2-SUPPARTIALFAULT: Ring 1: The supervisor device is now in PARTIAL FAULT state
Feb 23 11:53:17.510 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/6, changed state to down
Feb 23 11:53:18.513 UTC: %LINK-3-UPDOWN: Interface FastEthernet1/6, changed state to down