I have 2-off IE-3000-4TC access switches and a stacked 3750X in a REP ring with the following configuration;
3750X
rep admin vlan 31
int gi1/0/1
switchport mode trunk
switchport trunk native vlan 31
rep segment 1 edge primary
int gi2/0/1
switchport mode trunk
switchport trunk native vlan 31
rep segment 1 edge preferred
IE-3000-4TC
rep admin vlan 31
int range gi1/1-2
switchport mode trunk
switchport trunk native vlan 31
rep segment 1
IE-3000-4TC
rep admin vlan 31
int range gi1/1-2
switchport mode trunk
switchport trunk native vlan 31
rep segment 1
show rep top
3750X gi1/0/1 Pri Open
IE-3000-4TC gi1/1 Open
IE-3000-4TC gi1/2 Open
IE-3000-4TC gi1/1 Open
IE-3000-4TC gi1/2 Open
3750X gi2/0/1 Sec Alt
When I remove either link connecting the IE-3000-4TC access switches to the edge ports of the 3750X, REP converges successfully. However if I remove the trunk link between the 2 IE-3000-4TC access switches, the Alt port does not open, REP does not converge and I lose the second IE-3000-4TC access switch from the ring.
Any advice would be greatly appreciated.
