I have a CCR1009-8G-1S-1S+ that looses link on ports 1-4 at the same
time, we have swapped out the router and the second one does it as well.
As you can see below it appears to be something with the switchchip causing the ports to flap.
jan/12 09:27:01 interface,info 1 - Uplink link down
jan/12 09:27:01 interface,info 2 - To Switch link down
jan/12 09:27:01 interface,info 3 - link down
jan/12 09:27:01 interface,info 4 - link down
jan/12 09:27:03 interface,info 3 - link up (speed 100M, full duplex)
jan/12 09:27:03 interface,info 4 - link up (speed 100M, full duplex)
jan/12 09:27:05 interface,info 1 - Uplink link up (speed 1G, full duplex)
jan/12 09:27:05 interface,info 2 - To Switch link up (speed 1G, full duplex)
jan/12 09:46:58 interface,info 1 - Uplink link down
jan/12 09:46:58 interface,info 2 - To Switch link down
jan/12 09:46:58 interface,info 3 - link down
jan/12 09:46:58 interface,info 4 - link down
jan/12 09:47:00 interface,info 3 - link up (speed 100M, full duplex)
jan/12 09:47:00 interface,info 4 - link up (speed 100M, full duplex)
jan/12 09:47:02 interface,info 1 - Uplink link up (speed 1G, full duplex)
jan/12 09:47:02 interface,info 2 - To Switch link up (speed 1G, full duplex)
jan/12 10:22:37 interface,info 1 - Uplink link down
jan/12 10:22:37 interface,info 2 - To Switch link down
jan/12 10:22:37 interface,info 3 - link down
jan/12 10:22:37 interface,info 4 - link down
jan/12 10:22:39 interface,info 3 - link up (speed 100M, full duplex)
jan/12 10:22:39 interface,info 4 - link up (speed 100M, full duplex)
jan/12 10:22:41 interface,info 1 - Uplink link up (speed 1G, full duplex)
jan/12 10:22:41 interface,info 2 - To Switch link up (speed 1G, full duplex)