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On Fri, Sep 06, 2019 at 11:51:41PM +0000, Frank Bulk wrote: >For some reason at 5:38 pm we (AS18883, FiberNet) lost IPv4 and IPv6 peering with both of MICE RR's and Hurricane Electric and it's been unstable since then. > >All our other peers with MICE are fine. > >I didn't change any configuration, even though the "bad AS number" note in some of the error messages would suggest that. We've been getting a lot of these.. Sep 3 18:02:14 micemn-01 bird6: NASN_18883: Received: Connection collision resolution Sep 3 18:02:18 micemn-01 bird6: NASN_18883: Received: Connection collision resolution Sep 3 18:02:23 micemn-01 bird6: NASN_18883: Received: Connection collision resolution Sep 3 18:02:28 micemn-01 bird6: NASN_18883: Received: Connection collision resolution And these 2019-09-07 16:08:15NASN_53347: Error: Bad peer AS: 18883 As well as I suppose the expected 2019-09-07 16:08:16 NASN_18883: Received: Administrative shutdown 2019-09-07 16:08:20 NASN_18883: Received: Administrative shutdown 2019-09-07 16:08:24 NASN_18883: Received: Administrative shutdown If you have 18883 link shutdown. But with the first and second errors, I see you have two AS's, and two IPs coming across Eth10 on the switch. The middle error message seems to imply that the configuration we have setup for AS 53347 on 206.108.255.67 is receiving a peer attempt for 18883 which is configured to talk on 206.108.255.133 on our side. Could these two be mixed up at all? -- Doug McIntyre <[log in to unmask]> ~.~ ipHouse ~.~ Network Engineer/Provisioning/Jack of all Trades