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A quick update. I just heard from Arista support that the interface flap last week was the result of a new bug that they are currently working out the details of. At the moment I have no further information about the details. -----Original Message----- From: Jeremy Lumby <[log in to unmask]> Sent: Friday, February 16, 2024 9:44 AM To: 'MICE Discuss' <[log in to unmask]> Subject: RE: [MICE-DISCUSS] MICE interface flap It will be interesting when Arista responds. It sounds very similar. The week before we upgraded to 4.30.5M to prepare for the new card (7500R2-36CQ-LC). -----Original Message----- From: MICE Discuss <[log in to unmask]> On Behalf Of Frank Bulk Sent: Friday, February 16, 2024 9:03 AM To: [log in to unmask] Subject: Re: [MICE-DISCUSS] MICE interface flap Thanks for sharing, we definitely saw this, too. We had a *somewhat* similar issue last year that when we slotted a card into our 7504 and the other card rebooted. Turned out to be some kind of mesh bug. Bug ID 765840 resolved in 4.30.1. Frank -----Original Message----- From: MICE Discuss <[log in to unmask]> On Behalf Of Jeremy Lumby Sent: Wednesday, February 14, 2024 4:57 PM To: [log in to unmask] Subject: Re: [MICE-DISCUSS] MICE interface flap I am still sorting out the details. But it was related to the card swap scheduled for today. The card was in up and running without an issue for several minutes, however when I programmed/moved the first link to it, all of the other cards in the core switch started rebooting themselves. I am opening a ticket with Arista since we seem to be stable at the moment. -----Original Message----- From: MICE Discuss <[log in to unmask]> On Behalf Of Chris Wopat Sent: Wednesday, February 14, 2024 4:56 PM To: [log in to unmask] Subject: [MICE-DISCUSS] MICE interface flap WiscNet's remote switch flapped twice within the last half hour: Feb 14 16:34:16.657 2024 s-minneapolis-hub mib2d[8448]: %DAEMON-4-SNMP_TRAP_LINK_DOWN: ifIndex 540, ifAdminStatus up(1), ifOperStatus down(2), ifName et-0/0/23 Feb 14 16:39:29.456 2024 s-minneapolis-hub mib2d[8448]: %DAEMON-4-SNMP_TRAP_LINK_DOWN: ifIndex 540, ifAdminStatus up(1), ifOperStatus down(2), ifName et-0/0/23 Aggregate traffic definitely shows a hit: https://link.edgepilot.com/s/5abcf6c9/_Ox0o9rFAUimx0FLu4zJ0g?u=http://micelg.usinternet.com/export/graph_2625.html Curious if others experienced flaps or could reveal logs from the core Arista? -- Chris Wopat Network Engineer, WiscNet [log in to unmask] 608-210-3965 Links contained in this email have been replaced. If you click on a link in the email above, the link will be analyzed for known threats. If a known threat is found, you will not be able to proceed to the destination. If suspicious content is detected, you will see a warning.