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Re: Meraki Z3 and MX - Ethernet port carrier change

by in Security & SD-WAN
‎Feb 24 2024 10:13 AM
‎Feb 24 2024 10:13 AM
Ethernet 0, the WAN port to ISP internet modem.  Every few hours there are three messages within a four seconds.  The first is "device: port0, carrier: false", followed by "device: port0, carrier: true", and then this message again "device: port0, carrier: false". This could be a false positive or some other non-impacting message because I see it on Meraki where users are complaining and on the ones that are not having issues.  The explanation that this is a physical connectivity alert doesn't add up. ... View more

Re: Meraki Z3 and MX - Ethernet port carrier change

by in Security & SD-WAN
‎Feb 24 2024 9:51 AM
‎Feb 24 2024 9:51 AM
RaphaelL - Thank you for the advice.  We have opened a support case with TAC.  TAC has pointed to some other things that we have taken action on and has not improved or resolved our issue.  TAC is not giving much info on the Ethernet port carrier change messages.  They have repeated the same physical connectivity line, but again this cannot be an issue with all of the thousands of appliances we have deployed and all show the same message.  ... View more

Meraki Z3 and MX - Ethernet port carrier change

by in Security & SD-WAN
‎Feb 24 2024 9:11 AM
‎Feb 24 2024 9:11 AM
I am confused by an issue with many teleworkers using Z3 and MX64 & 67 for home setups.  We have approximately 3000 active peers distributed between three MX250s.  Many teleworkers complain about lag and freezing on Citrix applications and IP phones.  Looking at the MX250s, they are running clean with no evidence of utilization issues.  This is also not happening to everyone who is peered to an MX250.   When I look at logs for the teleworker Z3 or MX appliance, I only see a lot of "Ethernet port carrier change" messages.  These usually range from every few hours to more frequently.  I know all the posts relay that this is a physical connectivity issue.  I find that hard to be accurate as we have swapped out cables for some with no change.  Also, I see this message on just about everyone's appliances, even those who do not complain of lag issues.  It just isn't possible that hundreds of users have faulty patch cables.  I do not see these messages on the MX250 hubs.   Any advice? ... View more
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