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Re: High CRC Error's Across Multiple MS-120-48 ports

by in Switching
‎Jul 16 2018 1:37 PM
‎Jul 16 2018 1:37 PM
Thanks for the input gents, I have to find time to go onsite to test cabling with our tester. I don't forsee cabling on 20 different ports being the issue but just to eliminate variables I understand the need for testing. If that all tests fine I will try moving these devices onto ports 1-24 on switch to eliminate a hardware failure on the 2nd ASIC as all on 1-24 appear fine.  ... View more

Re: High CRC Error's Across Multiple MS-120-48 ports

by in Switching
‎Jul 16 2018 8:50 AM
‎Jul 16 2018 8:50 AM
I opened ticket with meraki support as you suggested just to check for any known issues. Can't rule out cabling just yet but I'll try to keep updated as far as what the resolution is for this going forward. ... View more

Re: High CRC Error's Across Multiple MS-120-48 ports

by in Switching
‎Jul 16 2018 7:03 AM
‎Jul 16 2018 7:03 AM
I verified all firmware is up-to-date with stable releases on MX, MR, & MS. ... View more

Re: High CRC Error's Across Multiple MS-120-48 ports

by in Switching
‎Jul 16 2018 6:57 AM
‎Jul 16 2018 6:57 AM
There's close to 20 ports with a range of CRC error's, some being constant, others are intermittent. No commonalities except they all go to same patch panel, same switch. I find it hard to believe that a wiring issue would be causing this as it was all tested once wiring was done. That said next time I'm onsite I will try swapping some cables and running cable tests. Thanks for the ideas ... View more

High CRC Error's Across Multiple MS-120-48 ports

by in Switching
‎Jul 16 2018 6:30 AM
‎Jul 16 2018 6:30 AM
Anybody have any experience troubleshooting CRC error issues across multiple switch ports? Seems to vary from day-to-day what ports are having the issues and it's across multiple OS and devices including an MR33, windows server 2012, WIN7 pc's, and more. Ran cable tests with no issues, I find it hard to believe that this many devices are failing to auto-negotiate correct speed/duplex settings or have failing NIC's. I also wouldn't think that this many devices would have corrupted files or errors causing it. Any help is appreciated.  ... View more
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