I've noticed that if I use a persistent image file and for some reason it gets corrupted (powering off abnormally) that I'll get a bunch of filesystem errors in dmesg. I can fix it by booting with the "noimage" cheat code, like "knoppix64 2 noimage" and then run "fsck.ext2 /mnt-system/KNOPPIX/knoppix-data.img" and then "sudo reboot".
It'd be really nice if there were an automatic check of the ext2 image when knoppix boots. It would also let you know if errors have crept into your filesystem since knoppix still works but you see weird messages like "unable to write /etc/fstab".
Cisco Nexus 48-Port 10G SFP+ Switch N9K-9396PX w/ 9K-M12PQ 12-Port 40G QSFP
$249.99
Silicom (PE210G2SPI9A-XR) 10Gb Dual Port SFP+ PCIe Ethernet Adapter Low Profile
$19.99
Cisco Catalyst 48-Port Manage Gigabit Switch w/ 2x 10G SFP+ WS-C2960S-48FPD-L
$79.99
SFP-10G-LR Compatible 10GBase-LR SFP+ LR Transceiver 10G 1310nm SMF up ot 10km
$45.00
Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module 10-2415-03
$8.00
NEW Sealed Cisco SFP-10G-LR 10GBASE-LR SFP+ 1310nm 10km *US Shipping*
$18.00
Cisco SFP-10G-LR-S SFP+ 1310nm 10km DOM Transceiver Module 10-3107-01 - 1 Year
$41.59
CISCO SFP-GE-T Copper Transceiver Module GENUINE
$8.05
LOT OF 20 Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module
$89.00
Cisco Meraki MA-SFP-10GB-SR 10G SFP+ SR 850nm 300m LC MMF
$29.99