I believe I have no connection (there's no light on the switch side when I connect the cable). I do not see any error messages. I'm using Scientific Linux 6.3 (RHEL clone).
1. I can try to upgrade but this seem to be even more fundamental than a driver problem.
2. I would like to try that but unfortunately I currently only have that cable.
3. I will check the but I don't think there are any tight bends.
Here are the messages right after the modprobe ixgbe if it's of any help:
ixgbe 0000:82:00.1: complete
ixgbe 0000:82:00.1: PCI INT B disabled
ixgbe 0000:82:00.0: complete
ixgbe 0000:82:00.0: PCI INT A disabled
ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 3.6.7-k
ixgbe: Copyright (c) 1999-2012 Intel Corporation.
ixgbe 0000:82:00.0: PCI INT A -> GSI 50 (level, low) -> IRQ 50
ixgbe 0000:82:00.0: setting latency timer to 64
ixgbe 0000:82:00.0: irq 179 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 180 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 181 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 182 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 183 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 184 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 185 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 186 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 187 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 188 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 189 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 190 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 191 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 192 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 193 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 194 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 195 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 196 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 197 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 198 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 199 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 200 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 201 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 202 for MSI/MSI-X
ixgbe 0000:82:00.0: irq 203 for MSI/MSI-X
ixgbe 0000:82:00.0: Multiqueue Enabled: Rx Queue count = 24, Tx Queue count = 24
ixgbe 0000:82:00.0: (PCI Express:5.0GT/s:Width x8) 90:e2:ba:3a:6e:04
ixgbe 0000:82:00.0: MAC: 2, PHY: 10, SFP+: 7, PBA No: E68793-005
ixgbe 0000:82:00.0: Intel(R) 10 Gigabit Network Connection
ixgbe 0000:82:00.1: PCI INT B -> GSI 52 (level, low) -> IRQ 52
ixgbe 0000:82:00.1: setting latency timer to 64
ixgbe 0000:82:00.1: irq 204 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 205 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 206 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 207 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 208 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 209 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 210 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 211 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 212 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 213 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 214 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 215 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 216 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 217 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 218 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 219 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 220 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 221 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 222 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 223 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 224 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 225 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 226 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 227 for MSI/MSI-X
ixgbe 0000:82:00.1: irq 228 for MSI/MSI-X
ixgbe 0000:82:00.1: Multiqueue Enabled: Rx Queue count = 24, Tx Queue count = 24
ixgbe 0000:82:00.1: (PCI Express:5.0GT/s:Width x8) 90:e2:ba:3a:6e:05
ixgbe 0000:82:00.1: MAC: 2, PHY: 1, PBA No: E68793-005
ixgbe 0000:82:00.1: Intel(R) 10 Gigabit Network Connection
