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Cisco Bug: CSCtc57325 - 32 port 10GE: Traffic stops with CTS under specific traffic conditions

Last Modified

Mar 27, 2015

Products (12)

  • Cisco Nexus 7000 Series Switches
  • Cisco MDS 9124 Multilayer Fabric Switch
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco MDS 9216i Multilayer Fabric Switch
  • Cisco MDS 9222i Multiservice Modular Switch
  • Cisco MDS 9134 Multilayer Fabric Switch
  • Cisco MDS 9509 Multilayer Director
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco MDS 9506 Multilayer Director
  • Cisco MDS 9124e 4G FC HP Blade Switch
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Known Affected Releases

4.2(3)

Description (partial)

Symptom:
On a N7K-M132XP-12 traffic might stop and CTS protocol handshake fails.

Conditions:
This failure is specific to a N7K-M132XP-12 and does not apply to any other I/O module. It only occurs when CTS is enabled and SGACLs/SGTs are propagated.

Workaround(s):
For pure 802.1AE configurations (i.e. link encryption but no SGACLs/SGTs) configure 'no propagate-sgt' under the 'cts manual' interface configuration. For interfaces running TrustSec with SGACLs/SGTs a FPGA/EPLD upgrade is required.
 
Resolution:
Upgrade FPGA on a N7K-M132XP-12 to v1.13 (decimal) or later.



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