Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.2(6b) (OL-27554-03 D0, December 21, 2013)

Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.2(6b)

OL-27554-03

Limitations and Restrictions

• RSPAN Traffic Not Supported on CTS Ports on 8-Gbps Switching Modules, page 36

• I/O Accelerator Feature Limitations, page 37

• Support for FCIP Compression Modes, page 37

• Saving Copies of the Running Kickstart and System Images, page 37

• Configuring Buffer Credits on a Generation 2 or Generation 3 Module, page 37

• Features Not Supported on the Cisco MDS 9148 Switch, page 38

• PPRC Not Supported with FCIP Write Acceleration, page 38

• Configuring a Persistent FCID in an IVR Configuration with Brocade Switches, page 38

SME Quorum

You cannot change the quorum or the SME master node during a master key rekey. If a change occurs

during the smart card portion of the operation, the master key rekey operation will fail and must be

repeated from the beginning.

OUI Mismatch for SME Tape Targets

If Cisco DCNM does not discover all expected tape targets, check the sme.log to identify an OUI

mismatch. Look for a message like the following:

2012.04.09 21:15:50 WARN [SME] skipped target 50:06:0b:00:00:b8:e4:b0 due to explicit

type mismatch. Expect: 240 found: 228. If this is an error update your OUI definitions

To correct this issue, manually add the OUI definitions to the server.properties file. The format is as

follows:

mds)

# for example: newOUIs=0x00E069 JNI h|d; 0x000ded Cisco m;\

# 0x006069 Brocade s;

newOUIs=

FCIP Performance Drop

FCIP performance can drop in a topology where the round-trip time (RTT) delay is configured at 80 ms,

IPSec is enabled, and write acceleration (WA) is not used.

FCoE Module

• In Cisco MDS NX-OS Release 5.2(x), you cannot install a FCoE module in a switch that is running

DMM, SME, or IOA.

• Link traps for FCoE devices are sent only when a VFC interface flaps.