Release Notes

Fabric OS v7.2.1e Release Notes v1.0 Page 31 of 82
chassisshow command has a “Power Usage (Watts):” field that shows the actual power
consumed in real-time on 16G blades.
• Class 3 frames that have been trapped to CPU will be discarded in the following scenarios on
DCX/DCX-4S/DCX 8510 during the following conditions:
• HA failover on DCX/DCX-4S/DCX 8510 platforms while running FOS v7.0 or later firmware
• Firmware upgrade from v7.0 to a later release on Brocade 300, 5100, VA-40FC, 5300,
6510
• Firmware upgrade from v7.0.1 to a later release on Brocade 6505
• Firmware upgrade from v7.1.0 to a later release on Brocade 6520
• The QSFP information in the sfpshow output will indicate the ID field as all zeros. This is as
designed.
ras080:FID128:root> sfpshow 5/32
QSFP No: 8 Channel No:0
Identifier: 13 QSFP+
Connector: 12 MPO Parallel Optic
Transceiver: 0000000000000000 16_Gbps
Transceiver: 0000000000000000 16_GbpsTransceiver: 0000000000000000 16_Gbps
Transceiver: 0000000000000000 16_Gbps id
idid
id
• It is recommended that for directors with more than 300 E_Ports, the switch be disabled prior
to executing the “switchCfgTrunk” command (used to disable or enable trunking on the
switch).
• During non-disruptive firmware upgrades, E_Ports in R-RDY mode may cause some frame
drops on the E-port links.
• The Brocade Network Advisor seed switch should always have the highest FOS version used in
the fabric.
• For login authentication through RADIUS, Brocade switch should be able to reach RADIUS
servers through TCP authentication port (default 1812) and accounting port (default 1813).
Both of these ports must be kept open in any firewall settings.
• When a firmware upgrade on a Brocade 6510 switch initiated through Brocade Network
Advisor results with “failed to enforce new iptable rules” error message, the switch could be
inaccessible via SSH and/or Telnet. Activating (from console) a new policy with rules of
default active policy will restore access to the switch.
• Support for the 16G 2km ICL QSFP optics has the following notes:
• The maximum number of ICL ports with the 2km ICL QSFP can be supported in an 8510
backbone switch with the two kilometer distance is 10, which requires 16 credits
configured per Virtual Channel. More ports can be supported with less distance and fewer
credits. Full 16 ICL ports can be supported with 11 credits configured per Virtual Channel
for upto 1,375 meters.
• Before the ICL ports with the 2km ICL QSFP come online, switchShow CLI command may
display the port states as in-sync or shifting in and out of port fault.
• The sfpShow CLI command displays the 16G 2km ICL QSFP incorrectly as “Length Cu: 3
(units m)” instead of the correct value 0.
• Firmware downgrade from FOS v7.2.1e to a prior version is blocked if ICL ports with 2km
ICL QSFP optics are present in the switch.