Release Notes
Fabric OS v7.3.0a Release Notes v2.0 Page 49 of 55
ras080:FID128:root> sfpshow 5/32
QSFP No: 8 Channel No:0
Identifier: 13 QSFP+
Connector: 12 MPO Parallel Optic
Transceiver: 0000000000000000 16_Gbps 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.
Firmware downgrade from FOS v7.3.0 with one or more ports enabled with the Flow
Generator feature as a SIM port will be blocked. The SIM ports configuration must first be
disabled.
Firmware upgrade to FOS v7.3.0 with one or more ports enabled with the Flow Generator
feature as a SIM port will be blocked. The SIM ports configuration must first be disabled.
FOS v7.3.0 includes a fix for defect 492340 where users may see frame drops on the back-
end edge and core ports with FS8-18 and FX8-24 blades in DCX 8510 chassis. This fix will
only take effect after the affected blades are powered off and on. After the fix takes effect, a
new credit allocation model leads to fewer credits available for long distance ports. If there
are long distance port configurations that have used up all the credits prior to applying this fix,
some long distance ports may experience degraded performance.
Firmware downgrade from FOS v7.3.0 will be blocked when any logical switch is configured
with in-flight encryption with FCAP protocol or SHA-256 hashing algorithm is used with FCAP or
DH-CHAP protocol. These configurations must be removed from all logical switches for
downgrade.