HP B-series Fabric OS 7.0.2d Release Notes (5697-2822, August 2013--includes all 7.0.x versions)

ICLs on HP StorageWorks DC SAN Backbone Director Switch /HP StorageWorks DC04 SAN
Director Switch
• If an HP StorageWorks DC SAN Backbone Director Switch with an 8-link ICL license is
connected to an HP StorageWorks DC SAN Backbone Director Switch with a 16-link license,
the HP StorageWorks DC SAN Backbone Director Switch with the 16-link license reports
enc_out errors. The errors are harmless, but continue to increment. These errors are not reported
if an HP StorageWorks DC SAN Backbone Director Switch with a 16-link license is connected
to an HP StorageWorks DC04 SAN Director Switch with only 8-link ICL ports.
• If ICL ports are disabled on only one side of an ICL link, the enabled side may see enc_out
errors.
Native Connectivity (M-EOS interoperability)
A switch running Fabric OS 7.0.0a or later cannot form E_Port connectivity with any M-EOS
platform. A switch running Fabric OS 7.0.0a or later can operate only in Brocade native mode
(interopmode 0). Connectivity between M-EOS platforms and a switch running Fabric OS 7.0.0a
or later is supported via FCR only.
Port Mirroring
• On the HP 8/80 Base 48-ports Enabled SAN Switch, the port mirroring feature has a limitation
where all port mirror resources must stay within the same ASIC port group. The resources are
the configured mirror port, Source Device, and Destination Device or ISL, if the Destination
Device is located on another switch. The ASIC port groups are 0-15, 16-31, 32-47, 48-63,
and 64-79. The routes are broken if the port mirror resources are spread across multiple port
groups.
• Port Mirroring is not supported on the Brocade HP 1606 SAN Extension Switch.
Port Statistics
On the 16 Gbps switch platform FC switch ports, the enc_in (number of encoding errors inside
of frames) and enc_out (number of encoding errors outside of frames) counters are not updated
when a port is operating at either 10 Gbps or 16 Gbps speeds. This is due to the different encoding
scheme used at 10 Gbps and 16 Gbps speeds when compared to 8 and 4 Gbps speeds. Because
of this, Fabric Watch alerts and Port Fencing based on the ITW (Invalid Transmission Word)
thresholds do not function because these enc_in and enc_out counters are not incremented
when operating at either 10 Gbps or 16 Gbps (ITW is computed based on enc_in and enc_out
counters). Also, any CLI or GUI that displays enc_in and enc_out counters do not show these
counters incrementing when a port is operating at either 10 Gbps or 16 Gbps. Both enc_in and
enc_out counters contain valid information when a 16 Gbps-based switch platform FC port is
operating at speeds other than 10 Gbps and 16 Gbps.
SNMP
Although the following OIDs are present in the MIBs, they are not functional in Fabric OS 7.0.2d
or later:
• swDeviceStatusTrap
• swConnUnitPCSErrorCounter in swConnUnitPortStatExtensionTable
• swDeviceStatus in swSystemTable
• Addition of swConnUnitPortCapableSpeeds
Virtual Fabrics
• When creating logical fabrics that include switches that are not virtual fabrics capable, it is
possible to have two logical switches with different FIDs in the same fabric connected via a
Important notes and recommendations 27