User guide

◦ Modified QoS percentages
◦ 10 GigE ARL
◦ IP Configuration where multiple GigEs have same subnet values
◦ A tunnel configuration on 1GE ports that has more than 4 circuits
◦ Teradata emulation
◦ Circuits configured explicitly to be listeners or initiators
FCoE/CEE (HP 2408 24-10 GbE w/8-8 Gbps FC Base FCoE Switch and HP DC SAN Director
10/24 FCoE Blade)
• When upgrading an HP 2408 24-10 GbE with 8-8 Gbps FC Base FCoE switch or an HP
StorageWorks DC SAN Backbone Director Switch/HP StorageWorks DC04 SAN Director
Switch with one or more HP DC SAN Director 10/24 FCoE Blades from Fabric OS 6.x to
Fabric OS 7.0.0a or later, the user should carefully review Chapter 5 of the Fabric OS 7.0.0
Converged Enhanced Ethernet Administrator’s Guide.
• Fabric OS 7.0.0x supports a new optimized model for provisioning FCoE with fewer
configuration steps to enable FCoE on DCB ports. These changes do not allow the HP 2408
24-10 GbE w/8-8 Gbps FC Base FCoE Switch to retain FCoE configuration information
following an upgrade to Fabric OS 7.0.0c. After the upgrade to Fabric OS 7.0.0c, all FCoE
edge ports must be provisioned with the new model before any FIP FLOGIs take place.
• Although including HP 2408 24-10 GbE w/8-8 Gbps FC Base FCoE Switch in the path of TI
(Traffic Isolation) and ETI (Enhanced Traffic Isolation) Zones is not prohibited, it is not supported.
Configuring HP 2408 24-10 GbE w/8-8 Gbps FC Base FCoE Switch in the TI/ETI Zone path
is not recommended and results in undefined behavior.
• Ethernet L2 traffic with xSTP Hello timer set to less than or equal to 3 seconds may experience
momentary traffic disruption during HA failover.
• The HP 2408 24-10 GbE w/8-8 Gbps FC Base FCoE Switch balances the FCoE bandwidth
across all six port groups (each port group contains four ports). To get optimum performance
for FCoE traffic, HP recommends that the user distribute server CNA connections across these
six port groups.
• Hot plugging a CP with firmware level earlier than Fabric OS 6.3.0 into an HP StorageWorks
DC SAN Backbone Director Switch or HP StorageWorks DC04 SAN Director Switch with an
active HP DC SAN Director 10/24 FCOE Blade results in the new standby CP not coming
up.
• When operating in Converged Mode, tagged traffic on the native VLAN of the switch interface
is processed normally. The host should be configured not to send VLAN tagged traffic on the
switch’s native VLAN.
• When operating in Converged Mode, tagged frames coming with a VLAN tag equal to the
configured native VLAN are dropped.
• The Converged Network Adapter (CNA) may lose connectivity to the HP 2408 24-10 GbE
w/8-8 Gbps FC Base FCoE Switch/HP DC SAN Director 10/24 FCOE Blade if the CNA
interface is toggled repeatedly over time. This issue is related to the CNA and rebooting the
CNA restores connectivity.
• The HP 2408 24-10 GbE w/8-8 Gbps FC Base FCoE Switch and HP DC SAN Director 10/24
FCOE Blade support only one CEE map on all interfaces connected to CNAs. HP does not
recommend CEE map for use with non-FCoE traffic. HP recommends QoS commands for
interfaces carrying non-FCoE traffic.
• Before upgrading to Fabric OS 7.0.0c, if the CEE map default value already exists, the same
default value is preserved after upgrading to Fabric OS 7.0.0c. However, if the CEE map
Important notes and recommendations 31