Hitachi Compute Blade 2000 User Manual page 1353

(2) Differences between physical and virtual LAN controllers
LPAR manager provides functions equivalent to installed physical LAN controller,
but does not guarantee the same specifications, performance, and compatibility as
the physical LAN controller
The following table summarizes the differences from physical LAN controllers.
Item
WoL (Wakeup on WoL function is supported only by shared NICs.
LAN) function
Supported items are as follows:
- Power control via WoL of ServerConductor/Deployment
Manager, ServerConductor/Blade Server Manager, or HCSM
- Booting NETM/DM with client control
With LPAR manager firmware version 58-80/78-80 or lower, use
shared NIC#0 thru #7.
Teaming When using Intel Advanced Networking Services (ANS) for
functions Windows, it is possible to use the adapter fault tolerance (AFT),
switch fault tolerance (SFT), and adaptive load balancing (ALB)
functions. When using Linux bonding, it is possible to use
active-backup, balance-tlb, and balance-alb. For VF NIC, only
active-backup is available. However, these functions should be
used with communication packet monitoring (Probe and ARP
monitoring) turned off and the delay before a team member is
activated (Activation Delay, updelay) set to 60 or more. At less
than 60, communication with external networks may become
impossible upon activation.
Receiving Always make sure that the MTU value for sender and recipient
operation when are the same. If they are not the same, the recipient may not be
MTU (Maximum able to receive packets.
Transfer Unit)
values are not the
same
Unicast function Unicast packet communication between NICs in the same virtual
LAN segment does not use external networks. Therefore,
monitoring from external networks, such as packet capture, is not
available. To monitor all communication over networks, you need
to monitor internal and external virtual LAN segments
respectively.
PHY loopback NIC internal loopback function is not supported. Therefore, a
function self-diagnostic test of the loopback function will fail.
Jumbo frame Maximum value for Windows/Linux when jumbo frame is used as
follows:
・ Windows (jumbo frame): 9014 byes
・ Linux (MTU): 9000 bytes
With LPAR manager firmware version 58-8X/78-8X or lower, do
not use jumbo frame.
Difference compared to physical NIC
1302