Hitachi Compute Blade 2000 User Manual page 1365

(b) MAC address is changed in a guest OS.
When a MAC address is changed in a guest OS, make sure to set the
promiscuous mode to "Through" for the internal virtual switch of LPAR
manager connected to the guest OS. The following figure shows how to
transfer a packet when the MAC address is changed in the guest OS.
When promiscuous mode is not set to Through, port3 of the virtual LAN switch
1a transfer packets only for the former MAC address of LPAR3 NIC 1a and
cannot communicate with external nodes.
LPAR manager
LPAR1 LPAR2 LPAR3
Changed
MAC
1a 2a 1a 2a 1a
1 2 3 16
・・・・・
Virtual LAN Switch (1a)
17
External Network -1
When the promiscuous mode is set to "Through", LPAR3 can communicate
with external nodes. That is because port3 of the virtual LAN switch 1a can
transfer packets to the changed MAC address of LPAR3 NIC 1a.
LPAR manager
LPAR1 LPAR2 LPAR3
Changed
MAC
1a 2a 1a 2a 1a
1 2 3 16
・・・・・
Virtual LAN Switch (1a)
17
External Network -1
x
: Through setting
x : setting
Restricted
: Port for external connection (always
17
: Physical NIC port
x
: setting
Through
: setting
x Restricted
: Port for external connection (always
17
: Physical NIC port
1314
Through)
Through)