MAC addresses for host Ethernet adapters
Two integrated Ethernet controllers in the JS23 blade server and JS43 blade server
each provide a Host Ethernet Adapter (HEA) that, in turn, provides virtual
logical
host Ethernet adapters
(LHEAs) to client logical partitions (LPARs). The Virtual I/O
Server software uses LHEAs as if they were real physical adapters.
The logical HEAs in the JS23 and JS43 blade servers bypass the need for further
bridging from Virtual I/O Server, because the LHEAs connect directly to the
integrated Ethernet controllers in the blade server, and from there to the I/O
modules in the BladeCenter unit.
The JS23 and JS43 blade servers use two physical HEA ports and 14 logical HEA
ports to share the two integrated physical Ethernet adapters on the blade server.
The 14 logical HEA medium access control (MAC) addresses are in the same range
as the two integrated Ethernet controllers (eth0 and eth1) and the two associated
physical HEA ports on the blade server.
The MAC addresses of the two physical HEAs are displayed in the advanced
management module. The MAC address of the first integrated Ethernet controller
(eth0) is listed on a label on the blade server. The label also lists the last MAC
address. Table 6 shows the relative addressing scheme.
Table 6. MAC addressing scheme for physical and logical host Ethernet adapters
Node
Name in
management module
Relation to the MAC
that is listed on the
JS23 label
Example
Integrated Ethernet
controller eth0
Same as first MAC
address
00:1A:64:44:0e:c4
Integrated Ethernet
controller eth1
MAC + 1
00:1A:64:44:0e:c5
HEA port 0
MAC address 1
MAC + 2
00:1A:64:44:0e:c6
HEA port 1
MAC address 2
MAC + 3
00:1A:64:44:0e:c7
Logical HEA ports
MAC +4 to MAC +16
00:1A:64:44:0ec8 to
00:1A:64:44:0ed5
Logical HEA port
MAC +17
Same as last MAC
address on the label
00:1A:64:44:0ec8 to
00:1A:64:44:0ed5
For more information about planning, deploying, and managing the use of host
Ethernet adapters, see the Configuring section of the PowerVM Information
Roadmap.
Chapter 4. Configuring the blade server
53
Summary of Contents for BladeCenter JS23
Page 3: ...BladeCenter JS23 and BladeCenter JS43 Type 7778 Installation and User s Guide ...
Page 6: ...iv JS23 JS43 Type 7778 Installation and User s Guide ...
Page 24: ...12 JS23 JS43 Type 7778 Installation and User s Guide ...
Page 86: ...74 JS23 JS43 Type 7778 Installation and User s Guide ...
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