Quadrics QsNetII Interconnect

• The letter N or T indicates the type of interconnect: N for node-level; T for
top-level.
• The integer ICNumber is the interconnect’s identification number based on
its position in the hierarchy. The numbering of both node-level and top-level
interconnects starts at 0 (zero).
Table 2-1 shows the range of interconnect names depending on the number of
nodes in the cluster.
Table 2-1: Interconnect Name Ranges
Number of Nodes Node Level Interconnects Top Level Interconnects
8
QR0N00 N/A
64
QR0N00 N/A
128
QR0N00 N/A
256
QR0N00 - QR0N0 QR0T00 - QR0T01
512
QR0N00 - QR0N0 QR0T00 - QR0T04
1024
QR0N00 - QR0N15 QR0T00 - QR0T07
These names are added to the /etc/hosts file and the /etc/bootptab or
/etc/dhcpd.conf file during the installation process.
_________________________ Note _________________________
For clusters that use RMS, in addition to the switch naming convention,
the modules have a physical location attribute within the RMS software,
as defined by the location field in the switch_modules table. This field
has the syntax: RrowNumberCcolNumberVvertIndex.
See the Cabling Tables for an explanation of how the interconnect names form part
of the interconnect port identifiers. These unique port identifiers are used in the
nodes-to-interconnect cabling procedures.
2.4.2 Interconnect IP Addressing
shows the default IP addressing for clusters in federated networks. The address is
assigned to the QM503 controller card in the interconnect. The dot-quad addresses
in this table represents the default IP address mapping, You can use other ranges of
IP ranges if required, or if other ranges are specified by the operating environment.
Switch
IP Address Range
Node Level 0–31, rail r 10.128.(128+r).(N+1)
Top Level 0–15, rail r 10.128.(128+r).(T+128)
Configuring the IP addresses is a post-installation configuration task and is
described in the configuration section.
Quadrics Interconnect Overview 2-5