HP XC System Software Installation Guide Version 4.0

D.2 Configuring Myrinet Switch Monitoring Line Cards
You can use the Myrinet switch monitoring line card to run diagnostic tools and to check for
events on each port of the line card.
Table D-3 provides the switch names and associated IP addresses you need during the
configuration procedure. The IP addresses for the switch monitoring line cards is based on the
swBase address in the base_addr.ini file. The default address base for the switch monitoring
line cards is 172.20.66, but if you modified the swBase value, the address base for the switch
monitoring line cards must change accordingly.
Table D-3 Myrinet Switch Controller Card Naming Conventions and IP Addresses
Top-Level Switch IP
Address
Top-Level Switch
NameNode-Level IP Address
Node-Level Switch
NameNumber of Nodes
Not applicableNot applicable
172.20.66.1
1
MR0N00
1 to 128
172.20.66.5
2
and
172.20.66.6
MR0T00 to MR0T01172.20.66.1 to
172.20.66.3
MR0N00 to MR0N02
129 to 192
172.20.66.5 and
172.20.66.6
MR0T00 to MR0T01172.20.66.1 to
172.20.66.4
MR0N00 to MR0N03
193 to 256
1 Node-level switch IP addresses range from 172.20.66.1 to 172.20.66.4.
2 Top-level switch IP addresses start at 172.20.66.5.
Follow this procedure to configure network access to the Myrinet switch monitoring line cards:
1. Begin this procedure as the root user on the head node.
2. Ensure that an Ethernet cable from the monitoring line card primary Ethernet port is
connected to an Ethernet port on the Root Administration Switch. This connection is described
in the HP XC Hardware Preparation Guide.
3. Obtain the line card MAC address from the label on the front or back panel of the Myrinet
switch.
4. Use the text editor of your choice to open the /etc/dhcpd.conf file, and add the following
lines inside the configuration block that begins with the text shared-network XC {. Enter
the MAC address obtained in step 3, and use the number zero (0), not the letter O, in the
host name MR0N00.
host MR0N00 {
hardware ethernet your_MAC_address;
option host-name "MR0N00";
fixed-address 172.20.66.1;
}
In the following example, the entry is added to the end of the shared-network XC {
block:
#Built by Blddhcpd in DiscoverTools.pm
ddns-update-style none;
deny unknown-clients;
allow bootp;
default-lease-time 480;
max-lease-time 480;
option xc-macaddress code 232 = string;
shared-network XC {
subnet 172.0.0.0 netmask 255.224.0.0 {
next-server 172.20.0.8;
filename = "/pxelinux.0";
host cp-n1 {
hardware ethernet 00:11:85:5c:1b:dc;
option host-name "cp-n1";
fixed-address 172.21.0.1;
# location "Level 2 Switch 172.20.65.4, Port 1";
}
.
200 Configuring Interconnect Switch Monitoring Cards