HP XC System Software Installation Guide Version 3.0

Configuring the Myrinet Switch Monitoring Line Card
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 AddressNode-Level Switch NameNumber of Nodes
Not applicableNot applicable172.20.66.1
1
MR0N001 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 MR0N02129 to 192
172.20.66.5 and
172.20.66.6
MR0T00 to MR0T01172.20.66.1 to
172.20.66.4
MR0N00 to MR0N03193 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 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 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";
}
host n3 {
hardware ethernet 00:11:0a:ea:ea:41;
option host-name "n3";
fixed-address 172.20.0.3;
option xc-macaddress "00:11:0a:ea:ea:41";
# location "Level 2 Switch 172.20.65.3, Port 3";
108 Configuring Interconnect Switch Monitoring Cards