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
| Number
of Nodes | Node-Level
Switch Name | Node-Level IP
Address | Top-Level
Switch Name | Top-Level
Switch IP Address |
|---|
| 1 to 128 | MR0N00 | 172.20.66.1[1] | Not applicable | Not applicable |
| 129 to 192 | MR0N00 to MR0N02 | 172.20.66.1 to 172.20.66.3 | MR0T00 to MR0T01 | 172.20.66.5[2] and 172.20.66.6 |
| 193 to 256 | MR0N00 to MR0N03 | 172.20.66.1 to 172.20.66.4 | MR0T00 to MR0T01 | 172.20.66.5 and 172.20.66.6 |
Follow this procedure to configure network access
to the Myrinet switch monitoring line cards:
Begin this procedure as the
root user on the head node.
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.
Obtain the line card
MAC address from the label on the front or back panel of the Myrinet
switch.
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";
}
.
.
.
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";
}
host MR0N00 {
hardware ethernet your_MAC_address;
option host-name "MR0N00";
fixed-address 172.20.66.1;
}
}
} |
Save your changes and exit the text
editor.
Copy the contents of
the /etc/dhcpd.conf file to another file name
because the cluster_config utility rewrites the /etc/dhcpd.conf file you just modified:
# cp /etc/dhcpd.conf /etc/dhcpd.conf.ORIG |
Restart the DHCP service:
Use the text editor of your
choice to open the /etc/hosts file to include
an entry for each monitoring line card, using the data in Table D-3 as a reference:
Make the entries above the following line in the file
because any entries that follow this line will be deleted if you reconfigure
the system:
#XC-CLUSTER Do Not Edit Below this Line |
Save the changes to the file
and exit the text editor.
Repeat this entire procedure
for each monitoring line card, modifying the switch name and switch
address using the data in Table D-3 as a reference.
After you complete this procedure, you can start a web
browser and connect to the line card using the IP address or assigned
host name:
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