FACT Quick Start Guide

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Revision as of 23:11, 1 April 2008


Installing FACT

FACT runs on Linux with the following supported distributions:

  • RedHat Enterprise Linux, versions 4 and 5
  • SUSE Linux Enterprise Distribution, versions 9 and 10

FACT is distributed as an RPM file. To install the RPM, log in as a superuser, and enter the following command:

# rpm -i fact-v0.9.0.1-noarch.rpm

Creating the Main Configuration File

To create the main configuration follow, perform the following steps:

  1. Create the file .fact.conf in your home directory by using a text editor and entering the following line into the file: credential-file: ~/.fact-credentials
  2. Add lines to the file that specify the DNS names or IP addresses of each of your managed IB switches. Optionally, specify the names of each of your hosts. If you are using the High-Performance Subnet Manager (HSM), you must specify that host in the fact.conf file.
The lines for a Cisco SFS Server Switch running SFS-OS appear as the following:
managed-nodes: SFSOS switch name
The lines for a Cisco SFS 7012 or Cisco SFS 7024 Server Switch appear as the following:
managed nodes: OEM switch name
The lines for a host appear as the following:
managed-nodes: host name
You can use a pattern for the name if several devices have similar names. For example, if you have a small network with eight hosts, a Cisco SFS 3001 Server Switch, and a Cisco SFS 7012 Server Switch, the DNS names would be myhost1 through myhost8, my3001, and my7012, respectively. Therefore, you would create the following .fact.conf file:
credentials-file: ~/.fact-credentials
managed-nodes: host myhost[1-8]
managed-nodes: SFSOS switch my3001
managed-nodes: OEM switch my7012

Creating a Credentials File

Create a file named .fact-credentials in your home directory using a text editor. For each managed node (switch or host) that you listed in fact.conf, add a username and a password that FACT can use to log in to that managed node. Optionally, you can use wildcards if several devices use the same username and password.

host myhost[1-8]
user: myname
password: secret

FACT has default usernames and passwords. If your switches use the defaults, you do not need to enter them into the credentials file. For Cisco switches that use SFS OS, use "super" as the default username and as the password; for Cisco EOM switches, which are the SFS 7012 and SFS 7024, use "admin" as the default username and as the password, as shown in the following examples:

Cisco SFS OS switch
user: super
password: super
OEM switch
username: admin
password: admin

Collecting a Scan

To collect a scan, enter the following command:

fact scan fabric

FACT will log in to each switch and host that you listed in the .fact.conf file and collect information from it. FACT then searches that subnet to find the master Subnet Manager and collect more information from it, as shown in the following example:

$ fact scan fabric
Scanning myswitchA
Scanning myswitchB
Scanning myhost1
Scanning myhost2
Scanning myhost3
Scanning myhost4
Scanning myhost5
Scanning myhost6
Scanning myhost6
Scanning myhost7
Scanning myhost8
Scanning Master Subnet Manager at myswitchA

Viewing a Network

Use the following commands to see information about the current scan:

  • show subnet-managers
  • show versions
  • show chassis
  • show chips
  • show ports

The following examples show possible output for the previous commands:


fact> show chassis

[find output to place here]

fact> show subnet-managers

[find output to place here]

fact> show ports myswitchA

[find output to place here]

fact> show subnet-managers

[find output to place here]

fact> exit


Annotating a Log File

FACT can annotate a log file, or any other type of file. When FACT annotates a file, it finds GUIDs and inserts meaningful names inline in the text. FACT also includes information about the port in an annotation, such as the port location, the port neighbor, and the last-known neighbor, as shown in the following example:

$fact annotate pass-though mysubnetmanagerlog.text

[add output here] $

Viewing a History Scan

FACT retains all scans, which you can view by using the show history command, as shown in the following example:

$ fact
fact> show history

[add output here]

Learning More About FACT

To learn more about FACT, enter the fact --help command to view the command-line options, or enter the fact --help-commands command to view a short list of the commands that FACT understands.

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