GigaFlow will open on the Dashboards welcome screen.
See Login in the Reference Manual.
Give the Server a Name
After logging in for the first time, you will see:
You have not yet configured your server name, please do so below. This does not have to be the hostname.
Enter a name for your GigaFlow server. This will be used in the title bar and when making calls back to the Viavi home server.
See System > Global in the Reference Manual for more. You can change the server name at any time by navigating to System > Global.
Assign Disk Space
After logging in for the first time, you will also see:
Please select how much free space to keep on disk before forensic data is aged out.
This is the minimum free space to maintain on your disk before forensic data is overwritten. The default value is 20 GB.
Enter a value and click Save.
See also System > Global in the Reference Manual for more. You can change the storage settings at any time by navigating to System > Global > Storage.
Enable Call Home Functionality
Enable GigaFlow's call home functionality by configuring the proxy server, if one exists, at System > Global> Proxy. This information is required for several reasons: (i) to allow GigaFlow to call home and register itself; (ii) to let us know that your installation is healthy and working; (iii) to update blacklists. All calls home are in cleartext. See System > Licences for more. The required information is:
Server ID. This is the unique server ID; it is sent in calls home.
Proxy address. Leave blank to disable proxy use.
Proxy port, e.g. 80.
Click ? to test the proxy server.
Click Save .
See also System > Global in the Reference Manual for more.
You must enter a valid license key to use GigaFlow. Enter your license key in the text box at the end of the table at System > Licenses. Click ADD to submit.
See also System > Licenses in the Reference Manual.
To begin monitoring events on your network, subscribe to one or more blacklists at System > Watchlists.
See also System > Watchlists in the Reference Manual.
To poll your network infrastructure devices, you must provide GigaFlow with SNMP community strings and authentication details. You can do this at System > Global.
SNMP V2 Settings
Enter the community name in the text box and click Save.
SNMP V3 Settings
Enter the new SNMP V3 community name.
Enter a user name.
Auth Type, i.e. MD5 or SHA secure hash functions.
Enter an authentication type password.
Privacy Type, i.e. AES-128, AES -198, AES-256, DES or 3DES.
Enter a privacy password.
Enter a context. SNMP contexts provide VPN users with a secure way of accessing MIB data. See Cisco and the Glossary for more.
Submit by clicking Save.
See also System > Global in the Reference Manual.
Enable and Test First Packet Response
First Packet Response (FPR) is a useful diagnostic tool, allowing you to compare the difference between the first packet time-stamp of a request flow and the first packet time-stamp of the corresponding response flow from a server. By comparing the FPR of a transaction with historical data, you can troubleshoot unusual application performance.
To begin using First Packet Response, you must specify the server subnets that you would like to monitor. Navigate to Configuration > Server Subnets.
Select the Server Subnets tab and enter a server subnet of interest. To add a new server subnet:
Enter the subnet address.
Enter the subnet mask.
Click Add Server Subnet.
Click Cancel to clear the data entered.
By clicking on the Servers tab, you can view a list of the identified servers that will be monitored. You can see a realtime display of the First Packet Response by clicking to enable the ticker beside each server.
By clicking on the Devices tab, you can view a list of infrastructure devices - routers - associated with the server subnets of interest.
Reports for all active monitored servers can be viewed at Reports > First Packet Response.
See also Use First Packet Response to Understand Application Behaviour in the How-to section and Configuration > Server Subnets and Reports > First Packet Response in the Reference Manual for more.