NSE-12 and NSE-22 quick start guide

Introduction

Network Service Element come in two varieties: SPAN and TAP.  

The SPAN model has two independent monitor interfaces labeled LAN 3 and LAN 4.  In a typical configuration, both ports will be connected to two SPAN output ports: one port representing all packets from the network to the site and the other port representing all packets in the opposite direction. The NSE offers great WAN visibility, including a more precise traffic measurements method than possible with flow based analysis or snmp.  Other applications of NSE are possible, for example the monitoring of server bound traffic in a relatively small remote datacenter.

The fail-safe TAP model has been designed to be installed inline between the CPE and the local switch.  No specific configuration of those devices is required.

 

 

 

Solution

Accessing the appliance

 

 

The appliance is accessible through ssh using your favorite terminal emulator. The appliance ships with two user accounts, Administrator and comcert. User Administrartor has been created to allow the end-user to safely shut down and reboot the appliance. User comcert is reserved for COMCERT support engineers.  To connect to PMA from another terminal session, run the following command:

ssh -l Administrator <IPaddressPMA>

 

Shutdown or reboot the appliance

 

 

Stage 1 - shutdown the application

Stage 2 - shutdown the virtual machine

Stage 3  - shutdown or reboot the appliance

For your convienience, two scripts are created that will take care of these three stages in the correct order.  To execute a script, you must first connect to PMA and login as Administrator.

Once authenticated, run one of the following commands:

pma-reboot

pma-shutdown

It may take several minutes for the appliance to reboot or shutdown correctly.