>
              <b>To see how interface looks like by snmp, you can list all of 
              them with the '-v' switch.</b><br>

            </p>

            <p class="SectionBody">The script will return OK if ALL interfaces 

              selected are UP, or CRITICAL if at least one interface is down.<br>

              <br>

              You can make the script return a OK value when all interfaces are 

              down (and CRITICAL when at least one is up) with the <b>-i </b>option