Gigamon(R) Announces Intelligent Network TAP for 'Always On' Data Access

First Full-duplex TAP to Provide PoE as an Optional Primary Power Source

SAN FRANCISCO, February 15, 2011 - RSA Conference, Booth #539 - Gigamon(R), the leading global provider of
data access solutions, today announced from the RSA Conference, the new
G-TAP(R)A Series. The G-TAP-ATX device is the first in a series of "Always
On" network TAPs leveraging an advanced architecture to remove the TAP as a
point of failure within the network.

G-TAP-ATX is an enhanced full-duplex copper TAP that provides multiple
primary forms of power to the TAP including AC, DC, Power over Ethernet (PoE)
and battery backup. G-TAP-ATX is the first and only full-duplex TAP to
provide PoE as a primary source of power. This allows for previously
unavailable configurations, such as continuous operation via a PoE connection
to a switch racked with a dedicated uninterruptable power supply. In
addition, the unique design of the advanced TAP uses a trickle charge to
continuously charge a backup battery. If the primary (and secondary) power
supplies are lost, the battery will continue operation of the TAP for up to
an additional five hours.

While traditional full-duplex copper TAPs are susceptible to link
downtime during power outages, triggering link renegotiation on end devices
connected to the TAP, the G-TAP-ATX eliminates link renegotiation delay and
dropped packets upon power interruptions or failures, to ensure network
uptime. "The G-TAP-ATX is an integral piece in the Data Access Network(R),
providing fault tolerant integration into the GigaVUE(R) product line for
10/100/1000 copper connections. The G-TAP-ATX is vendor agnostic to feed all
network and security monitoring and data capture appliances," said Patrick
Leong, CTO at Gigamon. "This 'Always On' approach within the Data Access
Network will enable more efficient operations and help reduce business risks
associated with those operations."

The G-TAP-ATX also provides added intelligence that monitors the state of
connected links and power status of the four forms of power. In the event
that primary power is lost, SNMP traps alert users that the TAP is now
utilizing the backup battery. The SNMP traps are also triggered if battery
levels ever drop to a low level to ensure rapid renewal of the primary power
source, helping to eliminate any network downtime.

For more information about the new G-TAP-ATX advanced TAP, please visit
the Gigamon website at www.gigamon.com, or call +1-408-263-2022.

About Gigamon

Gigamon(R) provides purpose-built appliances to enable visibility and
deliver critical packet-flow information across data networking
infrastructures. As creator and leader of the Intelligent Data Access
Networking(R) architecture, Gigamon's patented technology provides secure
access and enhanced visibility for traditional and cloud-based data networks.
The GigaVUE(R) line of intelligent data access switches eliminate SPAN port
contentions, extend legacy tool utilization within 10Gbps environments, and
enhance the effectiveness and productivity of network monitoring and security
tools - all while running at full line rate speeds. This provides seamless
and controlled delivery of the right data, at the right time, to the right
tools; benefiting customers with greater uptime, reduced vulnerability to
threats, and improved regulatory compliance. Founded in 2004, Gigamon has
sold thousands of units to customers in more than 40 countries around the
globe. For information about Gigamon, visit www.gigamon.com.

Albert Lin, +1-415-262-5969, alin at webershandwick.com, for Gigamon