NetVanta 3305
International
Product Features
■ Dual interchangeable 
Network Interface 
Modules (NIMs)
■ Dual auto-sensing 
10/100Base-T interfaces 
for LAN segmentation 
■ Stateful inspection 
firewall for network 
security
■ Quality of Service (QoS) 
for delay-sensitive traffic 
like Voice over IP (VoIP)
■ Voice Quality Monitoring 
(VQM) and Mean Opinion 
Score (MOS) prediction
■ Inherent URL filtering
■ Optional DSX-1 
interface supplies 
TDM voice transport
■ Comprehensive PPP dial 
backup scheme prevents 
network downtime
■ VLAN Trunking (802.1Q) 
for routing between 
VLANs
■Recognizable Command 
Line Interface (CLI) and 
intuitive Web-based 
Graphical User
 Interface (GUI)
■ Network Address 
Translation (NAT) for 
IP Address Concealing 
■ Optional VPN for secure 
corporate connectivity 
across the Internet
■ Industry-leading support, 
service and warranty
The NetVanta 3000 Series of modular 
access routers is designed for cost-effec-
tive Internet access, corporate Frame Relay, 
point-to-point connectivity, ADSL, and 
Virtual Private Networking (VPN). The 
NetVanta 3000 Series currently consists 
of the NetVanta 3200, 3205, and 3305 
with a variety of interchangeable NIMs 
and Dial Backup Modules (DIMs). 
Modular Hardware
The NetVanta 3305 is a dual-slot, dual-
Ethernet 1U high, rackmountable metal 
enclosure. A single slot within any of the 
NetVanta 3000 Series will house a variety 
of NIMs and DIMs. For dial backup, an 
analog modem DIM or an ISDN BRI DIM 
is available for preventing downtime by 
dialing around a failed circuit to any 
PPP-compliant device. 
Standards Protocols 
The versatile hardware platform of the 
NetVanta 3305 is further complemented 
with the ADTRAN Operating System (AOS). 
The AOS allows for the support of static 
and default routes, demand and policy-
based routing, and allows for fast, 
accurate network convergence using 
routing protocols such as BGP, OSPF, 
and RIP. In addition, the AOS terminates 
MPLS, Frame Relay, Multilink Frame 
Relay, PPP, Multilink PPP, PPPoE, PPPoA, 
RFC 1483, and HDLC Wide Area Network 
(WAN) protocols. Multihoming is also 
available to provide redundant or backup 
WAN links to multiple ISPs, guaranteeing 
a wide-area connection.
QoS
QoS is also supported for delay-sensitive 
traffic like VoIP or video. To prioritize 
mission-critical traffic and control network 
congestion, the NetVanta 3305 uses Low 
Latency Queuing, Weighted Fair Queuing 
(WFQ), Class-based WFQ, and DiffServ 
marking to establish priority of IP packets 
routed over the WAN.
VoIP Ready
In combination with the QoS features, 
a specialized Session Initiation Protocol 
(SIP) Application Layer Gateway (ALG) 
allows SIP traffic to traverse NAT-enabled 
firewalls. For an enterprise network, this 
interoperability allows IP PBXs, phones, 
and other SIP-based devices to set up, 
tear down, and pass voice and call control 
messages seamlessly through the integral 
NAT-enabled firewall.
Security
For added security, AOS provides a 
powerful, high-performance stateful 
inspection firewall that can identify and 
protect against common Denial of Service 
(DoS) attacks like TCP syn flooding, IP 
spoofing, ICMP redirect, ping-of-death, 
and IP reassembly problems. 
In addition, the AOS is capable of 
providing an inherent URL-filtering 
package without the use of an external 
server. URL filtering is another level of 
security that allows system administrators 
to restrict Internet access by permitting 
or denying specific URLs. This URL-
filtering feature also includes the ability 
to produce top website reports of the 
most frequently requested websites, 
allowing system administrators to 
modify the URL filter lists.
The NetVanta 3305 also supports 
up to 500 simultaneous VPN tunnels, 
while supporting encryption algorithms 
like DES, 3DES, and AES. By supporting 
IPSec, the NetVanta 3305 is fully 
compatible with other IPSec VPN-
equipped NetVanta products.
Administration 
The AOS offers both a CLI that mimics the 
widely deployed, industry de facto standard 
and an intuitive Web-based GUI with step-
by-step configuration wizards.
www.adtran.com/global
Multi-slot Access Router Supporting up to Three T1s of Bandwidth