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ADTRAN NetVanta 4305 User Manual

Netvanta 4305, Product features

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Product Features

Three-slot, dual-Ethernet

IP access router for eight

T1s of bandwidth

Dual auto-sensing

10/100Base-T interface for

LAN segmentation

Stateful inspection fire-

wall 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

VLAN Trunking (802.1Q)

for routing between

VLANs

Optional Virtual Private

Network (VPN) for secure

corporate connectivity

across the Internet

Recognizable Command

Line Interface (CLI) and

intuitive Web-based

Graphical User

Interface (GUI)

Network Address

Translation (NAT)

conceals private

IP addresses

Built-in DSU/CSU for

circuit protection

Feature-rich ADTRAN

®

Operating System (AOS)

Industry-leading five-year

North American warranty

The NetVanta

®

4305 is an access router

designed for cost-effective Internet access,
corporate Frame Relay, point-to-point connec-
tivity, ADSL, and VPN for large-bandwidth
applications supporting up to eight T1s.

Modular Hardware
Residing in a 1U high, 19” rackmountable
metal enclosure, the NetVanta 4305 is a single
platform that offers one wide module slot, two
Network Interface Module (NIM) slots and dual
10/100Base-T Ethernet LAN ports for true LAN
segmentation or DMZ applications. The single
wide module slot within the NetVanta 4305
will house the Octal T1/E1 Wide Module, while
the NIM slots will support a variety of the
NetVanta NIMs and Dial Backup Modules
(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 4305 is further complemented with
the 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, RIP, and PIM Sparse Mode for multi-
cast routing. 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 redun-
dant 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 4305 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.

The NetVanta 4305 also deploys VQM to

capture MOS, jitter, delay, and packet loss
statistics necessary to troubleshoot VoIP
calls over the WAN. This powerful, yet
graphically intuitive, diagnostic tool allows
for quick isolation of network issues to
ensure superior call quality.

Security
The AOS provides a powerful, high-perfor-
mance stateful inspection firewall. The firewall
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 4305 also adds the support

for IPSec-compliant VPN. The NetVanta 4305
supports up to 1,000 simultaneous VPN
tunnels, while also supporting encryption
algorithms like DES, 3DES, and AES. With
this upgrade, the NetVanta 4305 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.

NetVanta 4305

Multi-slot Access Router Supporting up to Eight T1s of Bandwidth