| High
availability Networks |
Omnirange
ASCE
Networks' award winning OMNIRANGE WAN/ Internet Load Balancing and
Traffic Management products ensures fastest content delivery for
Multi-Homed networks. It simplifies multi-link implementation and
provides intelligent traffic load balancing while avoid the shortcoming
of traditional solutions which just provide "cold-backup"
and could not use the multi-link resources simultaneously.
The Internet continues to grow, with seemingly no end
in sight. As more data traverses the global IP backbone, the need
for continuous " up time" and reliable data access becomes
more crucial. To ensure constant Internet access, networks ranging
from a corporate entity to e-commerce sites are deploying multiple
Internet connections, usually through multiple Internet Service
Providers (ISPs). This network architecture is commonly referred
to as MultiHoming. Although this design creates a more resilient
network and Internet access model, it also introduces certain complexities
that are not always easily resolved. To help manage traffic in such
a network design, ASCE Networks introduces the OMNIRANGE, an Internet
Traffic Management product specifically designed for simplifying
networks that utilize a multi-homed scheme.
Omnirange is especially suitable for the organizations, enterprises,
campuses, e-commerce Web sites or small/medium ISPs who have multiple
links to the internet.
Business Goal
Ensure 100 percent continuous Internet connectivity.
Network Topology
Omnirange is placed in front of multiple Internet
routers of any mixed bandwidth capacity (E1/T1, Frame Relay, ISDN,Ethernet,Cable,
DSL, etc). These connections can be from the same Internet service
provider, or various providers for additional failure protection.
Performance Requirements
Distribute Internet (WAN) connections
across a number of Internet links, greatly increasing the performance
and availability of an organizations connection to the Internet.
Balancing traffic among multiple ISP links provides two critical
benefits:
■ Increased performance from the
additional bandwidth;
■ Redundancy in case of link failure.
When a link failure is detected it's dynamically removed from
activity and re-added upon its recovery, transparent to the end
user.

Omnirange performs WAN balancing, guaranteeing Increased Internet
bandwidth and reliability.
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Benefits
of Load Balancing Across Internet/WAN Links
OMNIRANGE provides robust WAN load balancing options for
organizations that require guaranteed availability and performance
of their "multi-homed" Internet connection. The network
administrator can transparently add or remove Internet links to
increase Internet bandwidth capacity or perform router maintenance.
Traffic is dynamically balanced across the WAN links in the cluster
using advanced algorithms that ensure optimal link usage and traffic
balance.
Scaleable Internet Bandwidth
With the ability to add and mix additional Internet
connections, an organization can scale their bandwidth quickly
and seamlessly as their needs increase. Add a DSL, cable modem,
T1/E1, Ethernet, ISDN, or other connections into the pool of available
Internet links and you'll be efficiently utilizing and monitoring
these links in a matter of minutes.
Connectivity Failure Protection
With WAN load balancing enabled, a failure on a link
to an ISP does not result in complete loss of Internet connectivity.
OMNIRANGE continuously monitors the availability of the Internet
links in the load-balanced cluster. If one of the links is determined
to be down, it is dynamically removed from the cluster. Upon its
recovery, it is added back into the pool of available links. Additionally,
two OMNIRANGE appliances can be installed that monitor each other
for failure, further guaranteeing uninterrupted Internet connectivity.
Simple Administration
Adding new Internet links and balancing traffic among
these is achieved using a simply, drag-and-drop interface. Traffic
is efficiently directed to the optimal link without the nightmare
of configuring advanced proprietary router protocols.
Transparent Router Upgrades
Load balancing a group of Internet
routers provides the flexibility of upgrading or replacing a router
without bringing down the entire service. For example, a router
can be gracefully brought out of service, updated with the latest
software, and placed back into service, while the load has been
evenly distributed to the other routers in the cluster during
the process.
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Other
Functions and Features
Server Load Balancing:
Can be used to efficiently balance traffic for services such as
web sites, ftp, e-mail, LDAP and most other IP-based applications.
Omnirange can track session state when needed to guarantee that
the same server receives all traffic from a client, which is critical
for many e-commerce transactions. Many algorithms are available
to determine the traffic distribution among the servers including
round robin, weighted round robin, least connections and fastest
response time. Additionally, if all of the servers use Windows NT/2000
for their operating system, traffic can be balanced on any performance
monitor counter that is common among the servers, such as lowest
CPU or memory utilization.
Detailed Traffic Statistics:
With detailed traffic statistics available in all ASCE Networks's
products, you can quickly determine which server, user or application
is generating traffic on the network. Policies can then be quickly
created to limit or prioritize the traffic to match your business
goals and policies.
Secure Your Network.:
Omnirange's Source and Destination NAT improve network security,
maximize IP address usage, and redirect packets to different IP
addresses.
Handling High-Volume E-Commerce:
Packets from a user are handled as a flow and not just as individual
packets, which is critical for applications such as e-commerce traffic
where all traffic flowing from one user must be directed to the
same physical server for accurate processing
Security Device Load Balancing:
Can be used to efficiently balance traffic for security devices
such as firewalls, proxy server and VPN devices£¬ensure link security
and high performance for data transfer.
URL Inspection and Switching:
Manage web traffic based on the HTTP URL. For example, dynamic content
(*.cgi, *.asp, etc.) can be handled by one group of web servers
while static content is served by another group.
SMTP Alerts:
Standard email (SMTP) alerts are sent to the configured email addresses
when triggered by specific events such as a server failure, server
re-activation, Internet connection problem and more.
Cache Redirection:
HTTP requests can be filtered and redirected to a cache server for
increased performance and Internet bandwidth savings.
Remotely Set Microsoft TCP/IP
Address Settings:
The Omnirange can configure TCP/IP settings on a remotely administered
computer.
Remote Network Diagnostic
Utilities:
When remotely connected to an Omnirange, the administrator can issue
Ping and Traceroute commands and examine/manipulate information
in the remote computer's ARP and IP route tables.
Technical
Specifications
Standards
Supported
10Base-T/100Base-TX(IEEE 802.3, 802.3u)‚1000BASE-SX(IEEE 802.3z)‚IP‚RIP‚OSPF‚
Telnet(RFC 854)
Network Interface
10/100 full or half-duplex (auto-negotiation) with RJ-45 connections
for UTP ports
1000-Base-SX full or half-duplex with SC connector
Dimensions
Width: 432mm
Depth: 432mm
Height: 44mm(1U)
Weight: 5kg
Environmental
Operating
- Temperature 0°C to 40°C
- Humidity 5% to 95% (non-condensing)
Power
- Auto-ranging supply: 90-265 VAC@ 47-65 Hz
Certifications
Emissions: FCC, CFR 47 Part 15, Subpart A ANSI C63.4D11.4 1991,
VCCI Class 1, FCC OST 55, CISPR 16, CISPR 22, CSA C108.8-M1983 (R1989),
EN55022, CE, EN6100-3-2, EN60555-2
Safety: UL 1950, CUL, DIN/VDE 0805, CSA 22.2, No. 950-93, IEC 950,
EN 60950 TUV EMKO-TSE (74-SEC) 207/94 Nordic Deviations to EN 60950
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