xtera communications ascenlink no. 080515. 2put date hereconfidential – xtera communications, inc....
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Xtera Communications
AscenLinkNo. 080515
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The Challenges
• Reliability– Single point failure of Internet is common– ISP downtime– Need to provide 7x24 uninterrupted services
• Performance– Lack of bandwidth, overloading a single connection
– Uneven distribution of traffic between multiple connections
– Bandwidth abuse
• Cost– Prevent costly line upgrade, ex. T3, T1 and E1– Provide efficient management on multiple links– Improve productivity
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Insufficient Bandwidth
Internet
ISP 1 ISP 2
0.512 Mbps
Internet
= 100 MbpsLAN
ISP
0.512 Mbps0.512 MbpsOverloading
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Risks Associated With Single Connection
T1 Leased Line
ADSL
ISP
ISP
INTERNET
ATUR
router
Router is down on server sideXLeased line loses connectionXRouter is down on ISP sideXInterior routing problems in ISPX
Instantaneous over throughputX
DSLAM is down on ISP sideX
Telephone line is brokenX
ATUR is downX
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AscenLink - The optimal WAN solution
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What is AscenLink
• WAN Link Load Balancer– Reliable network access
• WAN health detection• Fault tolerance (Inbound + Outbound)
– Maximizes network performance• Bandwidth aggregation • Intelligent routing algorithm
– Quality network services• Bandwidth management• Efficient and reliable services
– Management• Intuitive and friendly UI
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Features of AscenLink
• Auto Routing (Outbound load balance)• Multihoming (Inbound load balance)• Optimum Routing• High Availability• Tunnel Routing• Bandwidth Management• High Availability of Server• Firewall• Connection Limit• Statistics• LinkReport
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Auto Routing
• Outbound Load Balance– Connection – By traffic, connection, weight,
optimal route and etc.
• Outbound Fault Tolerance– WAN health detection– Auto fail over / fail back
Internet
ISP 1 ISP 2
IdleOverloading
✕ISP Down
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Multihoming
• Inbound Load Balance– SwiftDNS
• Built-in DNS• DNS Relay
– By traffic, weight and optimum routing
• Inbound Fault Tolerance– WAN health detection– Auto fail over / fail back
• Multihoming Backup• Does not need ISP support
and BGP
Internet
ISP 1
ISP 2
ISP 4
ISP 3
IdleOverloading
✕ISP Down
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Optimum Routing
• Optimal WAN link• RTT and WAN loading• Avoids peering issues between ISPs• Provides real WAN status• Auto Routing and Multihoming
Optimum Routing
Internet20M
10M
10G
500M
ISP 3
ISP 1
ISP 2
RTT=200ms
RTT=30ms
Optimum Routing
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High Availability
• Port-Level HA– Redundant LAN Port– Redundant DMZ Port
• Support spanning tree deployment with switches
• Avoid single point of failure
Internet
ISP1ISP2 ISP3
ISP4
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Tunnel Routing
• Based on each packet• Single connection over multiple links
– Bandwidth aggregation– Load balance– Fault tolerance
• Supports:– Dynamic IP address– NAT pass through– AES Encryption Internet
123456
123456
1
12
22
33
4
1
52
6
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Headquarter Branch
Tunnel Routing (Cont.)
• App.– VPN, streaming, data synchronization– Intranet – Central routing
InternetISP 1
ISP 2
ISP 3
ISP 4
VoIP Video Conf.
Data Center
VoIP Video Conf.
Data Center
WAN = LAN
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Issues on VPN
• Transmission is always slow:– Bottlenecked by low speed connection– Line upgrade is the only method to improve
performance
• Built on single connection:– No fault tolerance
– Re-establish after line down
InternetISP 1
ISP 2VPN initialize EstablishedEstablished
2M✕3M
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Tunnel Routing on VPN
• Load balancing and fault tolerance on VPN– Bandwidth aggregation – Improves performance of VPN– Provides uninterrupted access to VPN
InternetISP 1
ISP 2
ISP 3
ISP 4
✕
AscenLink Tunnel Group
123456 1 1
2 2 2 3
1 5
2 62 4
123456
3M
2M
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Tunnel Routing on Intranet
• Intranet between HQ and branches• Easy to implement• AES Encryption• Central routing
Headquarter
Taipei Branch Office
PPPoEADSL
PPPoEADSL
DHCPADSL
London Branch Office
PPPoEADSL
Fixed IP Lease Line
PPPoEADSL
PPPoEADSL
Internet
Tunnel GroupTunnel Group
Multi-site Intranet DeploymentMulti-site Intranet Deployment
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Advantages of Tunnel Routing
• Comparison with common WAN Load Balance devices– Capable of handling VPN traffic– Aggregate bandwidth for single connection
applications (VoIP, Video Conference)
• Unique Features of TR:– Support dynamic IP networks such as PPPoE or
DHCP– Split a connection into packets and redirect them
among different TR groups– Support Central Routing– Backup between AR/TR
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Bandwidth Management
• Policy based QoS• Based on L3 and L4 information• Guarantee / limit bandwidth• Prioritizes• Management by schedule
P2P & YouTube 1~3M
ERP & Oracle 10~100k
VoIP & Video Conf. 5~20kVoIP & Video Conf. 300~500k
ERP & Oracle 1~2M
P2P & YouTube 10~50k
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High Availability of Servers
• Server health detection• Fail over between servers• Allocate loading over servers• Aided with Multihoming to
achieve the realization of reliability for outbound internet service
Internet
ISP 1 ISP 2
✕Server Down
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Firewall
• Access control list• DMZ• Layer 7 protocol support
– IM (Skype / MSN / Yahoo Messenger / ICQ / QQ)– P2P (eDonkey / Bitorrent / Gnutella / WINNY)– VoIP (SIP / H323)
InternetLAN
DMZ
✕Access Deny
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Connection Limit
• Proactive detection of abnormal traffic• Limit the number of concurrent connections
from each IP address
INTERNET
detect ! VIRUS !!
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Real-time Statistics
• WAN Links• Traffic classes• Tunnel status• Tunnel traffic statistics• Virtual server status• Connection limit• Network interface information• WAN Link health detection• RIP status• DHCP lease information
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LinkReport
Powerful reporting system
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Benefits of AscenLink
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Benefits for Performance
• Auto Routing & Multihoming• Efficient usage between links • Optimal connection path• Bandwidth aggregation • Greater overall performance Internet
Trunk multiple links
Leased line
ISDN
XDSL
Cable Modem
……
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Benefits for Reliability
• WAN Health Detection System• HA deployment• Automatic Fail over / Fail back• 24 X 7 connectivity, “Always on” business
Internet
ISP 3
ISP 2
ISP 1✕
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Advantages of AscenLink• Tunnel routing
– Fast and uninterrupted for single connection applications
• Bandwidth management– Prevents bandwidth abuse– Guarantee performance of critical services
• High server availability– Non-stop servers– Prevents overloading of servers through traffic
distribution• Efficient and Continuous network services
VoIP Video ConferenceMail Servers
Web ServersData Center / ERP
/ Oracle Internet
ISP 1
ISP 2
ISP 3
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Benefits for Cost• Reduce cost of WAN links
– Bandwidth aggregation– Tunnel routing
• Avoid business/financial loss– Fault tolerance mechanisms
• High productivity– Best quality of network connectivity and services to
business operation and customers
• Intuitive UI, low maintenance and low management cost
• Highly efficient and effectiveBusinessBusiness
EfficiencyEfficiencyReliabilityReliability
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29
Customers
Autoridad Portuaria de Algeciras.
Autoridad Portuaria de Bilbao. Canal Isabel II Ayto de Majalahonda Grupo Bruesa Mitsubishi España. Scheneider Electric Renta4. Telyco (Grupo Telefónica). Arascon Vias y Obras. Grupo Vasco Catalana. Tropical Turística Canarias. Hoteles Bahia Del Duque. Caritas Grupo Persan. Mutualidad de Procuradores
de Tribunales de España. Consorcio de Compensación
de Seguros. Universidad de Francisco de
Vitoria.
Fundación Felipe II. Idealista. Colegio Oficial de Arquitectos
de Cantabria. Gaiker Grupo Anuntis. Educación Corporativa. Nuracon. Lidera Networks. Acorde. Divisa IT. InterDigital. Wimax Online ODM Compolaser. HP Sysntar Computer Services. BC Sistemas. Mirai España. Icons.
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Our Success Stories
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IBM Dakshwww.daksh.com
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IBM Daksh call center
• Background– IBM Daksh is a the leading business processing and
outsourcing service provider. Their major call center is located in Gurgaon, in the Indian state of Haryana.
• Challenges– multiple servers on the DMZ, that needed to be load-
balanced and protected against link failure– 6000 users divided into 10-15 groups, where bandwidth
management and QOS is required for outbound traffic, and based on different policies for each group.
– With 8 E1 links
– Link failures are unacceptable
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IBM Daksh call center (Cont.)
• Solution: Deploy AL800 HA in their network edge to aggregate 8 E1 from two different ISPs
• Results:– VPN connections are load
balanced and protected.– Policy based QoS can be
implemented.– HA deployment, reduces risk
of failure. – Servers operate efficiently
and traffic is fully optimized.
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Groupo Bruesawww.bruesa.com
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Groupo Bruesa• Background
– Groupo Bruesa is a leading construction company with branch offices located all over Spain.
• Challenges– Critical applications needed to be transmitted between HQ
and branch offices– VPN application is used between HQ and branch offices.– No back up line
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Challenges
Branch Office
Lease Line
Head Quarter
Lease Line
Branch Office
• Expensive leased line
• No Fail-over and load balance
• Insufficient bandwidth
• Hard to increase bandwidth
• VPN performance Issue
VPN Box VPN Box
VPN Box
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Solution–AscenLink VPN TunnelSolution:
Install AL680 in HQ and AL320 in each
branch-offices
Benefits:
• Adding Affordable ADSL
• VPN Fault Tolerance/Load balancing
• Bandwidth Expansion
• Better Performance
Branch OfficeBranch
Office
Lease Line
Head Quarter
Tunnel Tunnel
VPN Box
VPN BoxVPN Box
Internet
Lease Line
ADSL
ADSL ADSL
ADSL
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BMW/Sauber F1 Racing teamwww.bmw-sauber-f1.com
2008.05.15
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Background & Challenges• Background:
– BMW/Sauber F1 was looking for a solution to ensure WAN network connectivity as they transfer important racing data between the circuits and their Headquarter lab. In the past, they used satellite link to transfer all the data.
• The Challenges:– Satellite Link is unstable– Single connection risk– Dynamic IP
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Solution: AscenLink• By using AscenLink at their Switzerland HQ and at each
racing circuit, the goal of reliability, uninterrupted connection and greater transfer speed is achieved.
• Benefits– Huge increase in bandwidth– Less latency, quick response– Lowers connection cost– 100% guarantee of connection ability.
2008.05.15
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MSC Software Corporationwww.mscsoftware.com
2008.05.15
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MSC Software
• Background– MSC Software is a leading software company with over 50
branch offices worldwide, 24 branch offices in Europe.
• Challenges– Critical applications needed to be delivered between
German and UK branches– Bandwidth expansion was vital– VPN load balancing required
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MSC Software (Cont.)
• Solution: Implement AL430 at German and UK branch office to implement tunnel routing
• Results:– Bandwidth expanded on
affordable ADSL– VPN load balanced– Critical applications’ bandwidth
such as VC is guaranteed.– WAN connection is optimized.
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Level 421 GmbHwww.level421.com
2008.05.15
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LEVEL 421 GmbH
• Background– Level 421 is a satellite broadband service provider with
many satellite hubs in EMEA.
• Challenges
– The need for central traffic control traffic– Avoid redundant connection on each satellite hub– Bandwidth expansion is necessary
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Level 421 GmbH (Cont.)• Solution: Implement AL430
in HQ and AL320 at regional satellite hubs
• Results:– Central routing control is
fulfilled.– Tunnels were built
between HQ and each satellite hub. Thus expanding bandwidth.
– Redundant connections eliminated.
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The backhaul infrastructure of a German WISP
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Background
• Overview Förderverein Bürgernetz Dresden e.V. (Dresden) provides wireless
network services in the rural area where DSL lines are unable to be deployed. A total of 80 hotspots centered in Dreden and distributed in Coswig, Radebeul, and Freital was needed to serve
thousands of users simultaneously.
• Challenges– Achieve bandwidth expansion with multiple WAN
links– Route various users to different WAN links and
avoid unavailable Internet services – Traffic management
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Förderverein Bürgernetz Dresden e.V.
• AscenLink 430 aggregate 4 DSL lines with total 30 Mbits WAN connection
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Förderverein Bürgernetz Dresden e.V.
• Benefits
– Direct traffic to different links and prevent service disruptions from WAN link failure
– WAN traffic management assure optimal performance
– Easy deployment and central management of all WAN links
– Comprehensive statistics and reports– Scalability for future expansion
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Singapore National Day Parade
2008.05.15
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Background
• Background: Singapore's National Day Parade is a yearly extravaganza with more than 50,000 participants, and over 65,000 spectators.
• Challenges:– Due to security concerns, surveillance cameras needed to
be installed in order to build a multimedia network, and provide a secure backhaul to the event.
– The NDP WLAN covers over 200 clients includes IP cameras, and VoIP phones.
– Requires high quality up / downloads such as video transmission between organizer’s headquarters to the national stadium.
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Solution: AscenLink 680 HA
• Implemented AL680 HA• NDP network used 2*AscenLink AL680 to achieve High
Availability and 30 hotspots mesh nodes, connects 50 access points, 40 cameras, 200 mobile laptops, PDAs, and Wi-Fi phones
• Benefits– Non-Stop and reliable connection was built.– Video, VoIP application quality was guaranteed.
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Singapore NDP (Cont.)
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Singapore NPD WLAN
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NEXION
• Trunks multiple Internet Fiber to replace point-to-point Fiber– Achieving 90% of combined bandwidth
• Significant cost reduction• High-speed Video transmission from HQ to TV and
train stations
TV Station B
HD Decoder
TV Station A
HD Encoder
Internet TV Station E
TV Station C
TV Station D
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Shih Chien Universitywww.usc.edu.tw
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Shih Chien University
Gigabit Ethernet
INTERNET
HiNet TANet
ADSL x 10
Succeeded in Achieving:
• Multi-link Load Balance• Multi-link Multihoming• Multi-link QoS• Gigabit Ethernet
Interface• Public IP Pass-through
AL 3000
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Specification
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AscenLink™ 200
• 4 * 10/100 Base-TX
• WAN links: 4
• WAN Bandwidth: 20 Mbps
• Load Balance: Outbound only
• Fault Tolerance: Outbound only
• Limited TR function (Client only)
• No High Availability
• Desk-top
• Branch Offices, SOHO
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AscenLink™ 320
• 4 * 10/100 Base-TX
• WAN links: 4
• WAN Bandwidth: 20 Mbps
• Load Balance: Inbound / Outbound
• Fault Tolerance: Inbound / Outbound
• Full function TR (Optional)
• No High Availability
• 1U Rack Mount
• Branch Offices, SOHO
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AscenLink™ 430
• 5 * 10/100 Base-TX
• WAN links: 8
• WAN Bandwidth: 40 Mbps
• Load Balance: Inbound / Outbound
• Fault Tolerance: Inbound / Outbound
• Full function TR (Optional)
• High Availability
• 1U Rack Mount
• Small-Medium Business
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AscenLink™ 680
• 5 * 10/100 Base-TX
• WAN links: 15
• WAN Bandwidth: 60 Mbps
• Load Balance: Inbound / Outbound
• Fault Tolerance: Inbound / Outbound
• Full function TR (Optional)
• High Availability
• 1U Rack Mount
• Medium-Large Business
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AscenLink™ 800
• 8 * 10/100/1000 Base-TX
• WAN links: 30
• WAN Bandwidth: 100 Mbps
• Load Balance: Inbound / Outbound
• Fault Tolerance: Inbound / Outbound
• Full function TR (Optional)
• High Availability
• 1U Rack Mount
• Large Business
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AscenLink™ 3820
• 3 * 10/100 Base-TX
• 2 * 10/100/1000 Base-TX
• 2 * 1000 Base-SX
• WAN links: 50
• WAN Bandwidth: 400 Mbps
• Load Balance: Inbound / Outbound
• Fault Tolerance: Inbound / Outbound
• Full function TR (Optional)
• High Availability
• 2U Rack Mount
• Headquarters Large Enterprise
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Thank You!Thank You!
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