Liad Ofek Vice President Technical Services Expand Networks

Liad Ofek Vice President, Technical Services Expand Networks

Clearing the Way for Vo. IP in the Branch § § What’s the Hidden Cost? The promise and the reality of Vo. IP challenges in the Branch Office The Expand Compass Solution for Vo. IP deployments

Conflicting Commercial & User Requirements 87% of 80% Users are Remote! § § § Corporate HQ § § HQ Cost-reduction Simplicity Consolidation Business Continuity Regulatory Compliance REMOTE Globalization Productivity Remote User § § San Francisco Remote User annoyed Poor response time Remote User § § London Remote User frustrated High support costs § Tokyo Remote User gives up § Lack of productivity

The Promise of Voice/Video and Data Convergence o o o o Reduces cost Simplifies management Provides enhanced features Delivers greater mobility for the distributed business Provides same quality as PSTN calls Converged Voice, Data, Video – unified infrastructure for featurerich applications Convergence made easy and even more cost-effective with MPLS (Multi-protocol packet switching) Voice/Video Over IP are here to stay…BUT. . .

The Reality § The WAN limits the success of Convergence o o Low speed links for remote sites – 128 kbps, 512 kbps, T 1’s/E 1’s Low visibility for existing application bandwidth consumption § Performance challenges o o o Unacceptable voice quality Greedy and bursty competing applications MPLS access points are still congested…Qo. S is not enough § More data is thrown over the WAN o o o Server consolidation Web services Disaster recovery § Voice is not the only business critical application o Other data applications can’t be degraded to improve voice quality

More Applications Deployed To The Branch § 87% of employees work from the branch (Nemertes, 2004) 1010 0101 § New applications _____ _ _____ o o o Email Internet / Intranet Vo. IP § Same WAN o o Frame Relay Leased lines IP VPN MPLS _ _____ 1011 _____ __ 0100 _____ 1001 _____ 0101 __

Remote Branch Challenges Insufficient Capacity and Burst

Remote Branch Challenges Insufficient Capacity and Burst Latency and Chatty Applications

Remote Branch Challenges Insufficient Capacity and Burst Latency and Chatty Applications Intermittent Connectivity and Packet Loss

Remote Branch Challenges Insufficient Capacity and Burst Latency and Chatty Applications Intermittent Connectivity and Packet Loss Congestion and Greedy Applications

The Complete Technology Solution for Vo. IP

WAN Optimization Compression - reduce data over the WAN: free up the WAN capacity for Voice o o WAN Compression Gigabyte Caching

Best-of-breed WAN Compression § Patented algorithms § Byte-level caching § Packet header reduction § Adaptive packet compression § Fully transparent

Next-Generation WAN Compression § When data repeats, content is delivered from the edge § The “bandwidth effect”

WAN Throughput Improvements § Increase WAN capacity o o o Benefits all applications Transparent to WAN, applications, servers and users Alternative to WAN upgrades with a 3 – 9 month ROI 0% 200% 400% We have literally been able to trick our 56 Kbps lines into behaving like T 1 s – Julie Williams, VP & Compliance Officer First National Bank Iowa 600% 800% 1000% 1200% Microsoft Exchange Typical Lotus Notes Improvements SAP Net. BIOS Peak Intranet Improvements Web XML Disaster Recovery Citrix 0% 2 X 4 X 6 X 8 X Additional WAN capacity 10 X 12 X

WAN Optimization Qo. S - Guarantee voice quality o o o Shaping Traffic priority MPLS tagging Policy scheduling Bandwidth limitation

Qo. S - Gain Application Control § Prioritize and control apps o o o Guaranteed, min/max bandwidth for key applications Control/block rogue applications Seamless integration with other optimization services We were able to configure Vo. IP Qo. S with a simple configuration at 30% less than the Telco cost –Jacob Nielsen, Network Administrator Brenntag Nordic

Acceleration Optimize all applications to improve application response time Application Acceleration o o o Voice Optimization (Fragmentation) HTTP Acceleration FTP Acceleration DNS Acceleration HTTPS Acceleration Citrix Acceleration Protocol Acceleration o o TCP Acceleration SCPS Reliability

How Does Voice Optimization Work ? H H H H H § If applications sharing a low bandwidth link include FTP and Vo. IP, small Vo. IP packets may be delayed § Fragmentation will sub-divide the large packets and insert the small § Reassembly performed at remote Accelerator § Applied only to Qo. S default and low priority queues

Visibility & Management Visibility for Vo. IP performance Expand. View o o Central Management Inventory & License Management Global Visibility Ease of Deployment Application & Network Visibility o o o Automatic Application Discovery Net. Flow SLA Management

Visibility Into Application Performance § Visibility for World-class NOCs o o o Network, application & performance statistics Application performance and alerting Network trending and analysis …more impressive were the monitoring capabilities that offered in-depth visibility & enabled us to tune the performance of Microsoft –Ovvyng Harewood, IT Director. Office for the Ministry of Finance, Gov of Barbados

Security Encryption o o IP Sec Tunneling 3 DES AAA o o o Authentication Authorization Accounting RADIUS TACACS+

WAFS (Wide Area File Services) Will Vo. IP be affected by server consolidation ? § Terminate CIFS protocol locally (proxy) to eliminate “chattiness” over the WAN § Cache the objects to provide LAN-like performance § Consolidate other RBO services to provide LAN performance (print, DNS, DHCP, Etc. )

How Does WAFS Work?

Summary § Merging voice and data networks can cause significant problems which can offset the financial benefits of Vo. IP if not addressed properly § Technologies like compression, Qo. S, protocol and application acceleration, and monitoring are essential to establishing Vo. IP as an integral application for the branch