Transcript
Multi-location ERP WAN connectivity from Dax Client: Country's premier Fabric engineer, Design maker and a leading Polyester yarn manufacturer Customer's requirement: • • • • • • • • •
The customer wanted to implement ERP in their Head Office, 2 factories and 3 Depots. The distance between HO and factory in location 1 was around 20 kms and the distance between HO and factory in location 2 was around 14 kms. The distance between HO and the depot in location 1 was around 275 kms. The distance between the HO and other two depots was around 150 kms with 2 users each. Out of the 120 nodes in each factory, 50 users needed access to the network at HO. Backbone bandwidth requirement at HO shall be calculated as 4 kbps per remote user. Data transfer is consistent throughout the day. The connectivity needed to be always-on and the customer preferred an option of auto ISDN back-up connectivity, in case the primary link fails. In total, approximately 100 concurrent users across Factories and Depots put together will access the network. The connectivity requirement was point-to-multipoint from HO to all the locations.
Summary of Dax solution: Dax recommended a dedicated Point to Point (PPP) based lease line connectivity solution with auto ISDN back-up, which could be used for ERP applications of the customer. The solution had dedicated links from the central site to each location including factories and depots. Dax recommended Modular Enterprise Router for the central location which provides leased line connectivity to the factories and depots at the required speeds as well as auto ISDN back-up. The 2 factories were recommended to be connected to HO through 256 KBPS lease line with 64/128 Kbps auto ISDN back-up. The 3 depots were recommended to be connected to HO over 64 KBPS lease line with auto ISDN back-up. Dax recommended modular access routers providing lease line connectivity with auto ISDN backup for the factories and depots.
Details of Dax solution Dax recommended dedicated lease line based point to point (ppp) connectivity solution, which could be used for ERP applications, with auto ISDN back up. About the connectivity: The central router at the H.O had 2 # dedicated 256Kbps link to both the factories. As many as 50 users in each factory would be accessing the ERP application at the Central site. The WAN bandwidth requirement per user is estimated to be at 4 kbps. Hence, 256 kbps bandwidth meets the need to provide concurrent access for all 50 users in each factory. For the three depots, a 64 kbps bandwidth per location provides sufficient bandwidth, since the number of users was less than 2 at each of the depots. WAN Hardware at the H.O: For the central location, Dax recommended Dax DXMP-2691 Modular Enterprise Router, which has 4 Network Module Slots and 1 # fixed Fast Ethernet Port. Two slots of the router were recommended to be loaded with one no. of 4 port high speed Sync/Async module and one no. of 2 ports sync/async Serial WAN modules respectively, which provides lease line connectivity to 2 Factories and 3 depots. The third slot was recommended to be loaded with 1 no. 4 port ISDN BRI U module, which provides auto ISDN back-up link to all the locations. The remaining slot may be used for future expansion needs. Wan Hardware at factories and Depots: At all the 5 locations, namely 2 # factories and the three depots, Dax recommended Dax DXMP1700 Modular Access router, which has 4 WAN slots. One slot was recommended to be loaded with 1 port sync/async module, the other one with 1 no. 1 port ISDN BRI module. The remaining free slots may be used for future connectivity needs.
Highlights of the solution Cost efficient connectivity: The solution has been designed on dedicated leased lines. Considering the number of locations of factories and depots as well as the relative distances, a dedicated leased line network is much cost efficient than Internet based solutions. In the above leased line based solution, there is no additional cost towards Internet bandwidth. Since the maximum distance between Head office and remote locations is around 250 kms, direct leased line based solution is more feasible. Comprehensive Security: Since it is a point to point connectivity solution and there is no public IP network interference, the links are secure. High Performance: The point to point links are not shared or distributed. Hence, there is no bandwidth loss. ERP kind of application requires dedicated bandwidth all the time for real time data processing. Hence, dedicated leased line suits the customer. High availability: Each and every leased line is backed up by an auto ISDN link. Hence if the leased line fails, the ISDN line automatically dials and maintains the link uptime. User scalability: Dax Routers have in-built capability to support 2 Mbps high-speed links. Thus, even if the number of WAN users increases in future, the exiting routers accommodate high speed links without the need to change WAN modules. Adequate WAN bandwidth has been made available at the depots (upto 64 KBPS), which can be used as and when required. Scalability: All the routers (whether at Head office or remote locations) have free slots, which can be used for connecting more branches additionally in future just by loading appropriate modules. Thus, the solution is easily scalable. Comprehensive Management: With the Master Plan management option available in Dax routers, the entire network can be managed seamlessly. It also provides integration with most popular/widely used management tools like HP Open View, Cisco Works etc. Dax routers support SNMP. Hence, they can be managed from any industry standard SNMP software. Investment protection: The solution designed based on a dedicated leased line based network allows the customer to shift to Internet based connectivity, if needed with the same router hardware. This realizes investment protection for the customer. Compatibility: Dax routers support standard compatibility for flawless interoperability. Its modular design
supports various interfaces that guarantee easy upgradeability and scalability. Its feature-rich routing makes Dax routers versatile and an effective platform for any routing connectivity. Dax routers support a robust Command Line Interface that complies with the defacto industry standard, saving potential huge training costs.
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