Campus LAN Design

ITS Networking Services acted as a subcontractor for a well-known San Jose software company to develop a new campus LAN design for one of their clients, a Santa Clara county hospital. ITS prepared a LAN design based on the Cisco "three-layer model" that provides high-performance, increased redundancy, and increased flexibility for the client.

The design employs redundant Cisco 6509 gigabit-ethernet switches at the "core" and "distribution" layers, and the new Cisco 4507 switches at the "access" layer. The design solves several scalability and reliability issues the client had been facing. The client is pleased with the design and has implemented a successful pilot implementation.

A client asked ITS Networking Services to prepare a network design and migration plan to replace a token-ring LAN with an ethernet LAN. Because of the expense of replacing token-ring network cards in every PC at once, the migration plan had to support the coexistance of both LAN technologies for over a year.

ITS was able to prepare a design that allowed the client to migrate to the new technology at the client's pace. The new ethernet LAN has a gigabit-ethernet backbone which provides a significant increase in bandwidth. The client also reports that the new LAN is easier to manage.

Frame-Relay WAN

ITS prepared a WAN design that allowed the client to use a single T1 local loop for Internet access, a frame-relay WAN connection, and up to 12 channels of voice. Traditional T1 multiplexing was used to divide the T1 local loop into three logical channels. Since the bandwidth requirements of this client were modest, the expense of multiple T1 local loops could be avoided.

Frame-Relay WAN With SNA Support

ITS designed and implemented a frame-relay WAN for a prominent Gilroy paper manufacturer. The design used Cisco routers (with Data Link Switching) and allowed the client to support both TCP/IP networking and legacy (SNA/SDLC) AS/400 device controllers at its remote manufacturing facilities. Traffic prioritization was configured on the Cisco routers to ensure that the SNA controllers did not time out.

Point-to-Point T1 WAN With SNA Support

A client asked ITS to prepare a T1 WAN design to support an SNA/SDLC connection as well as TCP/IP traffic. ITS prepared a design using Cisco routers and serial tunneling (STUN) to support both kinds of traffic over the same link. The network design did not require any upgrades to the IBM AS/400 (iSeries) SNA/SDLC equipment.

Internet Service Provider

In the first year of business, ITS designed and implemented a network for a new regional Internet Service Provider (ISP). The new network design called for multiple T1 lines to a "tier-one" Internet provider, ISDN primary rate lines to the telco central office for dial access, and multiple Linux servers to support domain name services, email, and secure web hosting.

Cisco AS5300 access servers were used for dial access and a Cisco PIX firewall was installed to protect the Linux servers. ITS was responsible for all aspects of the design and installation of this network.

To discuss your networking requirements, email us at waltermorris3@yahoo.com OR call (408) 842-8630.

Home