Suzanna KommenAshley Laubscher

Jacqueline MeyersSteve Morozov

Current systems

• A Mixture of CAT3 and CAT5 is currently being used.

• 10Base-T and 100Baste-T Backbone and bandwidth limits are being used.

• T1 Lines being utilized at all four locations. Cisco 5950 Switches and Nortel Baystack routers in place.

Advantages and Disadvantages of SystemsAdvantages

Use of WANUses Ethernet Switch along with hub and

router

DisadvantagesOut datedServer based

Recommendations and Benefits

1000Base-t

Ethernet with switchboards and router.

ProtocolsTCP/IP and LAN transport and routing protocol

which keeps the network together.Simple Network Management Protocol (SNMP)

which is a networking management protocol for managing the infrastructure of the network

File Transfer Protocol (FTP) for transferring data information across the network.

Multi Protocol Label Switching (MPLS)switching of the flow of network traffic. Also supports the use of quality of service giving priority to routing that is used for video and voice

Rationale for the adoption of existing protocols1000Base T Ethernet

Channel Access Method

Advantages and disadvantages of protocolsAdvantages

Currently using Fiber optic cablesSecurity is up to date with passwords

DisadvantagesOut of date in near futureCost of repair

Present recommendations and benefits

Maintaining Fiber-Optic

Continuous password updates.

Protocols

Topologies in useStar topologies are being used in all four of

Riodan’s locations. There is more of a mesh topology going on in

Riodan’s wide are network (WAN). Locations are running 10 and 100BaseT

through these topologies.

Advantages and disadvantages of the Star topology.Advantages

Uses a Central ServerConnects using point-to-point

DisadvantagesCollisions of data Slowed down travel time

Consider combining topologiesCurrent use of Star Topology

Combine with use of Mesh Topology

Recommendations and benefits

Star and Mesh Topologies fused together will allow for an easier data flow and a more secure network that will still function even if one location ends up breaking down.

Switches: Current setup and beneficial recommendations. San Jose: 100BaseT and Cisco switches and

router/switch connecting to the sattelite. There is a 24 port hub that could be updated that connects the servers.

Hangzhou: 100BaseT switch, and two 24 port switches.

Pontiac and Albany: Notel Baystack switches, 48 port patch panels. An upgrade to 100BaseT switch would be beneficial.

Advantages and DisadvantagesAdvantages

Star Topology Easy to expand network Easy to detect faults Easy to remove parts

Mesh Topology Messages can take several paths

DisadvantagesTime delays

During use During set up

Amount of used bandwidth

Recommendations and benefits

Everything needs to be updated to 1000base-t, in order to allow for every location to be on the same page.

Mesh topology will secure the data flow and will not stop if one location does.

Current security efforts

There are no physical firewalls set in place at any of the locations.

It is unknown if there is any software firewalls in place either at any of the locations.

Security needsFirewall

Encryption

Advantages and disadvantages of various security approachesAdvantages

Firewalls Physical software

DisadvantagesCost of implementationTime and Down time of systemsCompatibility of all systems

Recommendations and benefits

Firewall will be physical as well as software. We will utilize both to ensurethe ensure that viruses and worms will not break through as well as unauthorized users.

Encryption will ensure the confidential data stay that way and is not seen by other users.

References