7213T_TP1 _ W1 _ S2 _ R1.doc

Personal Assignment 1 Session 2

Mr. Bob is an IT director at Trust Oil and Gas, a medium-sized petrochemical company based in Houston. It also has operations in the Gulf of Mexico and in outh !merica. Mr. Bob is in char"e of the net#or$ infrastructure, includin" routers and s#itches. His "roup includes personnel #ho can install and confi"ure %isco routers and s#itches. The Trust Oil and Gas %IO #ants to be"in mi"ratin" from the &oice net#or$ to an 'nified %ommunications ('%) solution to reduce circuit and mana"ement costs. *xistin" data +! circuits ha&e  percent utilization or less but spi$e up to / percent #hen sporadic 0T1 transfers occur. Mr. Bob hands you the dia"ram sho#n in 0i"ure 2. The exitin" data net#or$ includes 3 sites #ith #ith approx approxim imatel ately y 3 people people at each each site. site. The net#or net#or$ $ is Multip Multiprot rotocol ocol 4abel 4abel #itch #itchin" in" (M14) +!, #ith approximately 5 people at the head6uarters. The +! lin$s ran"e from 3/7-$bps circuits to T2 speeds. 8emote-site applications include statisti- cal files and "raphicalsite dia"rams that are transferred usin" 0T1 from remote sites to the head6uarters.

0i"ure 2. Trust Oil and Gas %urrent et#or$  Mr. Mr. Bob #ants #ants a '% soluti solution on that that mana"es mana"es the ser&er ser&erss at head6ua head6uarte rters rs but still still pro&id pro&ides es redundancy or failo&er at the remote site. He mentions that he is concerned that the 0T1 traffic mi"ht impact the 9oI1 9oI1 traffic. He #ants to choose a site to implement a test before implementin" '% at all sites. The follo#in" 6uestions:directi&es refer to this case study;

2. +hat are the business re6uirements for Trust Oil and Gas< 5. !re there any business-cost constraints< 3. +hat are the net#or$=s technical re6uirements< 7. +hat are the net#or$=s technical constraints< . !pproximately ho# many I1 phones should the net#or$ support< >. +hat type of '% architecture should you propose< ?. +hat 6uality of ser&ice (@o) features #ould you propose for the +!< /. +hat 1o* recommendations #ould you ma$e< A. +ould you propose a prototype or a pilot< 2. +hat solution do you su""est for &oice redundancy at the remote sites< 22. ia"ram the proposed solution.