IT Briefing Agenda 11/17/05. Foundation Issues & Governance Quick Updates AAIT CTS Organization ACM Demonstration VPN Announcement Wireless & Core update. Rich Mendola Karen Jenkins John Ellis John Ellis Jay Flanagan Paul Petersen. General Updates. Karen Jenkins. Quick Updates. - PowerPoint PPT Presentation
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Information Technology at Emory
Academic and Administrative ITClient Technology Services
Academic and Administrative ITClient Technology Services
NexGen Core: Current State
BorderHC
BorderA
clairmont1
ndbu1
north1 central1
matctr2 ndbu2
north2 central2
resnet1
ndb4
ndb5
emory7 emory8
crawford5
crawford4
ISP1 ISP2I2
Information Technology at Emory
Academic and Administrative ITClient Technology Services
NexGen Core - Design
• Virtual Routers– In the current model there are separate
physical routers for each core with in the same switching center
– Virtual Routers allow for each core to be contained within the same physical router
– Advantages• Less Routers (less power and space)• Greater scalability
Information Technology at Emory
Academic and Administrative ITClient Technology Services
NexGen Core - Design
• Mesh versus Cube– Mesh Advantages
• Each router is only one hop away from any other router
• Ultimate in redundancy
– Mesh Disadvantage• Too many fiber paths and fiber ports
Information Technology at Emory
Academic and Administrative ITClient Technology Services
NexGen Core - Design
Information Technology at Emory
Academic and Administrative ITClient Technology Services
NexGen Core - Design
• Cube Design– Each router is connected to a subset
of the other core routers in such a way that an outage with any fiber path or switch center would not cause an outage.• Conserves on fiber paths and ports
Information Technology at Emory
Academic and Administrative ITClient Technology Services
NexGen Core - Design
Information Technology at Emory
Academic and Administrative ITClient Technology Services
NexGen Core - Design
• 1 Gig vs. 10 Gig– Even with a cube design it would use an
excessive amount of ports and fiber to duplicate the cube for each core.
– With 10 Gig links we can setup the cube and virtually partition one gig links for each core.
• Each core will be at each switching center• We will be able to burst into the unused
bandwidth
Information Technology at Emory
Academic and Administrative ITClient Technology Services
NexGen Core - Design
Information Technology at Emory
Academic and Administrative ITClient Technology Services
NexGen Core – Implementation
• The Routers are being installed now• The new router cube should be built
before next semester• A transition plan for migrating links to
the new core is being developed.• Deadline – end of the fiscal year
Information Technology at Emory
Academic and Administrative ITClient Technology Services