Design Review Template - NETS

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About The Document Current Topology Mesa Lab UNAVCO Pearl Street ml-mr-c2-gs POTS ps-3018-c1-ts ps-1027a-c1- es ml-062-c1-gs Ml-371-c1- gs ml-50-c1-gs ml-mr-c2-ts netscm netscm2 uv-18-c1-es Foothills Lab fl2-2076-c1-e s ps-3018-c1-es ps-2008-c1-es fl1-2152-c1-gsfl3-3087-c1-gs fl3-3068-c1-gs ml-16c-c1-gs netscm3 fl4-1012-c1-gs fl1-2037a-c1-gs ml-mr-c2-es fl2-3095-c1-as fl2-3095-c1-gs fl2-3095-c1-ts ml-mr-c3-gs gin fl2-2104-c1-gs ml-47-c1-gs ml-mr-c1-ts ml-mr-c1-g s Center Green fl2-2069-c1-gs fl4-2060-c1-gs cg1-2010-c3-e s cg1-2036-c1-gs ml-243b-c1-gs ml-mr-c1-as voip1r-n2 ml-y2k-c1-gs ml-y2k-c1-as vbnsr Marshall marshallr-n406mar-26a-c1-es fb-12-c1-es fb-12-c2-es cg-voipr cg1-3036-c1-gs jef-126-c1-as cg1-3010-c1-es jef-126-c1-es cg2-mr-c1-gs cg2-mr-c1-ts cg1-2010-c2-es cg1-2010-c4-es cg1-2010-c1-escg1-3010-c2-es NCAR Network Diagram A TM links Gigabit Ethernet links Fleischman Building JeffCo jef-126-c1-ts L3 sw itch L2 Sw itch ATM Sw it ch Terminal Server Current Design Overview The current design spreads over three major campuses. The largest and most populated are Mesa and Foothills. Center Green utilizes an L2 switch as an aggregation point. The existing design facilitates for several VLANs to span multiple switches as well as multiple sites. Although this is not recommended, at NCAR this does not present any immediate problems or issues. The single homing of switches to the perspective core switch and the absence of a Spanning Tree loop at the core provide for a stable environment. At the current time, NCAR is satisfied with the current “availability” model and hope to improve it in the future. For example, the Mesa site, acts as a transport site for all traffic exchanged between CenterGreen NCAR Design Review and Recommendations v1.0 6
About The Document and Foothills. A total failure of the “ml-mr-c1-gs” switch will isolate all three major sites. Relying on internal redundancy (Dual-Supervisor and HA feature) helps reduce the chance of that type of failure. NCAR Design Review and Recommendations v1.0 7
Page 1 and 2: Cisco Systems Advanced Services Nat
Page 3 and 4: Contents Contents 3 Document Contro
Page 5: About The Document Document Purpose
Page 9 and 10: Short Term Design Enhancements Foot
Page 11 and 12: Hierarchical (MultiLayer) Network D
Page 23: Corporate Headquarters Cisco System

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