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Zorluk: OrtaNetwork Topology Architectures

Match each network topology architecture to its corresponding operational characteristic and traffic flow optimization profile.

  • Spine-Leaf (Clos) FabricOptimized for predictable, low-latency East-West server-to-server traffic using Equal-Cost Multi-Path (ECMP) routing across all inter-switch links.
  • Traditional 3-Tier CampusFeatures separate functional tiers where policy enforcement, routing boundaries, and media termination are handled at an intermediate layer for structured North-South flow.
  • Collapsed Core (2-Tier)Combines core transport and distribution routing functions into a single switch pair to reduce hardware footprint in smaller deployment sites.
  • WAN Hub-and-SpokeCentralizes security inspection and reduces WAN connection costs by forcing remote branch-to-branch communications through a central gateway site.

Cevap

Spine-Leaf (Clos) Fabric matches with East-West low-latency traffic using ECMP; Traditional 3-Tier Campus matches with separate functional tiers for structured North-South flow; Collapsed Core matches with combining core and distribution functions into a single switch pair; WAN Hub-and-Spoke matches with centralizing inspection and routing remote branch traffic through a central hub site.
Each topology architecture addresses specific scalability, redundancy, and traffic flow requirements: Spine-Leaf optimizes East-West data center flows using ECMP over a two-tier bipartite mesh; Traditional 3-Tier structures campus environments into distinct access, distribution, and core roles for policy control; Collapsed Core merges core and distribution layers for smaller networks to lower cost; WAN Hub-and-Spoke centralizes security and reduces link costs by routing branch-to-branch traffic through a central hub.

Adım Adım Çözüm

1
Analyze the structural traffic requirements of modern data center versus campus environments.
Identified that Spine-Leaf designs specifically target East-West (server-to-server) traffic via non-blocking ECMP routing across spine switches.
Data center workloads require low, deterministic latency across leaf switches regardless of physical placement.
2
Evaluate the functional division of campus topologies.
Identified that 3-Tier Campus separates core, distribution, and access, placing policy enforcement at the distribution layer, whereas Collapsed Core merges core and distribution into a single switch pair for smaller footprints.
Merging layers reduces cost in smaller networks, while dedicated tiers scale policy enforcement in larger enterprise networks.
3
Examine wide area network (WAN) deployment topologies.
Identified Hub-and-Spoke as the topology that centralizes policy enforcement and minimizes WAN link costs by routing all branch communications through a central hub.
Full mesh topologies require far more connections, making hub-and-spoke cost-effective when central security inspection is required.

Anahtar Kavram

Enterprise Network Topology Architectures and Traffic Flow Characteristics
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Network Topology Architectures

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