352-001 · Question #669
The campus consists of four main buildings with a single router at each location. A single Ethernet connection exists between each building. Which two EIGRP metrics should be made equal in the…
The correct answer is A. Bandwidth C. Delay. EIGRP calculates its composite metric primarily from bandwidth and delay; making these two values equal across paths ensures equal-cost load sharing.
Question
The campus consists of four main buildings with a single router at each location. A single Ethernet connection exists between each building. Which two EIGRP metrics should be made equal in the network redesign to ensure proper load sharing? (Choose two.)
Options
- ABandwidth
- BLoad
- CDelay
- DReliability
How the community answered
(23 responses)- A87% (20)
- B4% (1)
- D9% (2)
Why each option
EIGRP calculates its composite metric primarily from bandwidth and delay; making these two values equal across paths ensures equal-cost load sharing.
Bandwidth is the dominant static component of EIGRP's composite metric formula (with default K1=1) and must be equal on all candidate paths for equal-cost load balancing.
Load is a dynamic metric that changes in real time and is not used by default (K2=0); relying on it for load sharing produces inconsistent and unreliable results.
Delay is the second static component used in EIGRP's metric calculation (with default K3=1) and must also be equal across paths to produce identical composite metrics and trigger load sharing.
Reliability is also a dynamic metric not used by default (K4=0, K5=0); it is excluded from the simplified EIGRP metric formula and does not affect equal-cost load sharing.
Concept tested: EIGRP composite metric components for equal-cost load sharing
Source: https://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/16406-eigrp-toc.html
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