Observations
No major surprises
- Strong correlation between update cost and performance
- But performance advantages can persist in some low cost regions
Need to adapt triggering policy to operating environment
- The larger the hold-down timer, the coarser the triggering policy
- Avoid being “stuck” with stale information
- Use of quantized values with coarse triggering policies
Network topology has a major influence on routing performance
- Number of alternate paths
- Sensitivity to trunk reservation parameters