@techreport{ietf-grow-va-perf-00, number = {draft-ietf-grow-va-perf-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-grow-va-perf/00/}, author = {Hitesh Ballani and Paul Francis and Dan Jen and Xiaohu Xu and Lixia Zhang}, title = {{Performance of Virtual Aggregation}}, pagetotal = 16, year = 2009, month = jul, day = 5, abstract = {The document "FIB Suppression with Virtual Aggregation" {[}I-D.francis-intra-va{]} describes how router FIB size may be reduced. This approach entails a trade-off between path-length and load versus FIB size. It also has the potential to reduce convergence time. This document describes the results of several studies that examine these characteristics. The results of a study for a Tier-1 ISP with a relatively sophisticated deployment of VA, shows that FIB size could be reduced ten times or more with a worst-case latency penalty of 4ms and a worst-case load increase of \textless{}1.5\%. Another study, examining a much simpler style of VA deployment, also for a Tier-1 ISP, shows that FIB size can be reduced by four times (in routers serving as APRs), and more than 10 times in other routers. Here, worst-case latency increase was 16 ms, though this is almost certainly an over-estimate, both because traceroute was used to make the measurement, and because popular prefixes were not considered.}, }