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Effects of IPv4 and IPv6 address resolution on AMS-IX and the ARP Sponge
BibTeX
@MISC{Wessel_effectsof,
author = {Marco Wessel and Niels Sijm},
title = {Effects of IPv4 and IPv6 address resolution on AMS-IX and the ARP Sponge},
year = {}
}
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Abstract
Heavy ARP traffic can cause routers to run out of resources. Therefore, AMS-IX developed a daemon called ARP Sponge. When the number of ARP requests for an IP address exceeds a threshold, the ARP Sponge starts sending ARP replies which keeps ARP traffic down. The ARP Sponge currently works using IPv4 only. IPv6 uses Neighbor Discovery (ND) instead of ARP for address resolution. ND uses the solicited-node multicast address instead of broadcast, consuming less resources from routers. Therefore, IPv6 support should not necessary, though it still can be used to detect network problems and legacy router configurations. We tested this on an emulation of the AMS-IX platform, both the current version and its new version, yet to be introduced, based on MPLS/VPLS and with various customer platforms and found that IPv6 support need (and maybe should) not be
Keyphrases
arp sponge ipv6 address resolution legacy router configuration arp traffic arp reply solicited-node multicast address new version neighbor discovery arp request mpls vpls ipv6 support ams-ix platform ip address network problem various customer platform ipv6 support need heavy arp traffic current version address resolution
