nanog mailing list archives
Re: Thousands of hosts on a gigabit LAN, maybe not
From: Bruce Simpson <bms () fastmail net>
Date: Sun, 10 May 2015 05:01:42 +0100
On 09/05/2015 23:33, Karl Auer wrote:
IPv4 ARP, for example, hits every on-subnet neighbour; the IPv6 equivalent uses multicast to hit only those neighbours that happen to share the same 24 low-end L3 address bits as the desired target - a statistically much smaller subset of on-link neighbours, and in "normal" subnets typically only one host. Only chatter that really should go to all hosts does so - such as router advertisements.
Except when the IPv6 solicited-node multicast groups cause $VENDOR switch meltdown:
http://blog.bimajority.org/2014/09/05/the-network-nightmare-that-ate-my-week/
Current thread:
- RE: Thousands of hosts on a gigabit LAN, maybe not, (continued)
- RE: Thousands of hosts on a gigabit LAN, maybe not charles (May 08)
- Re: Thousands of hosts on a gigabit LAN, maybe not Baldur Norddahl (May 09)
- Re: Thousands of hosts on a gigabit LAN, maybe not charles (May 09)
- Re: Thousands of hosts on a gigabit LAN, maybe not John Levine (May 09)
- RE: Thousands of hosts on a gigabit LAN, maybe not charles (May 08)
- Re: Thousands of hosts on a gigabit LAN, maybe not Joe Hamelin (May 08)
- Re: Thousands of hosts on a gigabit LAN, maybe not Karl Auer (May 09)
- Re: Thousands of hosts on a gigabit LAN, maybe not Bruce Simpson (May 09)
- Re: Thousands of hosts on a gigabit LAN, maybe not Nick Hilliard (May 10)
- Re: Thousands of hosts on a gigabit LAN, maybe not Eduardo Schoedler (May 09)
- Re: Thousands of hosts on a gigabit LAN, maybe not John Levine (May 09)
- Re: Thousands of hosts on a gigabit LAN, maybe not Eduardo Schoedler (May 09)
- RE: Thousands of hosts on a gigabit LAN, maybe not c b (May 10)
- RE: Thousands of hosts on a gigabit LAN, maybe not John R. Levine (May 10)