OpenBSD的CARP和VRRP到底差别在哪？

剑心通明

说是比VRRP还好，怎么感觉都差不多啊

gvim

弱问一个 CARP和VRRP 是什么东东

剑心通明

A reader who is familiar with VRRP will find this is somewhat familiar, however there are some significant differences:
•The CARP protocol is address family independent. The OpenBSD implementation supports both IPv4 and IPv6, as a transport for the CARP packets as well as common addresses to be shared.
•CARP has an "arpbalance" feature that allows multiple hosts to share a single IP address simultaneously; in this configuration, there is a virtual MAC address for each host, but only one IP address.
•CARP uses a cryptographically strong SHA-1 HMAC to protect each advertisement.

剑心通明

CARP是Common Address Redundancy Protocol（通用地址冗余协议）的缩写，功能类似于VRRP（Virtual Router Redundancy Protocol，虚拟路由冗余协议），但比它更好。

对VRRP不熟，到底好在哪里？感觉好像都是差不多的啊

剑心通明

The Virtual Router Redundancy Protocol (VRRP) eliminates the single point of failure in a static network by assigning a virtual gateway between multiple physical routers. This allows two or more routers to cooperate as a dynamic gateway; one will perform as the "master", while the other system waits as a "backup". If the master becomes unavailable, the backup will begin advertising itself as the master, allowing traffic to continue uninterrupted over the new physical path. Unfortunately, although VRRP is an IETF-standard protocol, it is also encumbered by a patent held by its author, Cisco Systems, Inc. They claim to have no intention of asserting patent claims against anyone implementing VRRP, but publicly reserve the right to assert patent claims defensively. OpenBSD needed this functionality to support failover between hosts, but the looming patent issue made VRRP a poor choice.

congli

有条件就做个实验看看.

剑心通明

关键是没有啊

ioerr

openbsd 支持VRRP么？我只用过carp，哪位用过vrrp？

mirnshi

考古