US patent 5473599
tony.li at tony.li
Thu May 8 01:25:22 UTC 2014
On May 7, 2014, at 12:36 AM, Eygene Ryabinkin <rea+nanog at grid.kiae.ru> wrote:
> VRRP/HSRP comes from Cisco (well, VRRP is RFC'ed for some time, but
> its origin is Cisco too),
I’m sorry, but this is 100% incorrect.
HSRP comes from Cisco, but Cisco originally decided to not release the protocol to the IETF. [Stupid play on their part, but water under the bridge.] The IETF, realizing that this was useful technology, designed VRRP as a competitor to HSRP. Once that was well on its way to standardization, Cisco realized it missed the boat and finally publicly documented HSRP.
Please get your facts straight.
More information about the NANOG