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October 15, 2004
HSRP and VRRP S-MLT - prevent single point of failure
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https://windtear.net/archives/2004/10/15/000486.html
单点故障(Single Point of Failure)是应该千方百计防止的
不管是核心层还是接入层都应该防止
一般接入层不支持都是通过软件做
HSRP Hot Standby Router Protocol
Cisco的专利 (http://www.networksorcery.com/enp/protocol/hsrp.htm)
RFC 2281 (http://www.networksorcery.com/enp/rfc/rfc2281.txt)
Active & Backup
VRRP Virtual Router Redundancy Protocol
(http://www.networksorcery.com/enp/protocol/vrrp.htm)
RFCs:
[RFC 2787] Definitions of Managed Objects for the Virtual Router Redundancy Protocol.
[RFC 3768] Virtual Router Redundancy Protocol (VRRP).
* Obsoletes: RFC 2338.
* Obsoleted by: RFC 3768.
S-MLT
北电(Nortel)的双A创举
既能热备 又不会开着费电不干活
挺好
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Posted by windtear at October 15, 2004 11:40 PM
