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NEXUS 7000 FAILOVER and REDUNDANCY

Posted on 2014-10-14
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Seeking a good well written article on the Nexus 7000 failover and redundancy capabilities...nothing from Cisco please.
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Question by:sectel
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by:Don Johnston
ID: 40381261
You mean internal failover (dual sup) or failover between two Nexus 7K's?

What exactly are you looking for about failover?
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by:sectel
ID: 40381318
I can actually use articles on either subject but predominately articles focused on the failover and robustness features built of the individual box.
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Don Johnston earned 2000 total points
ID: 40381330
Well, I can tell you the supervisor failover is pretty much instantaneous. I can't recall ever seeing a dropped frame. As for non-Cisco articles, the only thing I could think of is google.

With respect to chassis failover, that would be protocol dependent since the protocol (OSPF, EIGRP, STP, etc.) is responsible for detecting a lost neighbor.  The exception to that would be vPC. And unlike supervisor failover, I have seen a packet drop in that situation.

http://lamejournal.com/2011/04/12/musing-on-ciscos-vpc-virtual-port-channel/
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