It is a UCS diagram but i dont image that being any different. Leverage switch programmability where smart NIC is not available or applicable. You can see they only have 1 connection per to the spines despite having 2 93xx switches in the rack for redundancy. I am sure this is for simplicity sake but it is confusing. The person may experience changes in sensation, mood or emotion leading up to the tonic-clonic seizure. Tonic-clonic seizures may start with a simple partial seizure or aura. Most diagrams you see will show 2 switchs in a top of rack but only one link going back to the spine. Tonic-clonic seizures involve both tonic (stiffening) and clonic (twitching or jerking) phases of muscle activity. It is simple when you have 1 TOR and 1 spine but that isnt redundant. Redundancy is done via ECMP and the fact that each host would have 2 (or more NICs) which would be setup to connect to each TOR switch. I would have 2 connections coming out of each TOR to each spine (2 spines). Therefore they need to each be plumbed back to each spine (in this case 2). So simply put.in the example they are not considered 1 leaf.they are considered 2 leafs. Do they talk to each other or do they get wired seperately back to each spine? What does it look like if you have 2 TOR switches for redundancy. Most diagrams i have seen show 1 TOR Leaf going up each spine. I know they say that you dont connect leafs to other leafs but in the case of redundancy in TOR switches, you would have to correct? Ultimately you would need to run 2 lines back to the spine for redundancy but do you employ communication between the 2 leafs in anyway through a port channel or stacking considering they are supplying the same service to the rack? I will ask the question a couple different ways.įor simplicity sake, lets say i have 2 TOR switches in a rack (for redundancy) and 2 spines.ĭoes each TOR switch run back to each spine or do you create a port channel or stack the 2 TOR switches to essentially make one leaf out of the 2 switches and then run 1 line back to each spines so that the spine sees it as one entity. I am a bit confused and need clarifying on the idea of spine/leaf and TOR switch connectivity.
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