October 2002
Intermediate to advanced
1280 pages
24h 35m
English
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SM Path Database
It should be noted that there are typically a number of paths between any two CA and/or router ports in a subnet. During discovery (i.e., configuration), the SM determines the topology of the subnet, assigns LIDs to the subnet's ports, and programs the switch Forwarding Tables. The SM also builds a path database that defines all of the possible paths between every possible pair of CA and router ports.
When software later desires to set up communications between two QPs (for RC, UC, and UD) or EECs (for RD), it can interrogate the SM's database to determine the possible paths between the two ports that will be used. The possible paths are defined by the LID and/or GID specified for the two ports. The path database also contains ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.