IB routing engine for small fabric with just two switches? Is minhop sufficient?

Infrastructure & Networking Switches and Gateways InfiniBand/VPI Switch Systems
1

Hello,
we setup a small Infiniband fabric using two switches QM8700. We’ll connect the switches on ports 1-6 and use 7-40 to connect host ports. Can we just use the default minhop routig engine or do we need to use something more advanced like LASH to get this working? I want to make sure that we get routes passing between switches, i.e. that all hosts on switch A can reach hosts on switch B. ;-) We’ll run the subnet manager on the QM8700 switch itself, with just about 40 host ports this should be fine.

thank you,

Heiner

2

Hi Heiner,

It’s fine to run Minhop routing engine in the network you mentioned because there is no possibility of a credit loop.
You can find more information from man help:

man opensm

Thanks,
Yuying

3

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