[ipxe-devel] switch causing DHCP timeout

Christian Hesse list at eworm.de
Mon May 5 11:00:40 UTC 2014

Wissam Shoukair <wissams at mellanox.com> on Mon, 2014/05/05 10:51:
> Thanks Christian.
> 1. What is the consequences of setting the port's mode to "PortFast" and
> not completing the spanning tree initialization?
> 2. Can I always set this
> mode to be "PortFast"? Is there any cases where I can't use this mode?

Spanning tree is a network protocol that ensures a loop-free topology [0].
You should keep it enabled for ports that connect switches to each other.

Usually it is save to use "PortFast" for ports that clients are connected to
only. But again, read the documentation and do not blame me if anything
breaks. ;)

[0] http://en.wikipedia.org/wiki/Spanning_Tree_Protocol
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