[ipxe-devel] switch causing DHCP timeout

Wissam Shoukair wissams at mellanox.com
Mon May 5 12:02:21 BST 2014


Will do.
Thanks again.

-----Original Message-----
From: Christian Hesse [mailto:list at eworm.de] 
Sent: יום ב 05 מאי 2014 14:01
To: Wissam Shoukair
Cc: ipxe-devel at lists.ipxe.org
Subject: Re: [ipxe-devel] switch causing DHCP timeout

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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