Date: Tue, 20 Apr 2010 19:28:45 +0200 From: Luigi Rizzo <rizzo@iet.unipi.it> To: net@freebsd.org Subject: max_linkhdr defaults to 16, too short ? Message-ID: <20100420172845.GA71187@onelab2.iet.unipi.it>
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just noticed that sys/kern/uipc_domain.c still sets max_linkhdr=16 as a default. The value is often used to reserve head space in mbufs for the MAC header. As such, 16 is too short for systems that make use of vlans, and the effect might be that we would need additional mbuf entries or at least move stuff down as the vlan tag is added. Any objection to bumping the default to 20 ? cheers luigi
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