FreeBSD 9.1 ix driver vlan problem
Daniel Corbe
corbe at corbe.net
Wed Sep 25 18:16:45 UTC 2013
Why would disabling STP on the switch *shorten* the amount of time it takes
for the port to come up? At least on Cisco switches, it takes ~45 seconds
for the switching topology to converge with STP disabled. Shorter periods
if you enable portfast or uplinkfast.
-----Original Message-----
From: Daniel Kalchev
Sent: Wednesday, September 25, 2013 4:31 AM
To: Rumen Telbizov
Cc: freebsd-stable at freebsd.org ; Jack Vogel
Subject: Re: FreeBSD 9.1 ix driver vlan problem
On 25.09.2013, at 02:16, Rumen Telbizov <telbizov at gmail.com> wrote:
>
>
> Example:
> ifconfig vlan200 create # this is OK
> ifconfig vlan200 inet 1.2.3.1/30 vlan 200 vlandev ix1 description DEBUG #
> this second line makes the rest of the vlans freeze for 6-7 seconds
>
> On the switch side (Juniper) the physical interface flaps. There's nothing
> in logs/dmesg.
>
Might be, you have spanning tree enabled on the switch port and when the
interface "flaps" it needs time to converge. Disable spanning tree on the
port and the reset will be very short.
Daniel
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