problems with ng_fec

[Michael W. Lucas]

Thank you, this was exactly right.  Just had to wait for maintenance
day to try it.

(copying the list for the archives)

On Thu, Sep 07, 2006 at 11:15:20AM +0200, Robert Blacquiere wrote:
> On Wed, Sep 06, 2006 at 10:56:48PM -0400, Michael W. Lucas wrote:
> > 
> > Hi,
> > 
> > (asked this first on -questions, but it seems that this exceeds their
> > wisdom...)
> > 
> > I'm using a recent -current on amd64, and trying to use ng_fec to
> > hopefully provide a wide-bandwidth connection with cable-level
> > redundancy, and instead I get get errors and sporadic connectivity.
> > 
> > I configured fec0 as such:
> > 
> > #!/bin/sh
> > 
> > ngctl mkpeer fec dummy fec
> > ngctl msg fec0: add_iface '"em3"'
> > ngctl msg fec0: add_iface '"em7"'
> > ngctl msg fec0: set_mode_inet
> > ifconfig fec0 up
> > ifconfig fec0 inet 10.184.1.19 netmask 255.255.0.0
> > 
> > The Cisco 6509 I was attached to had ports configured with:
> > 
> >  switchport trunk encapsulation dot1q
> >  switchport mode trunk
> 
> You need a port channel interface and make the switchports member of the
> port channel.
> 
> some thing like:
> 
> !
> interface Port-channel1
>  description 2 combined interfaces to freebsd fec0
>  switchport
> ! only needed for vlan tagging...
> ! switchport trunk encapsulation dot1q  
> ! switchport trunk allowed vlan x,y,z,...
> ! switchport mode trunk
> ! mtu 9216
>  no ip address
> 
> interface GigabitEthernet5/1
>  description UPLINK #1 
>  switchport
> ! needer only for vlan tagging
> ! switchport trunk encapsulation dot1q
> ! switchport trunk allowed vlan x,y,z,...
> ! switchport mode trunk
> ! mtu 9216
>  no ip address
>  no cdp enable
> channel-group 1 mode on
> 
> interface GigabitEthernet5/2
>  description UPLINK #2 
>  switchport
> ! needer only for vlan tagging
> ! switchport trunk encapsulation dot1q
> ! switchport trunk allowed vlan x,y,z,...
> ! switchport mode trunk
> ! mtu 9216
>  no ip address
>  no cdp enable
> channel-group 1 mode on
> 
> 
> > 
> > When I tried to ping various hosts, however, I got sporadic and
> > intermittent connectivity to other hosts on the network.
> 
> This is spanning tree behavour.... 
> 
> > 
> > Dmesg follows after log entries.
> > 
> > Any suggestions?
> > 
> > Thanks,
> > ==ml
> 
> Hopeful this will give you a head start in configuring the cisco.
> 
> Robert
> -- 
> Microsoft: Where do you want to go today?
> Linux: Where do you want to go tomorrow?
> FreeBSD: Are you guys coming or what?
> OpenBSD: Hey guys you left some holes out there!

-- 
Michael W. Lucas	mwlucas at FreeBSD.org, mwlucas at BlackHelicopters.org
		http://www.BlackHelicopters.org/~mwlucas/
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