High ping latency using two ethernet under FreeBSD 4.11 ...

["." at babolo.ru]

> On Tue, 15 Mar 2005, dima wrote:
> > This actually means you have 1 virtual interface fec0 representing 2 or 
> > more physical interfaces. The load balancing scheme can be assigned by a 
> > Catalyst, but low-end models like 2950 and 3550 can only balance traffic 
> > based on the least significant bit(s) of MAC-address.
> 
> 'k, definitely not what I'm looking for then ... unless I'm missing 
> something with how alias's work?
> 
> Right now, I have 2 C-classes, but theyy are assigned to the interface 'on 
> the fly' ... so, I could have something like:
> 
> 200.46.204.10
> 200.46.208.254
> 200.46.208.251
> 200.46.204.5
> 
> and then, after being up 15 days, might need to add yet another:
> 
> 200.46.208.244
> 
> now, my understanding (which may be wrong) is that when aliasing the IPs 
> onto the interface, they pretty much need to be 'bundled' ... if:
> 
> ifconfig fxp0 inet 200.46.204.2 netmask 255.255.255.0 (base server)
> ifconfig fxp0 alias 200.46.204.10 netmask 255.255.255.255
> ifconfig fxp0 alias 200.46.204.5 netmask 255.255.255.255
> ifconfig fxp0 alias 200.46.208.254 netmask 255.255.255.0
> ifconfig fxp0 alias 200.46.208.251 netmask 255.255.255.255
> ifconfig fxp0 alias 200.46.208.244 netmask 255.255.255.255
> 
> so, I could add another 200.46.208.* to the interface, but wouldn't be 
> able to add another 200.46.204.* to it, at least not without erasing all 
> IPs and rebuilding the list ...
> 
> If this isn't correct, please feel free to correct me ... what I'd love to 
> be able to do is:
> 
> ifconfig fxp0 inet 200.46.204.2 netmask 255.255.255.0 (base server)
> ifconfig fxp1 alias 200.46.208.2 netmask 255.255.255.0 (base server again)
> ifconfig fxp0 alias 200.46.204.10 netmask 255.255.255.255
> ifconfig fxp0 alias 200.46.204.5 netmask 255.255.255.255
> ifconfig fxp0 alias 200.46.208.254 netmask 255.255.255.255
> ifconfig fxp0 alias 200.46.208.251 netmask 255.255.255.255
> ifconfig fxp0 alias 200.46.208.244 netmask 255.255.255.255
> 
> but didn't think this was doable ...
Why not:
ifconfig fxp0 inet 200.46.204.2/24
ifconfig fxp0 inet 200.46.208.2/24 alias
ifconfig fxp0 inet 200.46.204.10/32 alias
ifconfig fxp0 inet 200.46.204.5/32 alias
ifconfig fxp0 inet 200.46.208.254/32 alias
ifconfig fxp0 inet 200.46.208.251/32 alias
ifconfig fxp0 inet 200.46.208.244/32 alias
so on
?
With the only fxp0 interface

You can freely add or delete all /32 addresses
while not 200.46.204.2 and 200.46.208.2

> So, right now, I'm using both fxp0 and fxp1, with fxp0 handling the 
> 200.46.204.* C-class, and fxp1 handling the 200.46.208.* C-class, so that 
> I can easily add/remove as required ...
> 
> ----
> Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
> Email: scrappy at hub.org           Yahoo!: yscrappy              ICQ: 7615664
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