XG-7100 Two copper WAN connections on the same VLAN
-
I am migrating one on my internet connections to a different provider that hands off the connection on the same VLAN that is already used on a WAN connection.
The existing connection is connected to one of the switch ports that is a tagged member (together with the two uplink ports) of the VLAN used by the ISP. The LAGG0.VLAN is then assigned to an interface and that works very well.
As far as I can tell there is no way to add the same VLAN to multiple switch ports without them actually be a member of the same VLAN which naturally would cause the two isp connection to be on the same L2 network.
Since the XG-7100 only has switch based copper ports i was considering getting a copper SFP and use an available ix interface for the connection. But then I read that the XG-7100 does not support copper SFP's
Does anyone have an idea to how I can configure two cobber wan interfaces that is tagged with the same VLAN but separately ?
-
Yes, as you read, you cannot use RJ-45/Copper adapter modules in the ix0/1 SFP+ ports.
The best way to do this would be to use the 4 port expansion card to give you mode parent interfaces. That would avoid any other issues.
There is one way to do this using the Eth ports though but it may be too limiting in other ways.
If you set the switch to port based VLAN mode you can configure it to be, effectively, two separate switches passing all VLANs to the internal port. So you might have ports 1-4 and 9 in one and 5-8 and 10 in the other. You can then remove the internal lagg and assign ix2 (port 10) and ix3 (port 9) directly. Then you can add the same VLAN on each and they will be separate interfaces.That VLAN will be passed to all ports in the group so you might want and external switch on the others to filter it.
You can only have two other untagged interfaces on the firewall directly after doing that.
Steve
-
Hi Stephen,
The port addon card seems like the best idea, only problem is that i have the DT version and i don't think addon cards are suported in those.
Are there no news on a fix for the cobber SFP module support? Sounds like a pretty significant limitation in the intel driver.
-
Ah, indeed you can't fit an expansion card to the desktop version.
The limitation is in the SoC which contains the 4 ix NICs. The data lines to read the media info from the the SFP directly are not included as I understand it. It's very unlikely this will be changed with a driver update alone.
Steve
