Hi!!
We have bought 4 (+2 spare) DGS-1510-52 switch.
Our plan is to create two stacks of two, for adding redundancy to our network. And I have two questions regarding link aggregation.
Linux Servers are configured using 802.3ad LACP between ports of two members of the stack. This works perfect!
For example:
Server 1 connected to Channel1 (formed by ports eth0/1 and eth1/1). All correct.
The problem comes while interconnecting two stacks with a LACP.
If I create LACP like I do with servers: doesn't work. Concretely, only works with one of both ports connected. With two ports connected, link is lost.
I create LACP ACTIVE-ACTIVE in both ports (for servers).
In the documentation (http://www.dlink.com/uk/en/support/faq/switches/layer-2-gigabit/dgs-series/uk_dgs_1510_28_configure_link_aggregation_lacp) they tell you to add ports to LACP in Mode: ON. Wait: Mode ON is supposed to be "old" load-balancing without 803.2ad, isn't?
![Huh ???](http://forums.dlink.com/Smileys/default/huh.gif)
So.. the quick question: How do you interconect two stacks with a LACP channel?
![Huh ???](http://forums.dlink.com/Smileys/default/huh.gif)
Another quick question: Imagine that I have some configuration set on ports n and m. (Vlan, etc). And then I create a LACP between these n and m ports. Then I configure VLANS for them as "Channel N", not ethN and M any more. BUT:
![Huh ???](http://forums.dlink.com/Smileys/default/huh.gif)
A LACP member port still have its own "old" settings individually?
![Huh ???](http://forums.dlink.com/Smileys/default/huh.gif)
A quick example:
Port 1 and 2 have access to VLAN 1 untagged, and 35, 36, 37 tagged.
Then I create a LACP (Port Channel 1) between Port 1 and 2. And I assign Port Channel 1 to access VLAN 2 tagged only.
What happens with "old" settings that Port 1 and 2 had? Are still working? Ports 1 and 2 are into VLAN 1 untagged? Or only makes sense for them settings from Port Channel?
Thank you!!!!
![Wink ;)](http://forums.dlink.com/Smileys/default/wink.gif)