I have a campus network composed of many access switches (X460) in buildings, on two sides of a street.
I would like to set up an agregation layer composed of four X670 switches (two on each side of the street), so that i can have redundant connections between each access switch and its two agregation switches). I also need to propagate vlans between these agregation switches.
I plan to use M-LAG :
- between each access switch and its two agregation switches (no problem, standard design) between the four agregation switches, in full-mesh flavour => here i have a doubt.
As stated in the drawing below, i gues that i would have to create four regular LAGs and also four M-LAGs (for each regular LAG on a X670, i have to declare the corresponding M-LAG on the two X670 on the other side) :
So I gues i would declare this configuration (just talking about X670 full-mesh connection, here i don't consider the LAG for the ISC link and the M-LAGs for the access switches):
X670 #1 : LAG 1 and M-LAG 3 and 4
X670 #2 : LAG 2 and M-LAG 3 and 4
X670 #3 : LAG 3 and M-LAG 1 and 2
X670 #4 : LAG 4 and M-LAG 1 and 2
Am i correct ?
If someone already tested this design or have suggestions about it, i'm very interested.