Dual attachment VSP > 5320

[eyce]

Hello,

I want to put a double attachment between 2xVSP and 1x5320

The 5320 is linked to ExtremeCloud IQ. I have configured my 2 ports as LAG, so LACP is enabled

On the VSPs, I have smlt enabled on 2 ports.

But my link is not going up.
Do you have any advice?

Thanx

[WillyHe · Accepted solution]

Hello,

I suppose on the VSP's the vIST is in the state UP, used the same MLT id. on both, have LACP enabled and configured the same LACP key on the MLT and ports?

On the 5320 you need to configure both MLT and ports the same way.

LACP key id's must match between the SMLT cluster members,but, they don't need to match with the 5320.

Configuration examples :

On both VSP SMLT cluster switches :

mlt 10 enable name "SMLTxyz"
interface mlt 10
smlt
lacp enable key 10
exit

interface GigabitEthernet 1/10
encapsulation dot1q
exit

interface GigabitEthernet 1/10
name "SMLT-PORTxyz"
no shutdown
lacp key 10 aggregation enable
lacp enable
no spanning-tree mstp force-port-state enable
exit

On the 5320

mlt 1 enable name "MLTxyz"
interface mlt 1
lacp enable key 1
exit

interface GigabitEthernet 1/1-1/2
encapsulation dot1q
exit

interface GigabitEthernet 1/1-1/2
name "MLT-PORTxyz"
no shutdown
lacp key 1 aggregation enable
lacp enable
no spanning-tree mstp force-port-state enable
exit

Hope it helps
WillyHe