BayStack 470 (Port 18-19 LACP) <–> Cisco 3550 ( port 0/18 - 0/19)
VLANs 10 and 20 will be tagged across the LAG (Link Aggregation Group)
LACP key = 3
MLT ID = 2
LACP Timeout = Long
For BayStack 470,
470-48T(config)#vlan members remove 1 ALL 470-48T(config)#vlan ports 18,19 tagging tagall 470-48T(config)# vlan create 10 type port 470-48T(config)#vlan create 20 type port 470-48T(config)# vlan members add 10 18-20 470-48T(config)#vlan members add 20 18-20 470-48T(config)#Â interface fastEthernet all 470-48T(config-if)#no spanning-tree port 18,19 stp 1 470-48T(config-if)# lacp key port 18,19 3 470-48T(config-if)# lacp mode port 18,19 active 470-48T(config-if)# lacp aggregation port 18,19 enable 470-48T(config-if)# exit
For Cisco 3550,
Add VLANs 10 and 20
C3550#vlan data C3550(vlan)#vlan 10 state active C3550(vlan)#vlan 20 state active C3550(vlan)#exit ! spanning-tree mode pvst spanning-tree extend system-id no spanning-tree vlan 2,4,10,20 spanning-tree vlan 4,100-102 priority 8192 ! vlan dot1q tag native ! interface Port-channel3 switchport trunk encapsulation dot1q switchport trunk native vlan 10 switchport trunk allowed vlan 10,20 switchport mode trunk ! ! interface FastEthernet0/18 switchport trunk encapsulation dot1q switchport trunk native vlan 10 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 3 mode active channel-protocol lacp ! interface FastEthernet0/19 switchport trunk encapsulation dot1q switchport trunk native vlan 10 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 3 mode active channel-protocol lacp ! interface FastEthernet0/20 switchport access vlan 10 switchport mode access