Cisco LACP Fallback

LACP на Cisco Catalyst 3750E

interface Port-channel3
 switchport trunk allowed vlan 720
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 720
 switchport mode trunk
 no port-channel standalone-disable
end

Для всех портов настройки одинаковые, вланы можно прописывать потом только на Po

interface GigabitEthernet1/0/2
 switchport trunk allowed vlan 720
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 720
 switchport mode trunk
 channel-group 3 mode active

lacp 3 internal
Flags:  S - Device is requesting Slow LACPDUs
        F - Device is requesting Fast LACPDUs
        A - Device is in Active mode       P - Device is in Passive mode

Channel group 3
                            LACP port     Admin     Oper    Port        Port
Port      Flags   State     Priority      Key       Key     Number      State
Gi1/0/1   SA      bndl      32768         0x3       0x3     0x102       0x3D
Gi1/0/2   SA      bndl      32768         0x3       0x3     0x103       0x3D
Gi1/0/3   SA      bndl      32768         0x3       0x3     0x104       0x3D
Gi1/0/4   SA      bndl      32768         0x3       0x3     0x105       0x3D
Gi1/0/5   SA      down      32768         0x3       0x0     0x106       0x45
Gi1/0/6   SA      down      32768         0x3       0x0     0x107       0x45

show  lacp 3 neighbor
Flags:  S - Device is requesting Slow LACPDUs
        F - Device is requesting Fast LACPDUs
        A - Device is in Active mode       P - Device is in Passive mode

Channel group 3 neighbors

Partner's information:

                  LACP port                        Admin  Oper   Port    Port
Port      Flags   Priority  Dev ID          Age    key    Key    Number  State
Gi1/0/1   SA      255       8231.d0ef.835c  28s    0x0    0x9    0x2     0x3D
Gi1/0/2   SA      255       8231.d0ef.835c  28s    0x0    0x9    0x1     0x3D
Gi1/0/3   SA      255       8231.d0ef.835c  25s    0x0    0x9    0x3     0x3D
Gi1/0/4   SA      255       8231.d0ef.835c  29s    0x0    0x9    0x4     0x3D
Gi1/0/5   SP      0         0000.0000.0000 143515s    0x0    0x0    0x0     0x0
Gi1/0/6   SP      0         0000.0000.0000 143515s    0x0    0x0    0x0     0x0
c3750e-lab#