User's Manual

Configuration Guide of XGS-5240-Series
74-8
Fig 1-7 LACP MAD detection
LACP MAD detection is achieved through the extended LACP protocol packets content. It defines
a new TLV (Type Length Value) in the extended field of LACP protocol packets and this TLV is use
d for the ActiveID of the interaction VSF. For VSF system, ActiveID value is unique, and it is express
ed by the member number of the master device in VSF. After enabling LACP MAD detection, the me
mber device interact the ActiveID information with other member devices through the LACP protocol p
ackets.
When VSF is running normally, the ActiveID values of the LACP protocol packets sent by all me
mber devices are the same, there is no Active conflict.
When the VSF is split into two vsf, the ActiveID values of the LACP protocol packets sent by dif
ferent VSF member devices are the different and multiple Active conflict will be detected.
74.1.6 BFD MAD
The topology of Bfd mad detection is simpler then lacp. But, one vlan is selected for bfd mad de
tection once, this vlan and the ports in it will be as the specific vlan and ports of bfd mad and they