HUAWEI S7712 cooperate with Cisco 6509,please pay attention when bundle two leased lines to one eth-trunk:
Premise:
mode:LACP
auto-negotiation:off
interface type:Trunk
Attention:
need to disable stp in the eth-trunk of S7712,because the default configuration is enable stp,otherwise when one of lines in the eth-trunk turn down,it will lose lots of packets(about 30-40)