V7的两台S105做堆叠，BFD MAD检测端口流量跑满

V7两台105做堆叠，现场做了BFD MAD检测，

vlan 1111
 description "xintiao"

interface Vlan-interface1111
 mad bfd enable
 mad ip address 20.20.20.1 255.255.255.0 member 1
 mad ip address 20.20.20.2 255.255.255.0 member 2

interface GigabitEthernet1/5/0/48
 port link-mode bridge
 description to_bfd
 port access vlan 1111

interface GigabitEthernet2/5/0/48
 port link-mode bridge
 description to_bfd
 port access vlan 1111

现在看到两个BFD接口下outpu流量跑满，

GigabitEthernet1/5/0/48
Current state: UP
Line protocol state: UP
IP packet frame type: Ethernet II, hardware address: 60da-83f7-0c00
Description: to_bfd
Bandwidth: 1000000 kbps
Loopback is not set
Media type is twisted pair, port hardware type is 1000_BASE_T
1000Mbps-speed mode, full-duplex mode
Link speed type is autonegotiation, link duplex type is autonegotiation
Flow-control is not enabled
Maximum frame length: 9216
Allow jumbo frames to pass
Broadcast max-ratio: 100%
Multicast max-ratio: 100%
Unicast max-ratio: 100%
PVID: 1111
MDI type: Automdix
Port link-type: Access
 Tagged VLANs:   None
 Untagged VLANs: 1111
Port priority: 0
Last link flapping: 5 days 0 hours 6 minutes
Last clearing of counters: Never
 Peak input rate: 982 bytes/sec, at 2017-07-18 15:24:14
 Peak output rate: 95375255 bytes/sec, at 2017-07-19 12:15:55
 Last 300 second input: 13 packets/sec 979 bytes/sec 0%
 Last 300 second output: 1488334 packets/sec 95253501 bytes/sec 100%
 Input (total):  4473991 packets, 313180463 bytes
         0 unicasts, 21 broadcasts, 4473970 multicasts, 0 pauses
 Input (normal):  4473991 packets, - bytes
         0 unicasts, 21 broadcasts, 4473970 multicasts, 0 pauses
 Input:  0 input errors, 0 runts, 0 giants, 0 throttles
         0 CRC, 0 frame, - overruns, 0 aborts
         - ignored, - parity errors
 Output (total): 287938816307 packets, 18428116651015 bytes
         0 unicasts, 287933913656 broadcasts, 4902651 multicasts, 0 pauses
 Output (normal): 287938816307 packets, - bytes
         0 unicasts, 287933913656 broadcasts, 4902651 multicasts, 0 pauses
 Output: 0 output errors, - underruns, - buffer failures
         0 aborts, 0 deferred, 0 collisions, 0 late collisions
         0 lost carrier, - no carrier

GigabitEthernet2/5/0/48
Current state: UP
Line protocol state: UP
IP packet frame type: Ethernet II, hardware address: 1cab-34b9-5c00
Description: to_bfd
Bandwidth: 1000000 kbps
Loopback is not set
Media type is twisted pair, port hardware type is 1000_BASE_T
1000Mbps-speed mode, full-duplex mode
Link speed type is autonegotiation, link duplex type is autonegotiation
Flow-control is not enabled
Maximum frame length: 9216
Allow jumbo frames to pass
Broadcast max-ratio: 100%
Multicast max-ratio: 100%
Unicast max-ratio: 100%
PVID: 1111
MDI type: Automdix
Port link-type: Access
 Tagged VLANs:   None
 Untagged VLANs: 1111
Port priority: 0
Last link flapping: 5 days 0 hours 6 minutes
Last clearing of counters: Never
 Peak input rate: 95388827 bytes/sec, at 2017-07-19 02:20:21
 Peak output rate: 982 bytes/sec, at 2017-07-18 15:25:04
 Last 300 second input: 1487871 packets/sec 95223841 bytes/sec 99%
 Last 300 second output: 14 packets/sec 980 bytes/sec 0%
 Input (total):  287941459950 packets, 18428285844274 bytes
         0 unicasts, 287936557276 broadcasts, 4902674 multicasts, 0 pauses
 Input (normal):  287941459950 packets, - bytes
         0 unicasts, 287936557276 broadcasts, 4902674 multicasts, 0 pauses
 Input:  0 input errors, 0 runts, 0 giants, 0 throttles
         0 CRC, 0 frame, - overruns, 0 aborts
         - ignored, - parity errors
 Output (total): 4474017 packets, 313182283 bytes
         0 unicasts, 21 broadcasts, 4473996 multicasts, 0 pauses
 Output (normal): 4474017 packets, - bytes
         0 unicasts, 21 broadcasts, 4473996 multicasts, 0 pauses
 Output: 0 output errors, - underruns, - buffer failures
         0 aborts, 0 deferred, 0 collisions, 0 late collisions
         0 lost carrier, - no carrier

这个该怎么解决