S5130S-28S-EI ：交换机收到很多ARP包 ，很多接入交换机都有这样的情况

日志里有很多端口updown的记录，

%Dec 7 22:54:11:134 2021 YC-ZZ-WS-1F_E46-S5130-11_18.22 DRVPLAT/4/SOFTCAR DROP: PktType= ARP , srcMAC=083a-3880-168e, Drop From Interface=XGE1/0/28 at Stage=63, StageCnt=14837 TotalCnt=11689849, Max Rate Interface=XGE1/0/28 !!

 %Dec 7 22:55:49:365 2021 YC-ZZ-WS-1F_E46-S5130-11_18.22 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/2 changed to down.

 %Dec 7 22:55:49:370 2021 YC-ZZ-WS-1F_E46-S5130-11_18.22 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/2 changed to down. 

%Dec 7 22:55:52:023 2021 YC-ZZ-WS-1F_E46-S5130-11_18.22 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/2 changed to up. 

%Dec 7 22:55:52:025 2021 YC-ZZ-WS-1F_E46-S5130-11_18.22 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/2 changed to up. %Dec 7 23:01:58:534 2021 YC-ZZ-WS-1F_E46-S5130-11_18.22 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/2 changed to down.

诊断信息发现

• - 端口收到stp tc报文统计
• slot 1 下列端口收到tc报文
  VLAN ID  Port                                Receive  Send
  30       Bridge-Aggregation22                7297     2
• - stp拓朴变化历史150次
• ===============display stp history===============  
   --------------- STP slot 1 history trace ---------------
   -------------------  Vlan 30   --------------------- 
   Port GigabitEthernet1/0/2            
     Role change         : DISA->DESI (Aged)            
     Time                : 2021/12/08 11:35:56 
     Port priority       : 0.4873-9731-4400 19 32768.083a-387f-ddb2 128.2 128.2 
     Designated priority : 0.4873-9731-4400 19 32768.083a-387f-ddb2 128.2 128.2 
• 
  
• •  slot 1 上送CPU报文丢失/过多(softcar)
  • ID  Type                RcvPps Rcv_All    DisPkt_All Pps  Dyn Swi Hash Am APps
    30  ARP                 0      22090124   12025506   500  S   On  SMAC 8

interface Ten-GigabitEthernet1/0/28 

 port link-type trunk 

 undo port trunk permit vlan 1

 port trunk permit vlan 2 to 4094

 port link-aggregation group 22