6800与5130直连
故障现象汇总：
6800，5130都是双链路在运行，10号晚上的时候端口被阻塞，尝试关闭重启端口无效，后面关闭其中一个端口后恢复正常。
6800的日志信息
%Apr 10 23:50:33:080 2026 M3-6800IRF STP/4/STP_DISPUTE: Instance 0's port Bridge-Aggregation211 received an inferior BPDU from a designated port which is in forwarding
or learning state.
5130的日志信息
%Apr 10 23:50:33:061 2026 M3-2FD-5130IRF STP/5/STP_BPDU_RECEIVE_EXPIRY: Instance 0's port Bridge-Aggregation1 received no BPDU within the rcvdInfoWhile interval.
Information of the port aged out.
当天关闭另一个接口，使业务先恢复，后续复现故障
%May 1 11:08:50:060 2026 M3-2FD-5130IRF STP/5/STP_BPDU_RECEIVE_EXPIRY: Instance 0's port Bridge-Aggregation1 received no BPDU within the rcvdInfoWhile interval. Information of the port aged out.
此时查看STP上送ACL是存在的：
Acl-Type RX IPv4 High, Stage IFP, SinglePort, Installed, Active
Prio Mjr/Sub 524/29, Group 2 [2], Slice/Idx 2/24, Entry 250, Double: 536/792
Rule Match --------
Ports: 0x0ffdfffc; 0x3ffffffd
Dest mac: 0180-C200-0000, FFFF-FFFF-FFFF
EtherType: 0x202, 0x1717
SysmRule Index : 36
Actions --------
CAR cir 0x100, cbs 0x800, pir 0x100, pbs 0x800, mode srTCM color blind
Account mode packets, green and non-green
Redirect and copy to cpu
Change CPU pkt COS 5
Permit
Red Deny
Red_Copy_to_cpu : No
Yel Deny
Yel_Copy_to_cpu : No
MatchedName:36, STP
从debug rxtx pkt 打印的信息能看到从11:08:32开始聚合组1无法收到STP报文
11:17:52 对2/0/6 执行undo stp enable之后 聚合组1收到了STP协议报文
*May 1 11:08:31:936 2026 M3-2FD-5130IRF STP/7/PKT:
Port716(Bridge-Aggregation1) received RSTP Packet(Length: 36)
ProtocolVersionID: 02
BPDUType : 02
Root ID : 0.3897-d6fd-beb8
Path Cost : 0
Bridge ID : 0.3897-d6fd-beb8
Port ID : 128.1636
Flags : Desi[ FL ]
*May 1 11:17:52:940 2026 M3-2FD-5130IRF STP/7/PKT:
Port716(Bridge-Aggregation1) received RSTP Packet(Length: 36)
ProtocolVersionID: 02
BPDUType : 02
Root ID : 0.3897-d6fd-beb8
Path Cost : 0
Bridge ID : 0.3897-d6fd-beb8
Port ID : 128.1636
Flags : Desi[ P ]
此时查看STP上送ACL也是正常的：
Acl-Type RX IPv4 High, Stage IFP, SinglePort, Installed, Active
Prio Mjr/Sub 524/29, Group 2 [2], Slice/Idx 2/24, Entry 250, Double: 536/792
Rule Match --------
Ports: 0x0f7dfffc; 0x3ffffffd
Dest mac: 0180-C200-0000, FFFF-FFFF-FFFF
EtherType: 0x202, 0x1717
SysmRule Index : 36
Actions --------
CAR cir 0x100, cbs 0x800, pir 0x100, pbs 0x800, mode srTCM color blind
Account mode packets, green and non-green
Redirect and copy to cpu
Change CPU pkt COS 5
Permit
Red Deny
Red_Copy_to_cpu : No
Yel Deny
Yel_Copy_to_cpu : No
MatchedName:36, STP
Accounting: Hi 1, LO 0
从抓包看，整个测试期间2/0/25都是能收到STP报文的：
之后再次对2/0/25进行UP、DOWN切换操作故障一直不复现，交换机不再打印STP异常log。
1、 建议更换slot2