网络工程 - Nexus 6001 如何找到 STM_LEARNING_OVERLOAD 的来源 - 吾爱随笔录

前几次我发现 NX-OS 发送 STM_LEARNING_OVERLOAD

EET: %FWM-4-STM_LEARNING_OVERLOAD: system experiencing unusual number of new address notifications - deferring learn notification for 120 seconds

在此消息之后，cisco 会将流量泛洪到所有端口。

我找不到来源的主要问题，因为这只是我收到的消息。没有检测到循环，所以我无法进一步调查问题。

是否有一些其他命令有助于调试此问题。Mac 移动检测已激活：

# show running-config | include mac
mac address-table notification mac-move

有人可以告诉。当我发出详细命令时 - 是否存在可能导致问题的接口（在本例中为 1/38）？

# show spanning-tree active detail 

 MST0000 is executing the mstp compatible Spanning Tree protocol
 Bridge Identifier has priority 4096, sysid 0, address 002a.6a60.d101
 Configured hello time 2, fex hello time 12, max age 20, forward delay 15
 We are the root of the spanning tree
 Topology change flag not set, detected flag not set
 Number of topology changes 1039 last change occurred 0:14:24 ago
      from Ethernet1/38
 Times:  hold 1, topology change 35, notification 2
      hello 2, max age 20, forward delay 15 
 Timers: hello 0, topology change 0, notification 0

PPS 交换机软件版本：

Software
  BIOS:      version 2.0.0
  Power Sequencer Firmware: 
             Module 1: v4.0
             Module 1: v4.0
  Fabric Power Sequencer Firmware: Module 1: version v4.0
  Microcontroller Firmware:        version v1.2.0.5
  QSFP Microcontroller Firmware:   
             Module 1: v1.3.0.0
  CXP Microcontroller Firmware:   
             Module not detected
  kickstart: version 7.2(1)N1(1)
  system:    version 7.2(1)N1(1)
  BIOS compile time:       12/19/2014
  kickstart image file is: bootflash:///n6000-uk9-kickstart.7.2.1.N1.1-new.bin
  kickstart compile time:  10/14/2015 19:00:00 [10/15/2015 09:02:08]
  system image file is:    bootflash:///system_7_2_1_N1_1_ipsada.bin
  system compile time:     10/14/2015 19:00:00 [04/10/2016 11:51:48]


Hardware
  cisco Nexus 6001 Chassis ("Nexus 64 Supervisor")