We are using switch of Cisco belong to series SG500. The current, we saw some of the problems after use the switch. Please support for us.
Here is a desciption of the problem:
When the switch is started, it runs very normally. The devices are connected to the switch, the switch will learn the MAC address. The number of MAC address learned on the switch about 2000 MAC.
After switch operate about 2-3 weeks, we found that the number of MAC address learned on the switch reduced more than 80 percent, from 2000 MAC to around 300 MAC. The devices are being connected on the switch still operate normally. However, when we move the network cable of device is using from one port on a switch to another port, we were experiencing long delays in reconnecting to the network. The delays are about 10 minutes.
- First device configured with a static IP of 192.168.1.2 is plugged into port 2 of a cisco SG500 switch.
- Second device is configured with a static IP of 192.168.1.3 and is plugged into port 3 of the switch.
- On both device, we start a ping <IP of other PC> -t
- Then we moves the network cable from port 3 to port 4 of the switch.
- As soon as we moves the cable, pings on both device stop working, check the switch is not learned MAC of second device. After about 10 minutes, the pings start working again. But the switch is still not learned MAC of second device.
Here is detailed information of switch that we are using:
Indeed it looks like STP related problem but to identify the problem topology (especially STP) would be needed. I would suggest you to open the ticket with Small Business Team and after analysis if needed they would be able to report to the engineering team:
Introduction:Topology Diagram:Configuration Overview:Related
Information: Introduction: This document describes how to connect SG300
with Catalyst switch via STP. Spanning Tree Protocol (STP) is a Layer 2
protocol that runs on mainly on switches. The spec...
The Sx500 Series Stackable Switches offers different port features. You
can add security to a port, make the port more energy efficient, map a
VLAN to a port, make a port available or not to a specific network
portion, and so forth. The next set of articl...
Recently, HP Networking published a blog post attempting to counter the
favorable third party Miercom report on our Cisco® 200 and 300 Series
Smart and Managed switches: