Network Management

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We use an SNMP based monitoring tool for our network devices that consist of e.g. C9200 switches with version 17.3.4b. CISCO-MEMORY-POOL-MIB file has been loaded in the tool as well as CISCO-ENHANCED-MEMPOOL-MIB. However, memory utilization is not am...

kulmala by Beginner
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I am a little confused about the HSRP protocol. I would like some help with this. In the CCNA tutorial, the HSRP protocol is configured on the interface port itself (e.g. Gi0/0/0).However, in an enterprise environment, this is not what I have been ex...

khnrjm by Beginner
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  • 5 replies
  • 0 Helpful votes

Hello.I've been working on a school project and have encountered this error while configuring and testing mail server.I can only send emails to devices within the same LAN.Could anyone offer some help and guide me through this issue.

email_server.png mail_server_error.png mailserver_error.png