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Before you modify OpenManage Network Manager:
Note: If you are reluctant to make configuration changes to the network switches on your own, create a support request with Dell Technologies Support for assistance.
The following SNMP configuration lines are extracted from functional BMC and ToR switches configured with the Azure Stack Hub baseline 1910 Partner Toolkit - sample trap categories and user and group names are included:
Note: Not all snmp-server enable traps lines are required. Only include the trap categories that are required for your monitoring environment.
snmp-server enable traps bgp
snmp-server enable traps snmp authentication coldstart linkdown linkup syslog-reachable syslog-unreachable
snmp-server enable traps vrrp
snmp-server enable traps lacp
snmp-server enable traps entity
snmp-server enable traps stack
snmp-server enable traps stp
snmp-server enable traps ecfm
snmp-server enable traps vlt
snmp-server enable traps xstp
snmp-server enable traps isis
snmp-server enable traps config
snmp-server enable traps envmon cam-utilization fan supply temperature
snmp-server enable traps ecmp
snmp-server enable traps mac
snmp-server group AzureStack_RO 3 auth notify rview read rview
snmp-server host <DellEMC-MGMTVM IP address> traps version 3 auth azure_ro udp-port 162
snmp-server user azure_ro AzureStack_RO 3 encrypted auth sha deec6a166eb07f5b972caf6842a267ece0ec5122
snmp-server view rview 1 included
snmp-server trap-source Vlan 5
The following lines are extracted from a functional ToR switch:
snmp-server enable traps bgp
snmp-server enable traps snmp authentication coldstart linkdown linkup syslog-reachable syslog-unreachable
snmp-server enable traps vrrp
snmp-server enable traps lacp
snmp-server enable traps entity
snmp-server enable traps stp
snmp-server enable traps ecfm
snmp-server enable traps vlt
snmp-server enable traps fips
snmp-server enable traps ets
snmp-server enable traps xstp
snmp-server enable traps isis
snmp-server enable traps config
snmp-server enable traps pfc
snmp-server enable traps envmon cam-utilization fan supply temperature
snmp-server enable traps ecmp
snmp-server enable traps mac
snmp-server group AzureStack_RO 3 auth notify rview read rview
snmp-server host <DellEMC-MGMTVM IP address> vrf management traps version 3 auth azure_ro udp-port 162
snmp-server user azure_ro AzureStack_RO 3 encrypted auth sha d608944700a2e79311339887688d54cc42a0207a
snmp-server view rview 1 included
snmp-server vrf management
The following lines are extracted from the SYSLOG configuration on the BMC switch:
logging <DellEMC-MGMTVM IP address>
logging source-interface Vlan 5
The following lines are extracted from the SYSLOG configuration on the ToR switches:
logging <DellEMC-MGMTVM IP address>
logging <DellEMC-MGMTVM IP address> vrf management
To configure OpenManage Network Manager to forward alerts northbound to SCOM:
Note: The events can include SNMP traps and SYSLOG messages from the switches.
Note: The options in Forwarded Message Type include: SNMPv2 Trap, HTTP REST Call, and Syslog. SNMPv3 traps are sent from the network switches to OpenManage Network Manager, but those traps are forwarded to SCOM as SNMPv2.
The settings make a significant difference to the amount of data that is in the trap payloads that display in programs such as Wireshark. Even though the traps that are received from the switches are SNMPv3, there is no problem forwarding these alerts to SCOM as SNMPv2 traps. If you want to forward SYSLOG messages to SCOM, the same configuration can be used, that is, forward the SYSLOG messages as SNMPv2 traps.