I switch my cisco device from snmpv3 to snmpv2 and now I see eveything
Here's another suggestion took from Netdisco.
When you have trunk ports (or any interconnection between network devices), instead of showing a very big list of MAC address, use CDP to show the connected device and it's port at the order end.
Regarding the issues with SNMPv3. We did not run into any of these issues in testing, but we will look into this further to see if we can re-produce in house. Your description makes sense (if those branches aren't exposed, we won't be able to access them).
On the trunk port. This is something we are looking at improving in a future release. Thanks for the notes.
You will need to add the VLAN context to the view group on the device for each VLAN.
eg. Snmp-server group <groupName> v3 <auth|noauth> context vlan-<VLAN-ID>
Where the SNMP user belongs to <groupName>
So to add VLAN 16 & 17 do the following:
Snmp-server group MyGroup v3 auth context vlan-16
Snmp-server group MyGroup v3 auth context vlan-17
This is assuming that you have already set up the user, group, and view for general access (non VLAN) to the device for v3.
Hope this helps,
thanks it works !
But I have over 200 switches to monitor with different vlans everywhere. It will be a pain in the a** to do it on all switch.
I thinking of switching to snmpv2....