Cisco Switch-port Information Is Not Showing

Symptom

Switches are visible but but the switch ports are not visible in node management, node info or the switch management views.

Cause

If using SNMPv3 , some IOS versions may require you to configure the snmp-server group to view all contexts you wish to monitor.

Resolution

In this example, the SNMP group used to gain switch visibility is not authorized to view the VLANs assigned to the switch ports. To gain visibility of the switch ports, the group must be given privilege for the contexts. (VLANs)

View Contexts

switch>en
switch#>conf t
switch(Config)>show snmp context
vlan-1
vlan-2
vlan-3

Enable Access

switch>en
switch#>conf t
switch(Config)>snmp-server [groupname] v3 priv context vlan-1
switch(Config)>snmp-server [groupname] v3 priv context vlan-2
switch(Config)>snmp-server [groupname] v3 priv context vlan-3