Settings > Map > Link Appearance > Tooltip
I use:
Description: [oid("1.3.6.1.2.1.31.1.1.1.18.[Interface.Index]")]
Interface [Interface.Name]
Type: [Interface.Type]
Mtu: [Interface.Mtu]
Speed: [Interface.Speed]
MAC: [Interface.PhysAddress]
Status: [Interface.AdminStatus] (operational: [Interface.OperStatus])
So I can see where it is going to and other things like MTU and error rate... or a custom OID or text that you want displayed
interface_tooltip.png
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