We are seeing spectrum sending GetNextRequest with community following at symbol - Why is this

Document ID : KB000117370
Last Modified Date : 20/11/2018
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Introduction:
Tech doc to confirm why Spectrum sends GetNextRequest with community following @ character
 
Question:
We are seeing spectrum sending GetNextRequest with community following @ character- Why is this
Answer:
The reason you are seeing getnext with community following with "@" is because that is done by AutoDiscovery when reading the dot1dTpFdb (forwarding table) for VLANs.
 
Some devices store the information in the dot1dTpFdb table per VLAN so Spectrum has to read the table for each VLAN configured on the device to get a complete list of mac addresses from the table.