**HPE Switch 5500G - Why Does the Logbuffer States "ADBM/5/MAC table almost full:- 2 - MAC table is almost full"**

 **Title:**

  HPE Switch 5500G - Why Does the Logbuffer States "ADBM/5/MAC table almost full:- 2 - MAC table is almost full"

 **Questions:**

  Why does the Switch 5500G report "MAC table is almost full" when the "display mac-address statistics" show I have 
  many more "available" address spaces un-occupied?

 **Answers:**

  If the hash results in a collision in the storage of a particular MAC Address and that location is already 
  occupied the informational message will appear at the console and in the logbuffer. This does not prevent the MAC 
  Address from being entered in the table (up to 8 MAC Addresses can be hashed to the same location) and there is 
  no impact to the switching of the device.

 **Product:**

  3CR17250-91 - 3Com Switch 5500G-EI 24-port
  3CR17251-91 - 3Com Switch 5500G-EI 48-port
  3CR17252-91 - 3Com Switch 5500G-EI PWR 24-port
  3CR17253-91 - 3Com Switch 5500G-EI PWR 48-port
  3CR17254-91 - 3Com Switch 5500G-EI 24-port Chassis
  3CR17258-91 - 3Com Switch 5500G-EI 24-port SFP
  
 **Fact:**

  "ADBM/5/MAC table almost full:- 2 - MAC table is almost full" is an informational message about the storage 
  location of a MAC Address when added to a specific hashed location in the storage table.