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Example 2

VLANs have the different Hash Table Sizes

Configuring the Avaya Multiservice switch for 6 "large" VLANs (4000 users on each), 30 "medium" VLANs (1000 users on each), and 50 "small" VLANs (200 users on each). Using the "Hash Table Guidelines", each "large" VLAN should have a hash table size around (1/4)*4000=1000, each "medium" VLAN around (1/ 4)*1000=250, and each "small" VLAN should have a hash table size around (1/4)*200=50. We also want to make sure that the total amount of memory used for the Hash Tables is less then 20k, which it will be (~17K).

6 VLANs times 1024 = 6,144

30 VLANs times 256 = 7,680

50 VLANs times 64 = 3,200

Total AFT Memory used or Hash Tables = 17,024 or ~ 17K

This meets the guideline.


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