The Avaya P330 family of stackable Ethernet workgroup switches includes a range of modules with 10/100/1000 Mbps ports, Layer 3 capability and ATM Expansion sub-module. The base product is the Avaya P333T switch which has 24x10/100 Mbps ports and an Expansion sub-module slot. The optional expansion submodules provide additional Ethernet, Fast Ethernet, and Gigabit Ethernet
connectivity.