The Catalyst 8540 Two-Port Enhanced Gigabit Ethernet Module is ideal for supporting Layer 3, Gigabit backbone applications that require non-blocking, wire-speed performance. The Two-Port Enhanced Gigabit Ethernet Module is supported by the Catalyst 8540 platform, a high-end multi-service switch that provides large enterprises and service providers with both Layer 3 and ATM switching in one integrated platform.This module provides 16K routing table.