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Bring high-density Small Form-Factor Pluggable (SFP) 1 Gigabit Ethernet (GE) connectivity to the Cisco 4000 Series Integrated Services Routers with this 2-port WAN network interface module. Providing maximum flexibility, the module accelerates applications such as Ethernet WAN access, inter-VLAN routing, and high-speed connectivity to LAN switches and servers.
The ports work as routed Layer 3 ports. Layer 2 switching between local ports on the module or between ports on the module and other ports within the router system is not supported. The port terminates Layer 2 trunks from externally connected switches, and Layer 2 trunk and VLAN information is not switched onto other ports in the system. The host router routes all traffic entering these modules.