Abstract: An arbiter device arbitrating resource requests received at a plurality of input ports is proposed, which comprises an arbiter circuit that selects an input port to which a resource request is to be granted and successively grants a number of resource requests received at the selected input port.

Abstract: Router IP port for an IP router of a IP network system, wherein the router IP port comprises: an encapsulating unit for encapsulating IP data packets received from an IP sub-network to generate Ethernet data packets which are forwarded to an Ethernet unit of said IP router; a decapsulating unit for decapsulating Ethernet data packets received from said Ethernet unit to extract IP data packets to be forwarded; an Egress filter unit for filtering the decapsulated IP data packets extracted by said decapsulating unit in response to a match signal which is generated by an Egress comparison unit which compares a hierarchical destination address prefix of said decapsulated IP data packets logically with configuration data stored in a local memory of said router port.

Abstract: An arbiter device arbitrating resource requests received at a plurality of input ports is proposed, which comprises an arbiter circuit that selects an input port to which a resource request is to be granted and successively grants a number of resource requests received at the selected input port.

Abstract: Router IP port for an IP router of a IP network system, wherein the router IP port comprises:an encapsulating unit for encapsulating IP data packets received from an IP sub-network to generate Ethernet data packets which are forwarded to an Ethernet unit of said IP router; a decapsulating unit for decapsulating Ethernet data packets received from said Ethernet unit to extract IP data packets to be forwarded; an Egress filter unit for filtering the decapsulated IP data packets extracted by said decapsulating unit in response to a match signal which is generated by an Egress comparison unit which compares a hierarchical destination address prefix of said decapsulated IP data packets logically with configuration data stored in a local memory of said router port.