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US 2003/0147387 A1Published application
Forwarding packets to aggregated links using distributed ingress card processing
AssigneeFujitsu Network Communications, Inc.
InventorsBharathi B. Devi, Kyl W. Scott, Edward A. Harbin, Nikhil Kanodia
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Abstract
A method perfomed by an ingress card includes receiving a packet with a destination identifier, and determining an aggregated link associated with the destination identifier that includes multiple egress ports. The method further includes determining a destination port from the egress ports of the aggregated link, and communicating the packet to the destination port.
Claims25
A method performed by an ingress card, comprising:
- receiving a packet comprising a destination identifier;
- determining an aggregated link associated with the destination identifier, the aggregated link comprising a plurality of egress ports;
- determining a destination port from the egress ports of the aggregated link;
- and
- communicating the packet to the destination port.
2 more elements
A method performed by an ingress card, comprising:
- receiving a packet;
- determining a plurality of egress links for the packet;
- for each egress link, determining whether the egress link is an aggregated link comprising a plurality of egress ports or a non-aggregated link comprising a single egress port;
- for each aggregated link:
- determining a destination port from the egress ports;
- and
- communicating the packet to the destination port;
- and
- for each non-aggregated link, communicating the packet to the single egress port of the non-aggregated link.
6 more elements
An ingress card, comprising:
- an interface operable to receive a packet;
- a memory operable to store:
- destination information comprising a plurality of destination identifiers, each destination identifier associated with a link;
- and
- port information for a plurality of links, the port information identifying one or more egress ports for each link;
- and
- a processor operable to:
- determine one or more destinations for the packet;
- for each destination, determine an associated link;
- for each associated link that is aggregated, determine a destination port;
- and
- communicate the packet to each destination port using the interface.
9 more elements
Logic embodied in a computer readable medium operable to perform the steps of:
- receiving a packet comprising a destination identifier;
- determining an aggregated link associated with the destination identifier, the aggregated link comprising a plurality of egress ports;
- determining a destination port from the egress ports of the aggregated link;
- and
- communicating the packet to the destination port.
2 more elements
Logic embodied in a computer readable medium operable to perform the steps of:
- receiving a packet;
- determining a plurality of egress links for the packet;
- for each egress link, determining whether the egress link is an aggregated link comprising a plurality of egress ports or a non-aggregated link comprising a single egress port;
- for each aggregated link:
- determining a destination port from the egress ports;
- and
- communicating the packet to the destination port;
- and
- for each non-aggregated link, communicating the packet to the single egress port of the non-aggregated link.
6 more elements
A method performed by an ingress card, comprising:
- receiving a packet comprising a destination identifier;
- determining whether the destination identifier corresponds to any one of a plurality of learned destinations in destination information stored in a memory;
- if the destination identifier corresponds to one of the learned destinations:
- determining one or more egress link addresses associated with the destination identifier;
- for each egress link address, determining one or more egress ports associated with the egress link address;
- for each egress link address associated with more than one egress port, determining a destination port for the packet from the egress ports associated with egress link;
- and
- for each egress link address associated with one egress port, determining that the egress port is a destination port for the packet;
- and
- for each egress link address, communicating a copy of the packet to the destination port associated with the egress link;
- and
- if the destination port does not correspond to one of the learned destinations:
- determining one or more available egress links;
- communicating a copy of the packet to every available egress link except the available egress link from which the packet was received;
- receiving an acknowledgement from a destination;
- and
- updating the destination information in response to the acknowledgement.
14 more elements
Dependencies are inferred from the claim text.