HITLESS SWITCHOVER BANDWIDTH SHARING IN A COMMUNICATION NETWORK
First Claim
1. A node for a packet communication network, the node comprising:
- a switch fabric; and
first and second ingress modules,the first ingress module being adapted;
the first ingress module being adapted;
to receive a first stream of packets from a first physical path through the network; and
to forward a copy of the first stream of packets to an intermodule communication channel;
to receive a copy of a second stream of packets from the second ingress module; and
when selected to forward packets to the switch fabric, to select packets from the first stream of packets and the copy of the second stream of packets for forwarding as a single packet stream to the switch fabric based on sequence numbers in the packets;
the second ingress module being adapted;
to receive the second stream of packets from a second physical path through the network; and
to forward the copy of the second stream of packets to the intermodule communication channel.
1 Assignment
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Accused Products
Abstract
Described is a node comprising a switch fabric and first and second ingress modules. The first ingress module receives a first stream of packets from a first physical path through the network; forwards a copy of the first stream of packets to an intermodule communication channel; selects packets from the first stream of packets and a copy of a second stream of packets for forwarding to the switch fabric. The second ingress module receives the second stream of packets from a second physical path through the network; forwards the copy of the second stream of packets to the intermodule communication channel; and selects packets from the copy of the first stream of packets and the second stream of packets for forwarding to the switch fabric based on sequence numbers in the packets.
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Citations
20 Claims
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1. A node for a packet communication network, the node comprising:
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a switch fabric; and first and second ingress modules, the first ingress module being adapted; the first ingress module being adapted; to receive a first stream of packets from a first physical path through the network; and to forward a copy of the first stream of packets to an intermodule communication channel; to receive a copy of a second stream of packets from the second ingress module; and when selected to forward packets to the switch fabric, to select packets from the first stream of packets and the copy of the second stream of packets for forwarding as a single packet stream to the switch fabric based on sequence numbers in the packets; the second ingress module being adapted; to receive the second stream of packets from a second physical path through the network; and to forward the copy of the second stream of packets to the intermodule communication channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating a node for a packet communication network, the method comprising:
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operating a first ingress module; to receive a first stream of packets from a first physical path through the network; to forward a copy of the first stream of packets to an intermodule communication channel; to receive a copy of a second stream of packets from a second ingress module; and when selected to forward packets to the switch fabric, to select packets from the first stream of packets and the copy of the second stream of packets for forwarding as a single packet stream to the switch fabric based on sequence numbers in the packets; operating the second ingress module; to receive the second stream of packets from a second physical path through the network; and to forward the copy of the second stream of packets to the intermodule communication channel. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification