MULTICAST DUAL JOIN FOR RING NETWORK TOPOLOGIES
First Claim
1. A network node for deployment in a packet-switched network, the network node comprising:
- a primary incoming interface operable to receive traffic associated with a particular source and multicast group;
a secondary incoming interface operable to serve as a backup interface if the primary incoming interface or a transmission path coupled to the primary incoming interface is inoperative; and
a data flow control unit operable to determine whether the network node is part of a ring topology and if so, forward traffic received on the primary incoming interface associated with the source and multicast group to both a host which joined the multicast group and the secondary incoming interface and forward traffic received on the secondary incoming interface associated with the source and multicast group to the primary incoming interface.
1 Assignment
0 Petitions
Accused Products
Abstract
A network node includes a primary incoming interface, a secondary incoming interface and a data flow control unit. The primary incoming interface is operable to receive traffic associated with a particular source and multicast group. The secondary incoming interface is operable to serve as a backup interface if the primary incoming interface or a transmission path coupled to the primary incoming interface is inoperative. The data flow control unit is operable to determine whether the network node is part of a ring topology and if so, forward traffic received on the primary incoming interface associated with the source and multicast group to both a host which joined the multicast group and the secondary incoming interface and forward traffic received on the secondary incoming interface associated with the source and multicast group to the primary incoming interface.
-
Citations
23 Claims
-
1. A network node for deployment in a packet-switched network, the network node comprising:
-
a primary incoming interface operable to receive traffic associated with a particular source and multicast group; a secondary incoming interface operable to serve as a backup interface if the primary incoming interface or a transmission path coupled to the primary incoming interface is inoperative; and a data flow control unit operable to determine whether the network node is part of a ring topology and if so, forward traffic received on the primary incoming interface associated with the source and multicast group to both a host which joined the multicast group and the secondary incoming interface and forward traffic received on the secondary incoming interface associated with the source and multicast group to the primary incoming interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method of operating a network node deployed in a packet-switched network, the method comprising:
-
receiving traffic associated with a particular source and multicast group on a primary incoming interface of the network node; using a secondary incoming interface of the network node as a backup interface if the primary incoming interface or a transmission path coupled to the primary incoming interface is inoperative; determining whether the network node is part of a ring topology; and if the network node is part of a ring topology, forwarding traffic received on the primary incoming interface associated with the source and multicast group to both a host which joined the multicast group and the secondary incoming interface and forwarding traffic received on the secondary incoming interface associated with the source and multicast group to the primary incoming interface. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
Specification