VLAG PIM multicast traffic load balancing

摘要

A PIM vLAG network load balancing system includes a first vLAG switch and a second vLAG switch each connected to, and receive data traffic from, an upstream network device. The first and second vLAG switches balance network data traffic by both determining a source IP address and a multicast group address associated with the received data traffic, hashing the addresses, combining the hashed addresses to determine a resultant value, and either dropping or transmitting the received data traffic to a downstream network device based upon the resultant value. The first vLAG switch may transmit and the second vLAG switch may drop the received data traffic if the resultant value is a first binary value. The second vLAG switch may transmit and the first vLAG switch may drop the received data traffic if the resultant value is a second binary value.

主权项

1. A system for Protocol Independent Multicast (PIM) virtual link aggregation group (vLAG) network load balancing, the system comprising:
a first vLAG switch connected to an upstream network device by a first link; a second vLAG switch connected to the upstream network device by a second link and connected to the first vLAG switch by an inter-switch link (ISL), wherein to load balance network data traffic received from the upstream network device, the first vLAG switch and the second vLAG switch are configured to:
determine a source internet protocol (IP) address and a multicast group address associated with the received data traffic;hash the source IP address and the multicast group address;combine the hashed source IP address and the hashed multicast group address to determine a resultant value;determine if the resultant value is an odd value or an even value; and transmit the received data traffic to a downstream network device with one of the first vLAG and the second vLAG and drop the data traffic with the other one of the first vLAG and the second vLAG based upon whether the resultant value is an odd value or an even value.