Systems and methods to route over a link aggregation group to a true next hop

A method to facilitate routing to the actual next hop in Link Aggregation Group (LAG), the method comprising:

• receiving, from a host, packets at a routing device in a path to an intended network node;
• determining a next hop routing address from a route table stored in memory;
• based on the next hop routing address, looking up in an Address Resolution Protocol (ARP) table an entry for an egress interface data, the egress interface data corresponding to a routing information;
• in response to receiving a packet from a host, determining from the egress interface data an egress interface that is associated with a sub-LAG having a sub-LAG ID, the sub-LAG is associated with a parent LAG that has a parent LAG ID;
• identifying one or more ports communicatively coupled to one or more LAG peer nodes from the plurality of LAG peer nodes;
• and
• using the egress interface to send the packet on the sub-LAG to the intended network node using the sub-LAG ID, the sub-LAG having been formed by using Link layer Discovery Protocol (LLDP) information to group a set of links that connect to a unique LAG peer node.

An information handling system to facilitate routing to the actual next hop comprising:

• a plurality of input/output (I/O) ports, at least a portion of which are configurable to facilitate communications with one or more devices and configurable to be part of a link aggregation group (LAG);
• one or more processors that are communicatively coupled to the plurality of I/O ports;
• and
• a non-transitory memory comprising one or more sequences of instructions which, when executed by at least one of the one or more processors, causes steps to be performed comprising:
• receiving, from a host, packets at a routing device in a path to an indented network node;
• determining a next hop routing address from a route table stored in memory;
• based on the next hop routing address, looking up in an Address Resolution Protocol (ARP) table an entry for an egress interface, the entry for the egress interface corresponding to a routing information;
• determining from the entry an egress interface that is associated with a sub-LAG that has a sub-Lag ID and that identifies one or more ports communicatively coupled to one or more LAG peer nodes from a plurality of LAG peer nodes, the sub-LAG having been formed by using Link Layer Discovery Protocol (LLDP) information to group a set of links that connect to a unique LAG peer node;
• and
• using the sub-LAG to send a packet to the intended network node, the sub-LAGs being associated with a parent LAG that has a parent LAG ID.