I am working on a scenario where a single node is a bottle neck. Many other nodes are forwarding via this node, and i would like to check the queue buffer - where packets are stored before they are processed / forwarded- regularly. But i can not find the exact routine where multiple packets are stored in a buffer in the node before processing.
I have checked packetbuf.c, queuebuf.c files. At this point i am not even sure if Queuebuf is used to store IPv6 packets anymore.