What is "aupamanyava"

In the Vamsa Brahmana of Vedic literature, Aupamanyava is listed as a Vedic teacher and sage.

1.18 Ānandajaścāndʰanāyanaḥ Śāmbāccʰārkarākṣyāt Kāmbojāccopamanyavāt|| 1.19 Śāmbaḥ Śārkarākṣyaḥ Kāmbojaścaupamanyavo Madrakārāccʰauṅgāyaneḥ|| 1.20 Madrakāraḥ Śauṅgāyaniḥ svāterauṣṭrākṣeḥ|| — (Vamsa Brahmana 1.18-19). of the Sama Veda.

The patronymic Aupamanyava establishes him as a descendant of Upamanyu, while the name Kamboja suggests an association with the Kamboja kingdom of the (late Vedic) Mahajanapada period.

Vamsa Brahmana informs us that sage Anandaja had received the Vedic learning from sage Samba, the son of Sarkaraksa, as well as from Kamboja, the son or descendant of Upamanyu.