In book 13 of the odyssey how do Poseidon and Zeus interact?

In the earliest poems, Poseidon is described as indeed equal to Zeus in dignity, but weaker. (Hom. Il. viii. 210, xv. 165, 186, 209; comp. xiii. 355, Od. xiii. 148.) Hence we find him angry when Zeus, by haughty Words, attempts to intimidate him; nay, he even threatens his mightier brother, and once he conspired with Hera and Athena to put him into chains (Hom. Il. xv. 176, &c., 212, &c.; comp. i. 400.); but, on the other hand, we also find him yielding and submissive to Zeus (viii. 440).