Why does an NE40E fail to be interconnected with a Huawei switch through
optical interfaces although the Rx/Tx optical power of optical modules is
optical power of the optical modules on interfaces at both ends is normal, but
the negotiation modes at both ends are different. According to the product
document, it is learned that:
The auto-negotiation function of optical interfaces on an NE40E is
disabled by default.
The auto-negotiation function of optical interfaces on a Huawei switch is
enabled by default.
To address the
problem, change the negotiation modes at both ends to be consistent.