Questions tagged [autonegotiation]

For questions about Autonegotiation in a network perspective, where Autonegotiation is an Ethernet procedure by which two connected devices choose common transmission parameters, such as speed, duplex mode, and flow control. For instance, you are troubleshooting an issue where a host doesn't negotiate the correct link speed.

Filter by
Sorted by
Tagged with
19
votes
2answers
24k views

Ethernet autonegotiation differences between (10M | 100M | 1G) Ethernet

I am studying for CCNA and on Wendell Odom's book is said that(regarding autonegotiation): When autonegotiation fails on one node, to choose (half/full-duplex) we must use the rule: If you have a 10/...
1
vote
2answers
5k views

Forced full duplex and autonegotiation

Let's say I have two connected switches. I specifically configure (force) one of them to use full duplex and the other one I configure to use autonegotiation. Why does this config fail and the autoneg....
5
votes
2answers
5k views

How does auto-negotiate determine link speeds?

I have two Linux hosts connected via category 6 wire. How do the LAN cards negotiate a link speed? Essentially, I am trying to solidify if I am actually hammering a 1GbE NIC with traffic from a 10Gbe ...