[FS#4032] Uplink ethernet ports not connecting at gigabit speeds (Ath79)

OpenWrt Bugs openwrt-bugs at lists.openwrt.org
Fri Oct 8 10:34:31 PDT 2021


The following task has a new comment added:

FS#4032 - Uplink ethernet ports not connecting at gigabit speeds (Ath79)
User who did this - Boris Gjenero (dreamlayers)

Thank you for the quick reply. I will do that testing tonight, when internet access going down for a bit won't be a problem. Right now I was learning about how the various components work together, and I think this problem has to do with the Ethernet phy, not the Ethernet interface. The mii-tool program, available via opkg, provides more information about the phy:
# mii-tool -v -v -v -v eth1
Using SIOCGMIIPHY=0x8947
eth1: negotiated 100baseTx-FD, link ok
  registers for MII PHY 4:
    3100 796d 004d d041 0101 c1e1 000d 2801
    0000 0000 1000 0000 0000 0000 0000 2000
    0862 7c10 0000 1002 002c 0000 0000 0000
    3200 0000 0000 0000 0000 0000 824e 0000
  product info: vendor 00:13:74, model 4 rev 1
  basic mode:   autonegotiation enabled
  basic status: autonegotiation complete, link ok
  capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
  advertising:  100baseTx-FD
  link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

The eth0 port which goes to the switch chip does not have a phy.

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