Re: BCM5461 phy issue in 10M/Full duplex
On Wed, 18 Oct 2006, Rick Jones wrote: > > I believe, but need to double check, that if I leave the BCM5461 in > > autoneg, and foce the switch to 10M/full that the BCM5461 will autoneg at > > 10M/half duplex. > > Indeed, if one side is hardcoded, autoneg will "fail" and the side trying to > autoneg is required by the specs (not that I know chapter and verse to quote > from the IEE stuff :( to go into half-duplex. Rather than forcing a PHY into 10Mbps, you may limit its advertised list of speeds/duplex settings and let autonegotiation do the rest. It depends on how smart code to manage your switch is; it's certainly doable with Linux (you can do it with `mii-tool'; not sure about `ethtool') as long as the NIC driver supports the necessary ioctls. > Was 10M/Fullduplex ever standardized? If not I could see where kit might not > be willing/able to autoneg to that. It is standard. Maciej - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: BCM5461 phy issue in 10M/Full duplex
Kumar Gala wrote: I was wondering if anyone has had any issues when trying to force a BCM5461 phy into 10M/full duplex. I seem to be having an issue in the two managed switches I've tried this on but autoneg to 10/half. This causes a problem in that I start seeing a large number of frame errors. I believe, but need to double check, that if I leave the BCM5461 in autoneg, and foce the switch to 10M/full that the BCM5461 will autoneg at 10M/half duplex. Indeed, if one side is hardcoded, autoneg will "fail" and the side trying to autoneg is required by the specs (not that I know chapter and verse to quote from the IEE stuff :( to go into half-duplex. Was 10M/Fullduplex ever standardized? If not I could see where kit might not be willing/able to autoneg to that. Just wondering if anyone else has seen similar behavior with this PHY. thanks - kumar - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
BCM5461 phy issue in 10M/Full duplex
I was wondering if anyone has had any issues when trying to force a BCM5461 phy into 10M/full duplex. I seem to be having an issue in the two managed switches I've tried this on but autoneg to 10/half. This causes a problem in that I start seeing a large number of frame errors. I believe, but need to double check, that if I leave the BCM5461 in autoneg, and foce the switch to 10M/full that the BCM5461 will autoneg at 10M/half duplex. Just wondering if anyone else has seen similar behavior with this PHY. thanks - kumar - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
