Packet loss on ce interface.


 
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Operating Systems Solaris Packet loss on ce interface.
# 8  
Old 01-06-2011
Quote:
Originally Posted by sparcman
Hi,

Thanks for all your replies.

The settings of the interface are below. These settings are forced. When I use auto-neg the speed of the interface drops to 10 half duplex even though it should auto-neg to 1000 full, so I can't use auto-neg. We don't know why this happens either.

lp_cap_asmpause 0 lp_cap_pause 0 link_T4 0 link_speed 1000
link_duplex 2 link_asmpause 0 link_pause 0 link_up 1 mac_mtu 1522

I've been told a patch may help?

Thanks,

Sparcman
The autonegotiation is probably failing because of the same hardware problem that's causing your packet loss.

It's broke.

Effectively saying, "WORK!!! **** YOU!!!" with forced configuration settings isn't going to change that.
This User Gave Thanks to achenle For This Post:
# 9  
Old 01-06-2011
+1 !
# 10  
Old 01-06-2011
Quote:
Originally Posted by DukeNuke2
have you checked the cable and the switch and another nic (if you have one in your machine)?
Will try that. Thanks.
# 11  
Old 01-06-2011
I have seen this problem when interface choose a lower duplex setting. Generally i use this simple trick.
1. enable auto neg with all options enabled
2. disable all capabilities except adv_1000fdx_cap.

This will make interface run auto-neg but it will not negotiate anything below 1000Full.
I have more than 10 machines running like this. no issue since past 9 months Smilie.
Just make sure to add a start up script to make these changes available after reboot. or if you are comfortable you can edit /etc/system file.

Hope it helps.
This User Gave Thanks to mtomar For This Post:
# 12  
Old 01-10-2011
Hi mtomar,

Thanks for your post. Here are my settings for the ce4 interface which are set in an init script. How do I enable all auto-neg options? I would usually just set the ndd -set /dev/ce adv_1000fdx_cap 1 to 0 and the autoneg to 1?


ndd -set /dev/ce instance 4
ndd -set /dev/ce adv_1000fdx_cap 1
ndd -set /dev/ce adv_1000hdx_cap 0
ndd -set /dev/ce adv_100fdx_cap 0
ndd -set /dev/ce adv_100hdx_cap 0
ndd -set /dev/ce adv_10fdx_cap 0
ndd -set /dev/ce adv_10hdx_cap 0
ndd -set /dev/ce adv_autoneg_cap 0

Thanks,

Sparcman
# 13  
Old 01-12-2011
Code:
ndd -set /dev/ce adv_autoneg_cap 1

Enables auto neg.
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