HP ZL Chassis' Strange fault with Realtek cards.

[pg_itdept]

Good afternoon.

We have a 8212zl and 5412zl, both partially filled with Gig-T PoE v2 Modules.  Everything is installed and working a treat bar one slight issue.  Our switches have multiple VLAN's configured and are all routing correctly between them.  The ports our workstations are plugged into have been configured as Admin-Edge-Ports and PoE disabled where it's not needed.

From our workstations we browse files on a remote device.  We have a very odd issue where our latest workstations with onboard Realtek Gigabit cards are very slow at browsing the device.  Our workstations that have Broadcom NIC's onboard work fine to the same remote device.  Our workstations that have older Realtek onboard Gigabit NIC's work fine.  The latest workstations with Realtek onboard NIC's will browse the same devices perfectly fine if they are plugged into a non-HP switch which is then connected to our ZL's.

Both Chassis' are behaving the same.  Both run versions K.15.05.0002,ROMK.15.13.  I am not seeing any errors on the port.  I have enabled flow control on the port as this was the only difference I could find between the HP ports and the non-HP ports.  I have updated the drivers on the workstation using both the machine's manufacturer provided ones and the latest from Realtek.  I have even gone back several versions after looking for Realtek specific problems.  It's the same whether the device in on the same VLAN or not.

To sum up this only affects our newer Realtek onboard NIC's when plugged into a HP ZL chassis.  Is there a magic CLI command or web interface tickbox that I have likely missed off.  I have wiresharked and can't see any obvious increased retransmits etc.

Many thanks in advance.

[ryan_e]

Have you attempted to put a dummy switch (such as an 8-port Netgear GS108 or the like) between the 5412 and the workstation? 

Anything interesting in the switch logs?  Are you perhaps forcing a data rate on one device and not the other?

[Patrick R]

I will suggest you contact Support, you might be requested to send a packet capture from that client and the tested topology ( from which switch port to which switch port) 

[cenk sasmaztin]

hi

please make this port configuration and retest

disable flow control on port

and

port speed duplex 1000-full