If the filer is set to full (which it is) then the problem lies with the switch (in every case I've ever seen).
On the switch, the flowcontrol should be set to 'transmit desired' and 'receive desired'. Otherwise, the filer will accept whatever the switch is set to during the negotiation.
Typically, the Cisco default is 'transmit desired', which forces the filer into 'receive' mode - meaning the switch can tell the filer to stop sending frames, but the filer cannot tell the switch to 'pause'.
However, I've never seen a Foundry switch have a flow control setting in the past - if I recall, they did not support it's configuration. I'd be very interested in knowing what Foundry means by 'flow control enabled' - is that send? receive? Both??
Glenn
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From: owner-toasters@mathworks.com on behalf of Philip Boyle Sent: Mon 3/27/2006 10:56 AM To: toasters@mathworks.com Subject: Flow Control Query
Hi guys,
Have any of you had issues with the network interface on a filer not negociating to full flowcontrol?
I'm seeing the issue using gigE dual port cards on the filer connecting back into a jet core foundry switch Gig Copper Module. Filer is running ONTAP 7.0.4.
Interface is fine:
e9: flags=848043<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether xxxxxxxxxxx (auto-1000t-fd-up) flowcontrol full trunked vifbxx
Switch setup is fine:
GigabitEthernetx/x is up, line protocol is up Hardware is GigabitEthernet, address is xxxxxxxxxx (bia xxxxxxxxxx) Configured speed auto, actual 1Gbit, configured duplex fdx, actual fdx Member of Lx VLAN ID xxx, port is untagged, port state is FORWARDING STP configured to ON, priority is level0, flow control enabled
ifstat shows flowcontrol set to none :-(
ifstat e9 LINK_INFO Current state: up | Up to downs: 9 | Auto: on Speed: 1000m | Duplex: full | Flowcontrol: none
Potential hardware compatability issue.........?
Note, mirrored setup using fibre cards/ports works fine.
The fibre card is: 1000sx-fd
gigE card is: 1000t-fd
Thanks, Philip
------------------ Philip Boyle eircom net systems
philip.boyle@eircom.net tel: +353 1 701 0921 mob: +353 85 1744 354