Hi
I am having real trouble with a new batch of Intel NIC's - We were using another type of 10gig card and they were fine but got EOL'd from Intel and are now using something subtly different. I dont have all the details yet on the issue but basically there is a major delay in when the link comes up and this is causing major issues with PXE amongst other things. The log states this
Nov 23 23:18:53 xxx kernel: ADDRCONF(NETDEV_UP): eth0: link is not ready Nov 23 23:19:09 xxx kernel: ixgbe: eth0 NIC Link is Up 10 Gbps, Flow Control: RX/TX Nov 23 23:19:09 xxx kernel: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
So 16 seconds for the link to come up - The only real difference between the old card and the new is that the new seems to support FCOE whereas the older one didnt
Has anyone got any clues as to what causes link delays?
thanks
On Tue, 23 Nov 2010, Tom Brown wrote:
Has anyone got any clues as to what causes link delays?
The only time I have seen such a delay in the past was because of OSPF on the Cisco switch it was connected to.
Steve ---------------------------------------------------------------------------- Steve Thompson E-mail: smt AT vgersoft DOT com Voyager Software LLC Web: http://www DOT vgersoft DOT com 39 Smugglers Path VSW Support: support AT vgersoft DOT com Ithaca, NY 14850 "186,282 miles per second: it's not just a good idea, it's the law" ----------------------------------------------------------------------------
On 11/24/2010 09:52 AM, Tom Brown wrote:
The only time I have seen such a delay in the past was because of OSPF on the Cisco switch it was connected to.
these are Arista DCS-7148SX's so i'll have to chat to the network guys. On the kernel line can you state delay=x so that it waits for a link ??
thanks _______________________________________________
Tom,
I've seen these delays before on Dell switches, we had to change them to use fastlink and it resolved the issue. Do Arista's have a similar setting ?
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Philip Manuel -
Steve Thompson -
Tom Brown