06-13-2013 04:11 AM
Hi,
How to change LACP timer-value on Windows server 2012, from short to long?
Regards
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2 nexus nexus5k in VPC dmain and Single-Homed FEX N2K-C2248TP-1GE
Layer 2 requirement— The ISSU process will be aborted if the system has any Link Agregration Control Protocol (LACP) fast timers configured.
# show lacp issu-impact
For ISSU to Proceed, Check the following:
1. All port-channel member port should be in a steady state.
2. LACP rate fast should not be enabled on satellite member ports.
The following ports are not ISSU ready
Eth102/1/1
Solved! Go to Solution.
01-20-2016 07:41 AM
MicroSoft has release a patch to enable slow LACP PDUs.
see https://support.microsoft.com/en-us/kb/3109099
06-13-2013 04:42 AM
On linux it's really simple...
lacp_rate=
Specifies the rate at which link partners should transmit LACPDU packets in 802.3ad mode.
Possible values are:
slow or 0 — Default setting. This specifies that partners should transmit LACPDUs every 30 seconds.
fast or 1 — Specifies that partners should transmit LACPDUs every 1 second.
06-16-2014 06:00 AM
Since Windows 2012 Server, Microsoft natively integrated the Load Balancing/Failover (LBFO) into the operating system.
Unfortunately, in an "802.3ad" configuration, the LBFO is fixed at Short Timeout (every 1 sec) and it cannot be changed.
As a consequence, we have an incompatibility with our Cisco Nexus 5000 to perform an In Service Software Upgrade (ISSU) because we need to negotiate a Long Timeout (every 30 sec).
To work around this problem, we passed by the new version of the Broadcom BACS or Intel ANS with latest drivers and not use the MS LBFO.
06-16-2014 06:19 AM
http://www.microsoft.com/en-us/download/details.aspx?id=40319
Extract page 8
Windows NIC Teaming always operates in LACPs Active mode with a short timer. No option is presently available to modify the timer or change the LACP mode.
01-20-2016 07:41 AM
MicroSoft has release a patch to enable slow LACP PDUs.
see https://support.microsoft.com/en-us/kb/3109099
01-10-2017 12:56 AM
Thank you for your reply.
Regards
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