smp_86112
Mar 23, 2010Cirrostratus
Proper Trunk/Etherchannel LACP Configuration
I'm working with LACP and trunks for the first time on a 10.1.0 LTM box. I have read the TMOS Config Guide, and there is some ambiguity around the proper way to configure LACP between the trunk and the etherchannel on the switch.
First, is it better to have the Cisco run Active and the LTM Passive? Cisco Passive and LTM Active? Or both Active?
I (finally) have this working with the Cisco Active and the LTM Passive. But if I display the etherchannel details, the output shows the Cisco is sending "Slow LACPDUs". Network traces show that the frames are send at a frequency of ~7 seconds. Is there a way to increase this frequency?
The TMOS Config Guide states the LTM can send these LACP frames every second using a Short Timeout.
My preference is to send these frames every second. Assuming both sides should not be Active, that means the Cisco will need to run Passive.
Or should they both run Active? The TMOS Config Guide isn't clear on this. I'd appreciate your input.