Alcatel Carrier Internetworking Solutions 6648 - Manual (Page 126)

Troubleshooting a Link Aggregation Failure Troubleshooting Link Aggregation
page 7-6 OmniSwitch Troubleshooting Guide September 2005
LACP 802.3AD
Most of the steps followed previously in this chapter apply to troubleshooting LACP. To verify the config-
uration use the show linkagg [agg. Number]. Again, verify the aggregate is enabled and up.
The most important aspect in troubleshooting LACP is to verify the transmission of valid LACPDUs. For
this you can go to the Dshell section as well as use a sniffer tool.