Amer Networks SS2R48G4i V2 - Manual (Page 166)

SS2R24G4i/SS2R48G4i
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Command debug lacp
no debug lacp
Function Enables the LACP debug function “no debug lacp” command disables this debug
function.
Command mode
Admin Mode
Default LACP debug information is disabled by default.
17.4.2 Port Channel Channel Troubleshooting
If problems occur when configuring port aggregation, please first check the following for causes.
z Ensure all ports in a port group have the same properties, i.e., whether they are in full-duplex mode,
forced to the same speed, and have the same VLAN properties, etc. If inconsistency occurs, make
corrections.
z Some commands cannot be used on a port in port-channel, such as arp, bandwidth, ip, ip-forward,
etc.
z When port-channel is forced, as the aggregation is triggered manually, the port group will stay
unaggregated if aggregation fails due to inconsistent VLAN information. Ports must be added to or
removed from the group to trigger another aggregation, if VLAN information inconsistency persists,
the aggregation will fail again. The aggregation will only succeed when VLAN information is
consistent and aggregation is triggered due to port addition or removal.
z Verify that port group is configured in the partner end, and in the same configuration. If the local end
is set in manual aggregation or LACP, the same should be done in the partner end; otherwise port
aggregation will not work properly. Another thing to be noted is that if both ends are configured with
LACP, then at least one of them should be in ACTIVE mode, otherwise LACP packet won’t be
initiated.
z LACP cannot be used on ports with Security and IEEE 802.1x enabled.
z Once the port-channel created, all the configuration of the ports can only be applied to port-channel
ports
z LACP should be mutually exclusive to Security and 802.1X ports, if a port has been configured with
the two protocols above, the LACP is not allowed to be enabled.