DELL 9.7(0.0) User Manual

Dell(conf-if-po-32)#switchport

Dell(conf-if-po-32)#lacp long-timeout

Dell(conf-if-po-32)#end

Dell# show lacp 32

Port-channel 32 admin up, oper up, mode lacp

Actor System ID: Priority 32768, Address 0001.e800.a12b

Partner System ID: Priority 32768, Address 0001.e801.45a5

Actor Admin Key 1, Oper Key 1, Partner Oper Key 1

LACP LAG 1 is an aggregatable link

A - Active LACP, B - Passive LACP, C - Short Timeout, D - Long Timeout

E - Aggregatable Link, F - Individual Link, G - IN_SYNC, H - OUT_OF_SYNC

I - Collection enabled, J - Collection disabled, K - Distribution enabled L -

Distribution disabled,

M - Partner Defaulted, N - Partner Non-defaulted, O - Receiver is in expired

state,

P - Receiver is not in expired state

Port Te 10/6 is enabled, LACP is enabled and mode is lacp

Actor Admin: State ADEHJLMP Key 1 Priority 128

To view the PDU exchanges and the timeout value, use the debug lacp command. For more
information, refer to

Monitoring and Debugging LACP

The system log (syslog) records faulty LACP actions.

To debug LACP, use the following command.

• Debug LACP, including configuration and events.

EXEC mode

Shared LAG State Tracking

Shared LAG state tracking provides the flexibility to bring down a port channel (LAG) based on the

operational state of another LAG.

At any time, only two LAGs can be a part of a group such that the fate (status) of one LAG depends on the
other LAG.
As shown in the following illustration, the line-rate traffic from R1 destined for R4 follows the lowest-cost
route via R2. Traffic is equally distributed between LAGs 1 and 2. If LAG 1 fails, all traffic from R1 to R4
flows across LAG 2 only. This condition over-subscribes the link and packets are dropped.

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Link Aggregation Control Protocol (LACP)