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DES-7200 Configuration Guide Chapter 4 LACP Configuration
4-6
As shown in the figure-2, on the SwitchA, set the LACP system priority as 4096,
enable the LACP on the interface Gi 0/1、Gi 0/2、 Gi 0/3, and set the LACP port
priority as 4096:
SwitchA#configure terminal
SwitchA(config)# lacp system-priority 4096
SwitchA(config)# interface range GigabitEthernet 0/1-3
SwitchA(config-if-range)# lacp port-priority 4096
SwitchA(config-if-range)# port-group 3 mode active
SwitchA(config-if-range)# end
On the SwitchB, set the LACP system priority as 61440, enable the LACP on the
interface Gi 0/1、Gi 0/2、 Gi 0/3, and set the LACP port priority as 61440:
SwitchB# configure terminal
SwitchB(config)# lacp system-priority 61440
SwitchB(config)# interface range GigabitEthernet 0/1-3
SwitchB(config-if-range)# lacp port-priority 61440
SwitchB(config-if-range)# port-group 3 mode active
SwitchB(config-if-range)# end
After the configuration, if the LACP negotiation succeeds, it prompts the following
log:
*Feb 25 17:11:31: %LACP-5-BUNDLE: Interface Gi0/1 joined AggregatePort 3.
*Feb 25 17:11:32: %LACP-5-BUNDLE: Interface Gi0/2 joined AggregatePort 3.
*Feb 25 17:11:32: %LACP-5-BUNDLE: Interface Gi0/3 joined AggregatePort 3.
*Feb 25 17:11:32: %LINEPROTO-5-UPDOWN: Line protocol on Interface AggregatePort
3, changed state to up
Then show the member port state in the aggregation group on the SwitchA:
DES-7200(config)#show LACP summary
Flags: S - Device is requesting Slow LACPDUs
F - Device is requesting Fast LACPDUs.
A - Device is in active mode. P - Device is in passive mode.
Aggregate port 3:
Local information:
LACP port Oper Port Port
Port Flags State Priority Key Number State
--------------------------------------------------------------
Gi0/1 SA bndl 4096 0x3 0x1 0x3d
Gi0/2 SA bndl 4096 0x3 0x2 0x3d
Gi0/3 SA bndl 4096 0x3 0x3 0x3d