How to verify configurations on MLAG peer are consistent?
- Tracy Yang (Unlicensed)
PICOS automatically checks the configuration consistency of the MLAG peer devices to ensure that the MLAG peer devices appear as one device to the downstream device and to make the MLAG function operate normally and smoothly.
After an MLAG related configuration is set, use the following command to show the result of MLAG configuration consistency check result.
run show mlag consistency-parameter { link <link-id>| summary}
For example,
- Show the result of per MLAG configuration consistency check.
admin@Xorplus# run show mlag consistency-parameter link 3 Port Configurations: ----------------------------------------------------------------- Property Local Value Peer Value Result ----------------------- --------------- --------------- ------ MTU 1514 1514 PASS Mac Learning Yes Yes PASS Lag Mode LACP LACP PASS Native Vlan 3 3 PASS Port Vlan Mode Access Access PASS Spanning-Tree Configurations: ----------------------------------------------------------------- Property Local Value Peer Value Result ----------------------- --------------- --------------- ------ Mode PVST PVST PASS BPDU Guard No No PASS Root Guard No No PASS Manual Forwarding No No PASS Link Type P2P P2P PASS Instance Count 1 1 PASS Instance Vlan 3 -- Port Priority 128 128 PASS -- Path Cost 0 0 PASS
- Show the result of global MLAG configuration consistency check.
admin@Xorplus# run show mlag consistency-parameter summary Overall : PASS -------------- Global : PASS Link 1 : PASS Link 2 : PASS Link 3 : PASS MLAG Configurations: ----------------------------------------------------------------- Property Local Value Peer Value Result ----------------------- --------------- --------------- ------ Domain ID 1 1 PASS Node ID 1 0 PASS Peer VLAN 4088 4088 PASS Link Count 3 3 PASS Link IDs 1 2 3 1 2 3 PASS Spanning-Tree Configurations: ----------------------------------------------------------------- Property Local Value Peer Value Result ----------------------- --------------- --------------- ------ Enable Yes Yes PASS Mode PVST PVST PASS Instance Count 65 65 PASS Instance Vlan 1 -- Bridge Priority 32768 32768 PASS -- Hello Time 2 2 PASS -- Forward Delay 15 15 PASS -- Max Age 20 20 PASS Instance Vlan 2 -- Bridge Priority 32768 32768 PASS -- Hello Time 2 2 PASS -- Forward Delay 15 15 PASS -- Max Age 20 20 PASS Instance Vlan 3 -- Bridge Priority 32768 32768 PASS -- Hello Time 2 2 PASS -- Forward Delay 15 15 PASS -- Max Age 20 20 PASS Instance Vlan 4 -- Bridge Priority 32768 32768 PASS -- Hello Time 2 2 PASS -- Forward Delay 15 15 PASS -- Max Age 20 20 PASS DHCP Snooping Configurations: ----------------------------------------------------------------- Property Local Value Peer Value Result ----------------------- --------------- --------------- ------ Enable No No PASS IGMP Snooping Configurations: ----------------------------------------------------------------- Property Local Value Peer Value Result ----------------------- --------------- --------------- ------ Enable No No PASS
In the displayed result, Result shows the consistency check results. The value could be PASS or FAIL:
- If Result is PASS, the configurations of the MLAG peer-link devices are consistent.
- If Result is FAIL, the configurations of the MLAG peer-link devices are inconsistent.
To ensure that the configuration parameters are consistent, we recommend that you run the MLAG consistency check command to display the configurations and the consistency check results for each MLAG peer device once you set a new MLAG related configuration.
For more details about MLAG consistency check, please refer to MLAG Consistency Check.
NOTE:
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