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How to configure smart pair on CLI and Web GUI? Follow

jeff_cheng 鄭皓文

February 01, 2021 09:23
Updated

Support models: ECS4100 series

Firmware version: 1.2.30.183 and above

Scenario:

Concept:

A smart pair is a function which provide layer 2 link redundancies, one of which is primary port and the other is backup port. All traffics are forwarded through primary port and backup port is at standby state. If primary port is link-down, the backup port will be activated and all traffics will forwarded through backup port. When primary port recovers, all traffics will be forwarded through primary port after a WTR time (wait-to-restore delay).

CLI Configuration:
Step 1) Disable spanning-tree on each port
Dut1:

Dut1#configure
Dut1(config)#interface ethernet 1/9,10,11
Dut1(config-if)#spanning-tree spanning-disabled

Dut2:

Dut2#configure
Dut2(config)#interface ethernet 1/10,12
Dut2(config-if)#spanning-tree spanning-disabled

Dut3:

Dut3#configure
Dut3(config)#interface ethernet 1/9,11,12
Dut3(config-if)#spanning-tree spanning-disabled

*Note: Smart Pair can’t be configured as one of these port types.

LACP enable port
Spanning Tree enabled port

Step 2) Set the smart pair configuration on Dut3
Dut3:

Dut3#configure
Dut3(config)#smart-pair 1
Dut3(config-smart-pair)#primary-port ethernet 1/11
Dut3(config-smart-pair)#backup-port ethernet 1/12

Step 3) Check the smart pair configuration is correct
Dut3:

Dut3#show smart-pair 1
Primary Port : Eth 1/11 (forwarding)
Backup Port  : Eth 1/12 (blocking)
Wait-To-Restore Delay : 30 seconds

*Default WTR time is 30 seconds

Step 4) Client A keep pinging Clint B

The traffic is normal.

Step 5) Client A keep pinging Clint B and then unplug Dut3_Port1/11

Since the traffic failover to the backup port (Port1/12), the ICMP traffic will still work.

Step 6) Check the smart pair status
Dut3:

Dut3#show smart-pair 1
Primary Port  : Eth 1/11 (blocking)
Backup Port   : Eth 1/12 (forwarding)
Wait-To-Restore Delay : 30 seconds

Step 7) Plug in Dut3_Port1/11 and wait for 30 seconds

The ICMP traffic will still work when the traffic transfer back to the primary port

Step 8) Check the smart pair status
Dut3:

Dut3#show smart-pair 1
Primary Port  : Eth 1/11 (forwarding)
Backup Port   : Eth 1/12 (blocking)
Wait-To-Restore Delay : 30 seconds

WEB Configuration:

Step 0) Set the management IP on each switch
Dut1:

Dut1#configure
Dut1(config)#interface vlan 1
Dut1(config-if)#ip address 192.168.1.1/24

Dut2:

Dut2#configure
Dut2(config)#interface vlan 1
Dut2(config-if)#ip address 192.168.1.2/24

Dut3:

Dut3#configure
Dut3(config)#interface vlan 1
Dut3(config-if)#ip address 192.168.1.3/24

Step 1) Log in the switch by Web GUI
Dut1:

Step 2) Disable the spanning tree

Step 3) Disable the spanning tree
Dut2: Follow the same steps as Dut1

Step 4) Disable the spanning tree
Dut3: Follow the same steps as Dut1

Step 5) Set the smart pair configuration on Dut3

Step 6) Check the smart pair status

The status is normal
Step 7) Client A keep pinging Clint B

The traffic is normal
Step 8) Client A keep pinging Clint B and then unplug in Dut3_Port1/11

Since the traffic failover to the backup port (Port1/12), the ICMP traffic will still work.

Step 9) Check the smart pair status

Step 10) Plug in Dut3_Port1/11 and wait for 30 seconds

The ICMP traffic will still work when the traffic transfer back to the primary port

Step 11) Check the smart pair status