Configuring the Active-Backup Bonding Mode on the MZ520

For details about port bonding, see NIC team configuration in Configuring Port Bonding for the MZ520. The following lists the configuration on each MZ520:

MZ520 (1):

Configure NIC teaming for Port 0 and Port 1 in active-backup mode.

The IP address of the NIC team is 192.168.10.10/24 and belongs to VLAN 10.

MZ520 (2):

Configure NIC teaming for Port 0 and Port 1 in active-backup mode.

The IP address of the NIC team is 192.168.20.10/24 and belongs to VLAN 20.

MZ520 (3):

Configure NIC teaming for Port 0 and Port 1 in active-backup mode.

The IP address of the NIC team is 192.168.10.30/24 and belongs to VLAN 10.

MZ520 (4):

Configure NIC teaming for Port 0 and Port 1 in active-backup mode.

The IP address of the NIC team is 192.168.20.40/24 and belongs to VLAN 20.

By default, Port 0 of each MZ520 is in the active state, and Port 1 is in the backup state.

Set the mode of the CX320 port connected to the MZ520 to access, and specify a VLAN ID for the port. Set the mode of the CX320 interconnection port to trunk, and add all VLANs used by the MZ520. The configuration is as follows:

CX320(1):

[HUAWEI]vlan 10 
[HUAWEI-vlan10]port 10GE 2/1/1 
[HUAWEI]vlan 20 
[HUAWEI-vlan20]port 10GE 2/2/1 
[HUAWEI]interface 10GE2/1/1 
[HUAWEI-10GE2/1/1]port link-type access 
[HUAWEI]interface 10GE2/2/1 
[HUAWEI-10GE2/2/1]port link-type access 
[HUAWEI]interface 10GE2/17/1 
[HUAWEI-10GE2/17/1]port link-type trunk 
[HUAWEI-10GE2/17/1]port trunk allow-pass vlan 10 
[HUAWEI-10GE2/17/1]port trunk allow-pass vlan 20 

CX320(2):

[HUAWEI]vlan 10 
[HUAWEI-vlan10]port 10GE 3/1/1 
[HUAWEI]vlan 20 
[HUAWEI-vlan20]port 10GE 3/2/1 
[HUAWEI]interface 10GE3/1/1 
[HUAWEI-10GE3/1/1]port link-type access 
[HUAWEI]interface 10GE3/2/1 
[HUAWEI-10GE3/2/1]port link-type access 
[HUAWEI]interface 10GE2/17/1 
[HUAWEI-10GE3/17/1]port link-type trunk 
[HUAWEI-10GE3/17/1]port trunk allow-pass vlan 10 
[HUAWEI-10GE3/17/1]port trunk allow-pass vlan 20

CX320 (3) has similar configuration to CX320 (1), and CX320 (4) has similar configuration to CX320 (2).

After the configuration is complete, the MZ520 (1) can communicate with the MZ520 (3) through the active link 1-1<->1/3<->3-1, and the MZ520 (2) can communicate with the MZ520 (4) through the active link 2-1<->1/3<->4-1.

In active-backup mode, the MZ520 monitors only the status of its directly connected link. For example, MZ520 (1) monitors only links 1-1 and 1-2, not the CX320 uplinks (such as link 1/3). If link 1-1 is disconnected, MZ520 (1) switches to link 1-2 connected to its Port 1 to transmit traffic to MZ520 (3), that is, the CX320 (2) link 1-2<->2/4<->3-2 is used. The communication between MZ520 (1) and MZ520 (3) can be retained (through a failover). If link 1/3 is disconnected, MZ520 (1) cannot detect the failure, and it still uses link 1-1 to transmit traffic to MZ520 (3), which will cause communication failures.

To ensure end-to-end link protection, you need to configure the monitor link on the CX320s, and add the uplinks (interconnections between the CX320s) and downlinks (connections to the MZ520s) to the monitor link group. The configuration is as follows:

CX320(1):

[HUAWEI]monitor-link group 1 
[HUAWEI-mtlk-group1]port 10GE 2/17/1 uplink 
[HUAWEI-mtlk-group1]port 10GE 2/1/1 downlink 1 
[HUAWEI-mtlk-group1]port 10GE 2/2/1 downlink 2 

CX320(2):

[HUAWEI]monitor-link group 1 
[HUAWEI-mtlk-group1]port 10GE 3/17/1 uplink 
[HUAWEI-mtlk-group1]port 10GE 3/1/1 downlink 1 
[HUAWEI-mtlk-group1]port 10GE 3/2/1 downlink 2

CX320 (3) has similar configuration to CX320 (1), and CX320 (4) has similar configuration to CX320 (2).

After the monitor link is configured, if link 1/3 is disconnected, CX320 (1) shuts down Port 10GE2/1/1 connected to MZ520 (1), and MZ520 (1) switches to Port 1 for transmitting traffic to MZ520 (3) over the CX320 (2) channel. Similarly, CX320 (1) shuts down Port 10GE2/2/1 connected to MZ520 (2), and MZ520 (2) also switches to Port 1 for transmitting traffic to MZ520 (4).

Set the mode of the CX320 port connected to the MZ520 to access, and specify a VLAN ID for the port. Set the mode of the CX320 interconnection port to trunk, and add all VLANs used by the MZ520. The configuration is as follows:

CX320(1):

[HUAWEI]vlan 10 
[HUAWEI-vlan10]port 10GE 2/1/1 
[HUAWEI]vlan 20 
[HUAWEI-vlan20]port 10GE 2/2/1 
[HUAWEI]interface 10GE2/1/1 
[HUAWEI-10GE2/1/1]port link-type access 
[HUAWEI]interface 10GE2/2/1 
[HUAWEI-10GE2/2/1]port link-type access 
[HUAWEI]interface 10GE2/17/1 
[HUAWEI-10GE2/17/1]port link-type trunk 
[HUAWEI-10GE2/17/1]port trunk allow-pass vlan 10 
[HUAWEI-10GE2/17/1]port trunk allow-pass vlan 20 

CX320(2):

[HUAWEI]vlan 10 
[HUAWEI-vlan10]port 10GE 3/1/1 
[HUAWEI]vlan 20 
[HUAWEI-vlan20]port 10GE 3/2/1 
[HUAWEI]interface 10GE3/1/1 
[HUAWEI-10GE3/1/1]port link-type access 
[HUAWEI]interface 10GE3/2/1 
[HUAWEI-10GE3/2/1]port link-type access 
[HUAWEI]interface 10GE2/17/1 
[HUAWEI-10GE3/17/1]port link-type trunk 
[HUAWEI-10GE3/17/1]port trunk allow-pass vlan 10 
[HUAWEI-10GE3/17/1]port trunk allow-pass vlan 20

CX320 (3) has similar configuration to CX320 (1), and CX320 (4) has similar configuration to CX320 (2).

After the configuration, MZ520 (1) can communicate with MZ520 (3), and traffic is transmitted through the primary channel: 1-1<->1/3<->3-1; MZ520 (2) can communicate with MZ520 (4), and traffic is transmitted through the primary channel: 2-1<->1/3<->4-1.

If link 1-1 is disconnected, MZ520 (1) switches to link 1-4 connected to its Port 1 to transmit traffic to MZ520 (3), that is, the CX320 (2) link 1-4<->2/4<->3-4 is used. The communication between MZ520 (1) and MZ520 (3) can be retained (failover).