Some thoughts on link aggregation of three-way switch in China

two-layer static aggregation configuration example1.Networking Requirements

· Device A and device B are connected via the respective two-layer Ethernet interface GIGABITETHERNET1/0/1~GIGABITETHERNET1/0/3 .

· in the the two-layer static link aggregation group is configured on devicea and device B respectively, and the VLAN between the devices and VLAN is interconnected respectively.

2.Group Network Diagram

Figure 1-5 Two-layer static aggregation configuration Network Diagram

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3.Configuration Steps

(1) Configuring Device A

# Create a VLANand add Port GIGABITETHERNET1/0/4 to the VLAN .

<DeviceA> System-view

[Devicea] VLAN 10

[Devicea-vlan10] Port GIGABITETHERNET1/0/4

[Devicea-vlan10] Quit

# Create a VLAN, and Add the port GIGABITETHERNET1/0/5 to the VLAN .

[Devicea] VLAN 20

[Devicea-vlan20] Port GIGABITETHERNET1/0/5

[Devicea-vlan20] Quit

# Create two-tier aggregation interface 1.

[Devicea] Interface bridge-aggregation 1

[Devicea-bridge-aggregation1] Quit

# Add ports gigabitethernet1/0/1 through GIGABITETHERNET1/0/3 to aggregation group 1, respectively .

[Devicea] Interface gigabitethernet 1/0/1

[DEVICEA-GIGABITETHERNET1/0/1] portlink-aggregation Group 1

[DEVICEA-GIGABITETHERNET1/0/1] Quit

[Devicea] Interface GIGABITETHERNET1/0/2

[DEVICEA-GIGABITETHERNET1/0/2] portlink-aggregation Group 1

[DEVICEA-GIGABITETHERNET1/0/2] Quit

[Devicea] Interface GIGABITETHERNET1/0/3

[DEVICEA-GIGABITETHERNET1/0/3] portlink-aggregation Group 1

[DEVICEA-GIGABITETHERNET1/0/3] Quit

# Configure two Layer aggregation interface 1 for Trunk port, and allow the VLAN to pass through the packet.

[Devicea] Interface bridge-aggregation 1

[Devicea-bridge-aggregation1] Portlink-type Trunk

[Devicea-bridge-aggregation1] Porttrunk permit VLAN 10 20

[Devicea-bridge-aggregation1] Quit

(2) configuring Device B

the configuration of DEVICEB is similar to Device A, and the configuration process is slightly.

4.Verifying the configuration

# View Detailed information for all aggregation groups on Device A.

[Devicea] Display link-aggregation verbose

Loadsharing Type:shar--loadsharing,nons--non-loadsharing

Port status:s--Selected, U--unselected, I--Individual

Flags:a--Lacp_activity, B--lacp_timeout, C--Aggregation,

D--synchronization, E--collecting, F--distributing,

G--defaulted, H--Expired

Aggregate Interface:bridge-aggregation1

Aggregation mode:static

Loadsharing Type:shar

Port Status Priority Oper-key

--------------------------------------------------------------------------------

GE1/0/1 S 32768 1

GE1/0/2 S 32768 1

GE1/0/3 S 32768 1

The above information indicates that aggregation group 1 is a two-tier static aggregation group that contains three selected ports.

Two-layer dynamic aggregation configuration example1.Networking Requirements

· Device A and device B are connected via the respective two-layer Ethernet interface GIGABITETHERNET1/0/1~GIGABITETHERNET1/0/3 .

· in the the two-layer dynamic Link Aggregation group is configured on devicea and device B respectively, and the VLAN between devices and VLAN is interoperable.

2.Group Network Diagram

Figure 1-6 Two-layer dynamic aggregation configuration group Network Diagram

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3.Configuration Steps

(1) Configuring Device A

# Create a VLANand add Port GIGABITETHERNET1/0/4 to the VLAN .

<DeviceA> System-view

[Devicea] VLAN 10

[Devicea-vlan10] Port GIGABITETHERNET1/0/4

[Devicea-vlan10] Quit

# Create a VLAN, and Add the port GIGABITETHERNET1/0/5 to the VLAN .

[Devicea] VLAN 20

[Devicea-vlan20] Port GIGABITETHERNET1/0/5

[Devicea-vlan20] Quit

# Create two-tier aggregation interface 1and configure the interface for dynamic aggregation mode.

[Devicea] Interface bridge-aggregation 1

[Devicea-bridge-aggregation1] Link-aggregationmode dynamic

[Devicea-bridge-aggregation1] Quit

# Add ports gigabitethernet1/0/1 through GIGABITETHERNET1/0/3 to aggregation group 1, respectively .

[Devicea] Interface gigabitethernet 1/0/1

[DEVICEA-GIGABITETHERNET1/0/1] portlink-aggregation Group 1

[DEVICEA-GIGABITETHERNET1/0/1] Quit

[Devicea] Interface GIGABITETHERNET1/0/2

[DEVICEA-GIGABITETHERNET1/0/2] portlink-aggregation Group 1

[DEVICEA-GIGABITETHERNET1/0/2] Quit

[Devicea] Interface GIGABITETHERNET1/0/3

[DEVICEA-GIGABITETHERNET1/0/3] portlink-aggregation Group 1

[DEVICEA-GIGABITETHERNET1/0/3] Quit

# Configure two Layer aggregation interface 1 for Trunk port, and allow the VLAN to pass through the packet.

[Devicea] Interface bridge-aggregation 1

[Devicea-bridge-aggregation1] Portlink-type Trunk

[Devicea-bridge-aggregation1] Porttrunk permit VLAN 10 20

[Devicea-bridge-aggregation1] Quit

(2) configuring Device B

the configuration of DEVICEB is similar to Device A, and the configuration process is slightly.

4.Verifying the configuration

# View Detailed information for all aggregation groups on Device A.

[Devicea] Display link-aggregation verbose

Loadsharing Type:shar--loadsharing, nons--non-loadsharing

Port status:s--Selected, U--unselected, I--Individual

Flags:a--Lacp_activity, B--lacp_timeout, C--Aggregation,

D--synchronization, E--collecting, F--distributing,

G--defaulted, H--Expired

Aggregate Interface:bridge-aggregation1

Aggregation mode:dynamic

Loadsharing Type:shar

System id:0x8000, 000f-e267-6c6a

Local:

Port Status Priority Oper-key Flag

--------------------------------------------------------------------------------

GE1/0/1 S 32768 1 {acdef}

GE1/0/2 S 32768 1 {acdef}

GE1/0/3 S 32768 1 {acdef}

Remote:

Actor partnerpriority Oper-key SystemID Flag

--------------------------------------------------------------------------------

GE1/0/1 1 32768 1 0x8000, 000f-e267-57ad{acdef}

GE1/0/2 2 32768 1 0x8000, 000f-e267-57ad{acdef}

GE1/0/3 3 32768 1 0x8000, 000f-e267-57ad{acdef}

The above information indicates that aggregation group 1 is a two-tier dynamic aggregation group with three selected ports.

Summary: 1, China three switch static mode corresponding to the default mode of Huawei, third dynamic mode corresponds to the mode LACP model of Huawei. Cisco is currently only experimenting with Huawei and Cisco, Huawei is mode LACP, Cisco is mode active.

2, the three switches do link aggregation, you need to first create The aggregation interface 1, and then in port gigabitethernet1/0/1 To gigabitethernet1/0/3 add to aggregation group 1 finally Configure two-layer aggregation interface 1 trunk and 20 the message passed.

Before doing Huawei and third switch aggregation connection, there was a problem, and finally consulted a large number of data, only to find that because the configuration sequence problems caused by communication failure, PS: This problem is really not the intention!

Some thoughts on link aggregation of three-way switch in China