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Troubleshooting Guide

CloudEngine 16800, 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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Can I Directly Connect 10GE Interfaces Converted from 40GE Interfaces?

Can I Directly Connect 10GE Interfaces Converted from 40GE Interfaces?

If you run the port split command to configure two 40GE interfaces at both ends of a link into 10GE interfaces respectively, you can use a flange to connect some converted 10GE interfaces and add the interfaces into an Eth-Trunk to increase the link bandwidth. The other converted 10GE interfaces that are not connected through the flange can be used for other purposes.

For example, split a 40GE interface on a CE7850EI into four 10GE interfaces, and add two converted 10GE interfaces into an Eth-Trunk to provide a bandwidth of 20 Gbit/s.

Figure 22-102 Connecting converted 10GE interfaces through a flange

1. Configure the interface split mode. (Only the CE8850-64CQ-EI, CE7850EI, and CE7855EI support this step.)

<HUAWEI> system-view
[~HUAWEI] port split mode mode2 slot 1  
Warning: This operation may cause the split configurations on the board to be lost. This mode will take effect after board is reset.
 Continue? [Y/N]: y
[*HUAWEI] commit
[~HUAWEI] quit
<HUAWEI> save
<HUAWEI> reset slot 1  

2. Configure interface split.

<HUAWEI> system-view
[~HUAWEI] port split dimension interface 40ge 1/0/1 split-type 4*10GE  
Warning: This operation will cause all the other configurations on the port to be lost, and the configuration will take effect after 
the board is reset. Continue? [Y/N]: y 
[*HUAWEI] commit
[~HUAWEI] quit
<HUAWEI> save
<HUAWEI> reset slot 1  

For device models that support dynamic interface split, see Configuration - Interface Management Configuration Guide - Ethernet Interface Configuration - Configuring Attributes for an Optical Interface - Configuring Interface Split.

3. Create an Eth-Trunk.

<HUAWEI> system-view
[~HUAWEI] interface eth-trunk 2  
[*HUAWEI-Eth-Trunk2] trunkport 40ge 1/0/1:1 to 1/0/1:2   
[*HUAWEI-Eth-Trunk2] commit  
Updated: 2020-01-07

Document ID: EDOC1000060766

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