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What Is Ethernet Link Aggregation

Latest reply: Aug 25, 2019 20:56:56 2387 16 13 0 0

What Is Ethernet Link Aggregation

As broadband services are widely used, carriers require higher bandwidth and reliability for Ethernet links.

Hardware upgrades can increase Ethernet link bandwidth but at high costs. In addition, hardware upgrades are less flexible than software upgrades. Ethernet link aggregation addresses these issues and supports the following functions:
  • The maximum bandwidth of a link aggregation group (LAG) is equal to the total bandwidths of all links in a LAG. Hardware upgrades are not required and costs are curtailed.
  • Traffic in a LAG is distributed to member links using the load sharing algorithm, implementing load sharing and improving link usage.
  • Member links in a LAG dynamically back up each other. When one link is interrupted, a bakckup link immediately takes over.
  • Link aggregation functions between interconnected devices only and is independent of the network topology.

A logical link aggregating several physical links is called a LAG.

imgDownload?uuid=2c785b8b109d47feba1c445 NOTE:
Link aggregation is also called port aggregation because each link corresponds to two specific ports on an Ethernet network.

As shown in Figure 1-1, two devices are interconnected through several pairs of Ethernet ports. These ports are bound into a logical link, called a LAG.

Figure 1-1  Link aggregation 
imgDownload?uuid=07c2ee431faf44fd850ca4b

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The MA5600T/MA5603T/MA5608T is configured with only one control board, the SCUN control board and the GIU board are configured in an inter-board LAG, packets are distributed to the LAG member ports according to the source MAC address, and the working mode is LACP static aggregation. To perform these configurations, run the following commands:
huawei(config)#link-aggregation 0/9 0-3 0/19 0-1 ingress workmode lacp-static

huawei(config)#display link-aggregation all
-------------------------------------------------------------------------
Master port Link aggregation mode Port NUM Work mode Max link number
-------------------------------------------------------------------------
0/9 /0 ingress 6 lacp-static -
-------------------------------------------------------------------------
Total: 1 link aggregation(s)

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:)
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  • Reduces costs for power supply cabling and facilitates power module installation.
  • Works with Uninterruptible Power Supply (UPS) to provide backup power supply for IP cameras, video servers, and IP phones.
This post was last edited by No.9527 at 2018-10-31 06:35.
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I have encountered this question about you. I have checked a lot of information, but I still have not answered this question clearly.
below I think is very useful and good to explain the issue.
  • The maximum bandwidth of a link aggregation group (LAG) is equal to the total bandwidths of all links in a LAG. Hardware upgrades are not required and costs are curtailed.
  • Traffic in a LAG is distributed to member links using the load sharing algorithm, implementing load sharing and improving link usage.
  • Member links in a LAG dynamically back up each other. When one link is interrupted, a bakckup link immediately takes over.
  • Link aggregation functions between interconnected devices only and is independent of the network topology.
This post was last edited by Torrent at 2018-10-22 05:55.
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I don’t know much about the transmission access part, but your article is very clear about Hardware upgrades can increase Ethernet link bandwidth but at high costs. In addition, hardware upgrades are less flexible than software upgrades. Ethernet link aggregation addresses these issues and supports the following functions:, so I can understand it, thank you for sharing. This post was last edited by Mark.hu at 2018-10-31 07:15.
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it is very good for Hardware upgrades can increase Ethernet link bandwidth but at high costs. In addition, hardware upgrades are less flexible than software upgrades. the service will not be interrupted? This post was last edited by yjhd at 2018-10-31 09:21.
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What a professional post it is!:)
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Thanks for your sharing .The MA5600T/MA5603T/MA5608T is configured with only one control board, the SCUN control board and the GIU board are configured in an inter-board LAG, packets are distributed to the LAG member ports according to the source MAC address, and the working mode is LACP static aggregation.
View more
  • x
  • convention:

  • Reduces costs for power supply cabling and facilitates power module installation.
  • Works with Uninterruptible Power Supply (UPS) to provide backup power supply for IP cameras, video servers, and IP phones.
This post was last edited by No.9527 at 2018-10-31 06:35.
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