Huawei switch have redundancy network feature?

Created: Jul 8, 2019 02:22:19Latest reply: Jul 9, 2019 06:21:59 166 6 0 0
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I will like to ask Huawei switch have redundancy network feature?

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jason_hu
Admin Created Jul 8, 2019 02:27:19 Helpful(2) Helpful(2)

Hi,user_3423639
In the backbone network device connection, the connection of a single link is easy to implement, but a simple fault will cause the network to be interrupted. Therefore, in the process of actual network formation, in order to maintain the stability of the network, it is composed of multiple switches. In the network environment, some backup connections are usually used to improve the robustness and stability of the network.
The backup connection here is also called backup link or redundant link. The switches between the backup links are often connected to each other to form a loop, and the loop can achieve redundancy to some extent.
The redundant backup of the link can bring robustness, stability, and reliability to the network. However, the backup link also causes loops in the network. The loop problem is the most serious problem faced by the backup link. The loop between them will cause new network problems to occur:
Broadcast storm
Multi-frame copy
Unstable address table
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All Answers
jason_hu
jason_hu Admin Created Jul 8, 2019 02:27:19 Helpful(2) Helpful(2)

Hi,user_3423639
In the backbone network device connection, the connection of a single link is easy to implement, but a simple fault will cause the network to be interrupted. Therefore, in the process of actual network formation, in order to maintain the stability of the network, it is composed of multiple switches. In the network environment, some backup connections are usually used to improve the robustness and stability of the network.
The backup connection here is also called backup link or redundant link. The switches between the backup links are often connected to each other to form a loop, and the loop can achieve redundancy to some extent.
The redundant backup of the link can bring robustness, stability, and reliability to the network. However, the backup link also causes loops in the network. The loop problem is the most serious problem faced by the backup link. The loop between them will cause new network problems to occur:
Broadcast storm
Multi-frame copy
Unstable address table
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ster
ster Created Jul 8, 2019 02:29:41 Helpful(0) Helpful(0)

Hi,Is there any good solution?
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jason_hu
jason_hu Admin Created Jul 8, 2019 02:32:31 Helpful(0) Helpful(0)

Solving network redundancy problems using spanning tree protocol
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Jepoy2
Jepoy2 Created Jul 8, 2019 02:40:05 Helpful(0) Helpful(0)

Yes brother!
Redundancy can be achieve through multiple approach.
Hardware and Software redundancy.

Redundant power supply
Stacking
Multiple links ( LACP )

VRRP
SVF
N+1 redundancy (Depends on the model )

Cheers!
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WheatGrass
WheatGrass Created Jul 8, 2019 03:33:09 Helpful(0) Helpful(0)

How to configure DHCP relay redundancy on S series switches?


To configure DHCP relay redundancy on an S series switch functioning as a DHCP relay agent, you can run the dhcp relay server-ip ip-address command for multiple times to configure multiple DHCP server addresses for the DHCP relay agent.
When a DHCP client needs to send a DHCP Discover message to a DHCP server on a different network segment through a DHCP relay agent, you must configure the DHCP server address on the DHCP relay agent.
When a DHCP relay agent forwards a DHCP Discover message, it does not check whether the DHCP server status is Down. If multiple DHCP server addresses are configured on an interface, multiple DHCP servers respond with DHCP Offer messages to the DHCP client. However, the DHCP client uses the first received DHCP Offer message. As a result, IP addresses in the IP address pool on the first DHCP server are insufficient, but available IP addresses in the IP address pools on the other DHCP servers are not allocated. To make each DHCP server allocate the same number of IP addresses, a DHCP relay agent changes the forwarding order each time it forwards a DHCP Discover message, so that load balancing is implemented among DHCP servers. A DHCP relay agent forwards a DHCP Discover message as follows:
- The DHCP relay agent forwards the message to all DHCP servers by default, and changes the forwarding order each time it forwards a DHCP Discover message.
- You can configure the ip relay address cycle command to reduce the number of packets received by a DHCP server and lessen the load of a DHCP server. After this command is configured, the DHCP relay agent forwards a received DHCP Discover message to one DHCP server at a time, and forwards the DHCP Discover message to a different DHCP server each time it receives the message.
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Pogo
Pogo Created Jul 9, 2019 06:21:59 Helpful(0) Helpful(0)

For sure Huawei switches has the possibility to get the network redundant.
As mentioned above, there are several ways to get a network redundant.

From the power side, switches have 1+1 redundant powersupplies, so you can assure powerinterruptions in that way that you connect one power to an UPS system and the second one to a completely splittet powersocket.

On the networking side you can choose how much money you are able to spend. Normally you create the Core fully redundant in that way 2 switches and +2 switches interconnected to each other.
1a to 1b
2a to 2b
1a to 2b
1b to 2a

And it dependy on how your infrastructure looks like normally you connect the servercluster with your important systems interconnected on 2 switches on 2 sites.
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Solution%20Architect%20%40%20ALSO%20Austria%20-%20An%20value%20add%20distributor%20located%20near%20Vienna

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