Link Redundancy on S5720

Latest reply: Aug 13, 2018 14:07:41 385 2 0 0
Hi team,


I´m working on a network topology that will have ring topology using OSPF for Routing Protocol. We are using Huawei S5720 L3 Switches

We are going to have two redundant path:

1.- Microwaves, connected to GigabitEther 0/0/1 and 0/0/2 on each switch
2.- Fiber Optic, connected to XGigabitEthernet 0/0/1 and 0/0/2 on each switch

The primary link will be #1 (Microwaves)
The secondary link (or back up) will be #2 (Fiber Optic)

What we want to do is to have all the traffic on both GBE 0/0/1 and 0/0/2, and if it happens that one of them goes down, the F.O 0/0/1 or 0/0/2 goes up and start moving traffic.

We were trying to set up priorities using STP, but traffic flows on all interfaces, it seems we can´t control or set up which interfaces should be like the master one and which ones should be the back up.

Any ideas?

Regards,

Julian
  • x
  • convention:

Argentym Created Aug 13, 2018 00:12:55 Helpful(1) Helpful(1)

Hello Julianmrios,

Did you try to manipulate ospf cost on your interfaces?
By default cost is the same so there will be loadbalancing.
OSPF cost calculation uses bandwidth-reference which by default equals 100 Mbs this means that interfaces of 100Mbs, 1000Mbs and 10000Mbs will have cost of 1.

The following commands will do the trick for you:
<HUAWEI> system-view
[HUAWEI] ospf 1
[HUAWEI-ospf-1] bandwidth-reference 10000

<Huawei> system-view
[Huawei] interface Xgigabitethernet 1/0/0
[Huawei-XGigabitEthernet1/0/0] ospf cost 100
This post was last edited by Argentym at 2018-08-13 05:39.
  • x
  • convention:

Aasim Created Aug 13, 2018 14:07:41 Helpful(0) Helpful(0)

Hi,
You may also set the cost statically on each interface or manipulate the delay as it is not advisable to change the bandwidth which will affect other routing protocols if any. keeping in mind that ospf support ECMP.
  • x
  • convention:

Aasim H. Abdulhay
Sr. Datacom Engineer
HCIE (R&S)# 3263

(Mobile): +965 5021051

Reply

Reply
You need to log in to reply to the post Login | Register

Notice: To protect the legitimate rights and interests of you, the community, and third parties, do not release content that may bring legal risks to all parties, including but are not limited to the following:
  • Politically sensitive content
  • Content concerning pornography, gambling, and drug abuse
  • Content that may disclose or infringe upon others ' commercial secrets, intellectual properties, including trade marks, copyrights, and patents, and personal privacy
Do not share your account and password with others. All operations performed using your account will be regarded as your own actions and all consequences arising therefrom will be borne by you. For details, see " Privacy."
If the attachment button is not available, update the Adobe Flash Player to the latest version!

Login and enjoy all the member benefits

Login
Fast reply Scroll to top