How to Configure OLT 5603T type B dual-homing network protection

GongXiaochuan · Created Mar 22, 2019 04:01:47

Hi!

For the switch connection to the OLT, the L2 switch doesn't need to do the port isolatation. The L3 switch needs to do the port isolatation.

GongXiaochuan · Created Mar 22, 2019 04:01:47

Hi!

For the switch connection to the OLT, the L2 switch doesn't need to do the port isolatation. The L3 switch needs to do the port isolatation.

Peter2019 · Created Mar 22, 2019 05:48:48

Thanks for your reply. can you advise why layer2 switch not need to configure the port isolation? both OLT uplink will learn mac-addresses.
If doing the port isolation, the OLT management IP addresses need to be configured to different subnet ,
for examle, OLT 1 IP address 192.168.1.5/24, OLT 2 IP address 192.168.2.6/24, otherwise, both OLT cannot communicate with each other. Another question, if OLT management IP addresses are different, will affec****U to communicate with OLT
because need to via layer 3 routing.

Gavin.Liu · Created Mar 22, 2019 07:27:26

2 documentation ，1 is from OLT product documentation （OLT documentation will not mention）how switch configure .
another documentation is for the solution . hope you can understand .

Peter2019 · Created Mar 22, 2019 07:35:17

thanks. But the configuration are totally different, the steps also different. If need to configure port isolation on upstream core switches, then need to use different subnet for OLT management IP address.
But in the product document, both OLT can use same subnet IP addresses, does it work?

Gavin.Liu · Created Mar 22, 2019 07:50:17

the OLT procurement documentation just command for reference ， if completely solution ， please reference the solution documentation ...

2 OLT just can be communication in L3 will be can accessble , in L2 should be isolation .

GongXiaochuan · Created Mar 22, 2019 07:56:48

Posted by Peter2019 at 2019-03-22 05:48 Thanks for your reply. can you advise why layer2 switch not need to configure the port isolation? b ...

hi, you are right , both need to configure the port isolate , otherwise the MAC address will be flapping.

for configure with different subnet , from the document not mention need to do that .

Peter2019 · Created Mar 22, 2019 08:04:41

If configure port isolation on core switches, then OLT management IP should be different, and OLT 1 communicate with OLT 2 via layer 3 routing. If OLT 1 and OLT 2 configure IP in same subnet, then how to communicate with each other when port isolation configured. Please advise, thanks.

Peter2019 · Created Mar 22, 2019 08:06:57

you can see the example configure from the link below.
https://support.huawei.com/enterprise/en/doc/EDOC1100016413?section=j014
IP address

192.168.68.5/24 (OLT A)

192.168.78.8/24 (OLT B)
different subnet, so communicate via layer 3 routing.

How to Configure OLT 5603T type B dual-homing network protection

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