Hello, everyone!
Today I will show you an example of type B single-homing protection. There are four types of protection for downstream – type B single-homing protection, type B dual-homing protection, type C single-homing protection, and type C dual-homing protection. I wrote articles about these themes. Now, I want to show you a complete example of type B single-homing protection. There are four mandatory commands. In the end, I show you the situation with a problem with active link and work of this protection.
Log in as: root
Keyboard-interactive authentication prompts from the server:
| User Authentication
| User password:
End of keyboard-interactive prompts from the server
Huawei Integrated Access Software (MA5800).
Copyright(C) Huawei Technologies Co., Ltd. 2002-2019. All rights reserved.
TEST>enable
TEST#config
TEST(config)#protect-group 50 protect-target gpon-uni-port workmode timedelay
TEST(protect-group-50)#protect-group member port 0/2/1 role work
TEST(protect-group-50)#protect-group member port 0/2/2 role protect
TEST(protect-group-50)#protect-group enable
TEST(protect-group-50)#display protect-group 50
{ <cr>||<K> }:
Command:
display protect-group 50
-----------------------------------------------------------------------
Group ID : 50
Protect Target : Port of GPON uni
Work Mode : timedelay
Description :
Admin State : enable
Operation : none
Reversion : disable
Reversion Time(s): 720
Anti-jitter Time(s) : 720
PPPoE Single MAC : Unbind
Standard type B : no
Standby port suppress flapping: disable
Standby port signal detecting based on RSSI : disable
Standby port signal detecting interval(min) : -
Standby port signal detecting threshold(dBm) : -
-----------------------------------------------------------------------
Member Role Operation State PeerMember
-----------------------------------------------------------------------
0/2/1 work auto switch src standby 0/2/2
0/2/2 protect auto switch dst active 0/2/1
-----------------------------------------------------------------------
Standby Member Status : ready
Because we have a problem with the active link, the system switches from active to standby link. We can see it on the last command. It is a very simple solution, in the ODN (Optical Distribution Network) we have to use optical splitters with two input ports (for active PON port and standby PON port).
Thank you!
