RESERVE Reserve the field SYSMAC MAC address of OLT system Serial number of the packet, it will be SEQUENCE automatically generated before forwarding the packet Port number, the 85 product is global port DiID number 0x0000 end mark www.fs.com...
Purpose [no] loopback-detection hello-time time Configure loopback-detection recovery-time As the network is in change, the loopback detection is a lasting process. The port forwards loopback detection packets regularly. The time interval, i.e. loopback-detection hello-time is 3 seconds in default. www.fs.com...
When the controlled action of this port is set to shut down, it is improper to regard that loopback exists on this port for a shutdown port has already not forwarded packets. There is no loopback by default. www.fs.com...
1.4 Configuration Example Figure 1.1 Loopback Detection Configurations As shown in Figure 1.1, port OLT S1 designates loopback detection of certain VLAN (1,2,3): Switch S1: Configure interface GigaEthernet0/1: switchport trunk vlan-untagged 1-3 switchport mode trunk loopback-detection enable loopback-detection control block www.fs.com...
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Global Configuration: vlan1-3 Switch S3: Configure interface GigaEthernet0/1: switchport pvid 3 If S3 has loopback and PVID of the port is 3, the packets will forward back to G5/1 of S1. S1 will block G5/1 if there is loopback. www.fs.com...
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