ZyXEL Communications OLT2406, User Manual

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Chapter 98 Port Protection Switching
OLT2406 User’s Guide
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98
Port Protection Switching
98.1 Overview
Port protection switching creates a protection path for traffic in case the working path fails. This chapter
lists commands that allow you to set up port protection on pairs of uplink ports.
98.2 Uplink Port Protection Switching
The MSC uplink port protection switching feature creates a working path (active port) and backup path
(backup port) for uplink traffic.
Use MSC protection groups to have active and backup uplink ports. You put 2 MSC uplink ports into a
protection group. There are 3 groups for the MSC’s 6 uplink ports. Each group has an active port and a
backup port. Normally, the uplink traffic uses the working path (traffic is sent out the active port). When
the active port is down, the OLT sends out packets using the backup path (traffic is sent out the backup
port). You assign downlink (Gigabit Ethernet or PON) access ports for each protection group. Assign
specific Gigabit Ethernet or PON ports to a protection group to group services or users and separate
them from the services and users in other protection groups.
Figure 291 Uplink Port Protection Switching
You can also use a command to change the current active port.
Working path
Backup path