User Manual

260
Users Manual of XGS-6350-24X4C
Figure 10: Channel recovery
Fast Ethernet Ring Protection Configuration
27.2
27.2.1 Requisites before Configuration
Before configuring MEAPS, please read the following items carefully:
 One of important functions of the ring protection protocol is to stop the broadcast storm, so please make
sure that before the ring link is reconnected all ring nodes are configured. If the ring network is
connected in the case that the configuration is not finished, the broadcast storm may easily occur.
 Set the ring protection protocol to realize the compatibility of STP. The users are allowed to set “no
spanning-tree”, SSTP, RSTP and MSTP.
 After an instance of the ring's node is set, users are forbidden to change the basic information of the
node (excluding the time parameters) unless the current ring’s node is deleted and then reset.
 If you run show to browse the configured node and find its state is init, it shows that the node’s
configuration is unfinished and therefore the node cannot be started. In this case, you are required to
change or add basic information to complete the configuration of the node.
 The ring protection protocol supports a switch to configure multiple ring networks.
 The configuration of the control VLAN of the ring network does not automatically establish the
corresponding systematic VLAN. You need to establish the systematic VLAN manually through global
VLAN configuration command.
 The port of each ring can forward the packets from the control VLAN of the ring, while other ports, even
in the Trunk mode, cannot forward the packets from the control VLAN.
 By default, Fail-time of the master node is triple longer than Hello-time, so that packet delay is avoided
from shocking the ring protection protocol. After Hello-time is modified, Fail-time need be modified
accordingly.