User's Manual

Table Of Contents
273
Users Manual of CS-6306R
26.2.2 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.
EAPS is well compatible with STP, but the port under the control of EAPS is not subject to STP.
The ring protection protocol supports a switch to configure multiple ring networks.
Configuring ring control VLAN will lead to the automatic establishment of corresponding system VLAN.
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.
By default, Pre-Forward-Time of the transit node is triple longer than Hello-time of the master node so that
it is ensured that the master node can detect the recovery of the ring network before the transit port enters
the pre-forwarding state. If Hello-time configured on the master node is longer than Fre-Forward-Time of
the transit node, loopback is easily generated and broadcast storm is then triggered.
The physical interface, the fast-Ethernet interface, the gigabit-Ethernet interface and the aggregation
interface can all be set to be the ring's interfaces. If link aggregation, 802.1X or port security has been
already configured on a physical interface, the physical interface cannot be set to be a ring’s interface any
more.
The versions of switch software prior to version 2.0.1L and the versions of hi-end
switch software prior to version 4.0.0M do not support the configuration of the
converged port.
26.2.3 MEAPS Configuration Tasks
Configuring the Master Node
Configuring the Transit Node
Configuring the Ring Port
Browsing the State of the Ring Protection Protocol
26.2.4 Fast Ethernet Ring Protection Configuration
26.2.4.1 Configuring the Master Node
Configure a switch to be the master node of a ring network according to the following steps:
Command Purpose
Switch#config Enters the switch configuration mode.
Switch_config#ether-ring id
Sets a node and enters the node configuration mode.
id: Instance ID