Web Management Guide-R01

Table Of Contents
Chapter 13
| Basic Administration Protocols
Ethernet Ring Protection Switching
– 478 –
Down – The interface is not linked up.
Unknown – The interface is not in a known state (includes the domain
being disabled).
Local SF – A signal fault generated on a link to the local node.
Local FS – Shows if a forced switch command was issued on this interface.
Local MS – Shows if a manual switch command was issued on this interface.
MEP – The MEP used to monitor the status on this link.
RPL – Shows if this node is connected to the RPL.
Inclusion VLAN Groups – ERPS VLAN groups configured for this instance.
Configure Details
Instance Name – Name of a configured ERPS instance. (Range: 1-12 characters)
Service Instances within each ring are based on a unique maintenance
association for the specific users, distinguished by the ring name, maintenance
level, maintenance associations name, and assigned VLAN. Up to 6 ERPS rings
can be configured on the switch.
Instance ID – ERPS ring identifier used in R-APS messages. (Range: 1-255;
Default: None)
R-APS information is carried in an R-APS PDUs. The last octet of the MAC
address is designated as the Ring ID (01-19-A7-00-00-[Ring ID]). If use of the
default MAC address is disabled for the R-APS Def MAC parameter, then the
Domain ID will be used in R-APS PDUs.
Control VLAN – A dedicated VLAN used for sending and receiving E-APS
protocol messages. (Range: 1-4094)
Configure one control VLAN for each ERPS ring. First create the VLAN to be used
as the control VLAN (see “Configuring VLAN Groups” on page 159), add the ring
ports for the east and west interface as tagged members to this VLAN (see
Adding Static Members to VLANs” on page 161), and then use this parameter
to add it to the ring.
The following restrictions are recommended to avoid creating a loop in the
network or other problems which may occur under some situations:
The Control VLAN must not be configured as a Layer 3 interface (with an IP
address), a dynamic VLAN (with GVRP enabled), nor as a private VLAN.
In addition, only ring ports may be added to the Control VLAN. No other
ports can be members of this VLAN.
Also, the ring ports of the Control VLAN must be tagged.