Web Management Guide-R02

Table Of Contents
Chapter 13
| Basic Administration Protocols
Ethernet Ring Protection Switching
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Figure 314: Configuring ERPS VLAN Groups
ERPS Ring
Configuration
Use the Administration > ERPS (Configure Ring) pages to configure a physical ERPS
ring.
Command Usage
The switch can support ERPS rings up to half the number of physical ports on
the switch.
Each node must be connected to two neighbors on the ring. For convenience,
the ports connected are referred to as east and west ports. Alternatively, the
closest neighbor to the east should be the next node in the ring in a clockwise
direction, and the closest neighbor to the west should be the next node in the
ring in a counter-clockwise direction.
Note that a ring port cannot be configured as a member of a spanning tree, a
dynamic trunk, or a static trunk.
If a port channel (static trunk) is specified as a ring port, it can not be destroyed
before it is removed from the ring configuration. A static trunk will be treated as
a signal fault, if it contains no member ports or all of its member ports are in
signal fault. If a static trunk is configured as a ring port prior to assigning any
member ports, spanning tree will be disabled for the first member port
assigned to the static trunk.
VLANs that are on the exclusion list are not protected by the ERPS ring. Any
VLAN not listed on either the inclusion or exclusion list will be blocked on ring
ports.
Traffic from control VLANs, inclusion VLANs, and exclusion VLANs of an ERPS
ring will be forwarded by non-ERPS ring ports.
Parameters
These parameters are displayed:
Ring Name – Name of the VLAN group. (Range: 1-12 characters).
West – The port that connects to the next ring node to the west.
East – The port that connects to the next ring node to the east.