Juniper JUNOS OS 10.4 Manual page 186

Junos OS 12.1 MX Series 3D Universal Edge Routers Solutions Guide
Verification
Purpose
Action
Meaning
Purpose
Action
166
To confirm that the ERP configuration for multiple ring instances is operating, perform
these tasks:
Verifying the Ethernet Protection Ring on CS1 on page 166
Verifying the Data Channel CS1 on page 166
Verifying the VLANs on CS1 on page 167
Verifying the Ethernet Protection Ring on CS2 on page 167
Verifying the Data Channel CS2 on page 168
Verifying the VLANs on CS2 on page 168
Verifying the Ethernet Protection Ring on AS1 on page 169
Verifying the Data Channels on AS1 on page 169
Verifying the VLANs on AS1 on page 170
Verifying the Ethernet Protection Ring on CS1
Verify that ERP is enabled on CS1.
Show the status of the ring automatic protection switching (R-APS) messages to
determine if there is a ring failure:
user@cs1>show protection-group ethernet-ring aps
Ethernet Ring Name Request/state
Node ID
ring-1 NR
ring-2 NR
13:22:af:31:fc:00
The output displayed shows that protection groups
of NR , meaning there is no request for APS on the ring. If a
it indicates there is a signal failure on the ring. The output also shows that the ring
protection link is not blocked. The
addresses will be flushed when the ring nodes receive this message first time. A value of
would indicate MAC address flushing is not needed. The
Yes
displays yes , indicating that this node is an R-APS originator.
Verifying the Data Channel CS1
Verify the forwarding state of the data channel.
List the interfaces acting as the control channels and their respective data channels
(represented by the Spanning Tree Protocol (STP) index number):
user@cs1>show protection-group ethernet-ring data-channel
Ethernet ring data channel parameters for protection group ring-1
Interface STP index
No Flush Ring Protection
Link Blocked
No Yes
No Yes
ring-1
field displays
No Flush
Forward State
Originator
Yes
No
and have a
ring-2 Request/state
Request/state of SF is displayed,
, indicating that MAC
No
field for
Originator ring-1
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