In rare cases an N-Ring can have a “Partial Fault”. An example of this is to have a break in just one fiber in a duplex channel fiber pair. The screenshot below shows N-Ring Manager Status when a „Higher‟ N-Ring Port (A2 or E2) is not receiving self health frames all the way around the N-Ring, though the other (low A1/E1) N-Ring port is:
N-Ring Partial Fault (A2 is not receiving self health from A1)
N-Ring Status View
Switch is an N-Ring Manager, using N-Ring Aging Time = 20 seconds
Refresh every 
6
0 Active Members Detected In Current N-Ring (0 reporting)
Switch No | MAC Address | IP Address | Subnet Mask | Name | Ports |
RM | 00:07:af:00:b1:40 192.168.1.135 255.255.255.0 N-TRON Switch | A2 |
| | A1 |
The screenshot below shows N-Ring Manager Status when a „Lower‟ N-Ring Port (A1 or E1) is not receiving self health frames all the way around the N-Ring, though the other (high A2/E2) N-Ring port is:
N-Ring Partial Fault (A1 is not receiving self health from A2)
N-Ring Status View
Switch is an N-Ring Manager, using N-Ring Aging Time = 20 seconds
Refresh every 
6
0 Active Members Detected In Current N-Ring (0 reporting)
| Switch No | MAC Address | IP Address | Subnet Mask | Name | Ports |
| RM | 00:07:af:00:b1:40 | 192.168.1.135 | 255.255.255.0 | N-TRON Switch | A2 |
|
|
| A1 |
|
| | | | | |
| | | | | | |
(Revised 2010-7-2) | page 64 of 145 |
