Cabletron Systems TRXI-42 User Manual

Page of 92
LOCAL MANAGEMENT
Page 5-17
5.3.4
The Ring Security Screen
The Ring Security screen lets you control access to your token ring 
network. Figure 5-8 shows the Ring Security screen. When you enable 
ring security, the TRXI stores the MAC address of each station on the 
token ring network in a secure database or “allowed list.” Only 
stations on the allowed list can enter the ring. The TRXI can store up 
to 250 station MAC addresses on the allowed list. The TRXI retains 
the allowed list in its battery-backed Non-Volatile Random Access 
Memory (NVRAM). If you power up or reset the TRXI, NVRAM 
retains the allowed list and automatically re-enables ring security.
Figure 5-8. Ring Security Screen
You can append the allowed list by temporarily disabling ring security, 
then re-enabling it using the Alarms Only feature. The TRXI acts as 
the Ring Security Monitor for the ring and provides security for the 
entire ring.
Note: You should enable the Ring Security feature on only one TRXI 
per token ring.
You can select two modes of ring security; Alarm Only and
Alarm/Remove. In the Alarm Only mode, new stations can enter the 
ring, but a “station added” trap/alarm notifies the Network 
Management Station (NMS) of the event.
TRXI LOCAL MANAGEMENT
Flash Image Version:  X.XX.XX 
RING SECURITY
STATION ADDRESS
00-00-00-00-00-00
Stn Edit [00-00-00-00-00-00]  [Add]                    Security Mode  [Disabled]
SAVE/EXECUTE     NEXT_SCREEN     PREVIOUS_SCREEN     RETURN