TRMM V3.0 allows you to enable/disable the beacon recovery function using the
following command:
SET DEVICE BEACON_RECOVERY {enable|disable}
Note that this feature must be enabled during normal operation; however, you
may disable this feature as a trouble shooting tool, to prevent the ring from
recovering before the faulty device is isolated.
TRMM V3.1 allows you to change the ″beacon timeout″ (the amount of time that
the TRMM will wait before attempting to unwrap the RI/RO ports after these
ports are wrapped due to a beacon condition) using the following TRMM
command:
SET DEVICE BEACON_TIMEOUT {number of second}
The allowed range for this command is 1 to 100 seconds.
You can display the status of the TRMM ″beacon_recovery″ and
″beacon_timeout″ using the following TRMM command:
SHOW DEVICE
An example of the output for this command is shown in Figure 92.
 
8250> show device
T01MS Token Ring Management Module (Advanced-MGT) v3.10-A pSOS+ SNMP
Name: 8250
Location:
ITSO LAB, Raleigh
For assistance contact:
Mohammad Shabani X2339
Boot EPROM Version: v3.00-A Size: 256 KBytes
Flash EPROM Version: v3.10-A Size: 1024 KBytes DRAM Size: 2048 KByte
Serial Number: 1088813 Restarts: 6 Service Date: 94/09/06
Interface IP Address Subnet Mask Primary Gateway Secondary Gat
--------- --------------- ----------- --------------- -------------
1 * 009.067.046.235 FF.FF.FF.F0 009.067.046.238* 000.000.000.
2 009.067.046.235 FF.FF.FF.F0 009.067.046.238 000.000.000.
3 009.067.046.235 FF.FF.FF.F0 009.067.046.238 000.000.000.
4 009.067.046.235 FF.FF.FF.F0 009.067.046.238 000.000.000.
5 009.067.046.235 FF.FF.FF.F0 009.067.046.238 000.000.000.
6 009.067.046.235 FF.FF.FF.F0 009.067.046.238 000.000.000.
7 009.067.046.235 FF.FF.FF.F0 009.067.046.238 000.000.000.
8 009.067.046.235 FF.FF.FF.F0 009.067.046.238 000.000.000.
MAC Address: 10-00-F1-0F-30-B7
Dip Configuration: DISABLED Diagnostics: ENABLED
Trap Receive: DISABLED Beacon Recovery: ENABLED
Monitor Contention: ENABLED Beacon Timeout: 10 second(s)
8250>
 
Figure 92. Show Device Command for TRMM
154 8260 Multiprotocol Intelligent Switching Hub