Port; Setting Tvxlowerbound - 3Com LANPLEX 6000 User Manual

Setting
tvxLowerBound
Top-Level Menu
system
display
station
ethernet
tvxLowerBound
path
fddi
tmaxLowerBound
mac
tokenring
maxTreq

port

bridge
backplane
ip
snmp
analyzer
script
logout
The tvxLowerBound attribute specifies the minimum time value of fddiMAC
TvxValue that will be used by any MAC that is configured onto this path. A
MAC uses its valid transmission timer (TVX) to detect and recover from
certain ring errors. If a valid frame has not passed through a MAC during the
time indicated by fddiMACTvxValue, the MAC reinitializes the ring.
By adjusting the tvxLowerBound value, you specify how quickly the ring
recovers from an error. The lower you set this value, the faster the network
reacts to problems, but the ring may be reinitialized when there is no
problem. The higher you set this value, the less chance of frequent
reinitializations, but the network will take longer to recover from errors.
To set tvxLowerBound:
1 From the top level of the Administration Console, enter:
fddi path tvxLowerBound
You are prompted for a slot related to the FDDI station.
2 Enter the slot(s).
You are prompted for a station, path, and value.
3 Enter the station.
If you are in multi-station mode, the stations available for you to choose are
those for which you have assigned MACs and ports.
4 Enter the path (
p
In single station mode, the primary, secondary, and local paths are available
for selection. In multi-station mode, the primary and secondary paths are
available for stations related only to the LMM+ (the secondary path is local
to the LMM+) and the primary path is available for all stations related to the
FCM, EFSM, and ESM.
5 Enter the new minimum time value.
The default is 2500 micro-seconds (us).
See the following example:
Select station [1]:
Select path(s) (p,s|all) [p]:
Station 1 Primary - Enter new value [2500]:
= primary, = secondary,
s
Administering FDDI Paths
= local).
l
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