Cabletron Systems SmartStack STS16-20FRM, Инструкция по установке и эксплуатации

Страница: 198 / 260

184
SmartStack STS16-20RM/STS16-20FRM Token Ring Switches, P/N: 9032957-01 Monitoring the Network from the Console Statistics Menu
Max Message Age
Time at which the configuration message used by the spanning tree algorithm
should be discarded. This time is advertised by the root and used by all devices and
switches in the active topology of the spanning tree network.
Forward Delay
Time the root waits between transitions from listening to learning, and from
learning to forwarding. This time is advertised by the root and used by all devices
and switches in the active topology of the spanning tree network.
CRF
VLAN ID of a CRFs belonging to this BRF.
PId
Port ID that is used to determine the role of the port in the spanning tree. The port
ID is expressed in the form
port priority.port number. When using the IEEE
Spanning Tree, priority is configured from the
Spanning Tree Configuration
screen and port number is the bridge an internal number for the CRF.
When using the IBM Spanning Tree, the port ID is constructed from ring number.
bridge number.
PCst (Port Cost)
Cost associated with each port. Lower numbers are generally assigned to ports
attached to faster media (such as FDX or CrossLinks), and higher numbers are
generally assigned to ports attached to slower media.
PSts (Port Status)
Current status of this CRF within the spanning tree. Possible values are:
•
DIS (Disabled)
•
BLK (Blocked) A more effective way to the root bridge exists.
•
LSN
(Listening) Removing old address entries.
•
LRN (Learning) Learning new address entries.
•
FWD (Forwarding) This port is the most effective way to the root.
DCst (Designated Cost)
Cost for a packet to travel from this CRF to the root in the current spanning-tree
configuration. The slower the media, the higher the cost.
Dsg SwId/BrId (Designated Switch Id/Bridge Id)
Priority and ID of the device through which this port has determined it must