User`s guide

8 - 14 Ethernet or Token Ring Bridge
If the timout period is set too low, the spanning tree infrastructure may
reconÞgure itself unnecessarily and messages can be lost due to heavy
trafÞc on the infrastructure. However, if set too high, the infrastructure
will take longer than necessary to recover from failed ports or Bridges.
The upper limit on the allowed range is determined by the setting of the
forwarding delay. The timeout period must be less than twice the for-
warding delay, minus 1 second. The timeout values range between 6 and
29 with a default value of 20.
Setting Port Parameters (Port)
The port option allows you to set the port parameters for a root BridgeÕs
local LAN port and for the ports of any active connected repeaters.
When the port option is selected, the ConÞguration STP Port Menu
appears.
Enabling the STP Protocol (Port)
The port option is used to enable the STP protocol on the local port. The
default setting is ÒOnÓ, which allows all root Bridge LAN ports to be
initially placed in the listening state. If the option is turned ÒOffÓ, the
LAN ports are placed in the forwarding state.
If the portÕs LAN will always be connected to the Bridge and loops will
never occur, turn the protocol ÒOffÓ to prevent the port from transmit-
ting conÞguration messages on every timeout period.
Configuration Stp Port Menu
Option Value Description
1 - Port [ on ] - Protocol enabled for ethernet port
2 - Priority [ 80 ] - Local ethernet port priority
3 - Cost [ 100 ] - Local ethernet port cost
4 - Rport - Protocol enabled for remote port
5 - Rpriority - Remote port priority
6 - Rcost - Remote port cost