Cisco Cisco Aironet 340 Ethernet Bridges Guia Do Utilizador
8 - 14 Aironet 340 Series Bridge
If the timeout period is set too low, the spanning tree infrastructure may
reconfigure itself unnecessarily and messages can be lost due to heavy
traffic on the infrastructure. However, if set too high, the infrastructure
will take longer than necessary to recover from failed ports or bridges.
reconfigure itself unnecessarily and messages can be lost due to heavy
traffic 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.
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 bridge’s
local LAN port and for the ports of any active connected repeaters.
When the port option is selected, the Configuration STP Port Menu
appears.
local LAN port and for the ports of any active connected repeaters.
When the port option is selected, the Configuration 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 “On”, which allows all root bridge LAN ports to be ini-
tially placed in the listening state. If the option is turned “Off”, the LAN
ports are placed in the forwarding state.
default setting is “On”, which allows all root bridge LAN ports to be ini-
tially placed in the listening state. If the option is turned “Off”, the LAN
ports are placed in the forwarding state.
If the port’s LAN will always be connected to the bridge and loops will
never occur, turn the protocol “Off” to prevent the port from transmit-
ting configuration messages on every timeout period.
never occur, turn the protocol “Off” to prevent the port from transmit-
ting configuration 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