Nortel BES50FE-12T PWR, User Manual

Page: 108 / 166

108 BES50 administration
Item Description
is attached to this segment, the port with the smaller ID
forwards packets and the other port is discarding. All ports
are discarding when the switch is booted, and then some of
them change state to learning, and then to forwarding.
Forward Transitions The number of times this port has changed from the Learning
state to the Forwarding state.
Designated Cost The cost for a packet to travel from this port to the root in the
current Spanning Tree configuration. The slower the media, the
higher the cost.
Designated Bridge The bridge priority and MAC address of the device through which
this port must communicate to reach the root of the Spanning
Tree.
Designated Port The port priority and number of the port on the designated
bridging device through which this switch must communicate with
the root of the Spanning Tree.
Oper Path Cost The operational path cost of the LAN segment attached to this
interface. This parameter is determined by manual configuration
or by autodetection, as described for Admin Path Cost in
"Configuring STA settings for interfaces" (page 67) .
Oper Link Type The operational point-to-point status of the LAN segment attached
to this interface. This parameter is determined by manual
configuration or by autodetection, as described for Admin Link
Type in
"Configuring STA settings for interfaces" (page 67) .
Oper Edge Port This parameter is initialized to the setting for Admin Edge Port
in
"Configuring STA settings for interfaces" (page 67) (true or
false), but it is set to false if a Bridge Protocol Data Unit (BPDU) is
received, indicating that another bridge is attached to this port.
Port Role Roles are assigned as follows:
• The port is part of the active topology connecting the bridge
to the root bridge (root port).
• The port is connecting a LAN through the bridge to the root
bridge (designated port).
• The port is the MSTI regional root (master port).
• The port is an alternate or backup port that may provide
connectivity if other bridges, bridge ports, or LANs fail or are
removed.
The role is set to disabled (disabled port) if a port has no role
within the spanning tree.
Trunk Indicates if a port is a member of a trunk.
SMB
Using the Nortel Business Ethernet Switch 50 Series
NN47924-301 01.01 Standard
1.00 October 2006
Copyright © 2006, Nortel Networks Nortel Networks Confidential
.