Nortel 8300 User Manual page 100

100 Configuring Spanning Tree Group
Field
Priority
State
EnableStp
FastStart
Configuration — VLANs, Spanning Tree, and Static Link Aggregation using Device Manager
Copyright © 2005-2007, Nortel Networks
.
Description
The value of the priority field contained in the first octet of the Port ID.
The second octet of the Port ID is defined by the value of rcStgPort
(the Port ID has only two octets).
Although port priority values range from 0–255, only the following
values are used on the Ethernet Routing Switch 8300 Series: 0, 16,
32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240. The
default value is 128.
The current state of the port as defined by the application of the STP:
•
disabled (1),
• blocking (2),
• listening (3),
• learning (4),
•
forwarding (5),
• broken (6)
This state controls what action a port takes on reception of the frame.
If the bridge detects a port malfunctioning, it places that port into the
broken (6) state. For ports that are disabled, the state has a value
of disabled.
The STP state of the port.
• Enabled — BPDUs are processed in accordance with STP.
• Disabled — The port stays in a forwarding state, received BPDUs
are dropped and not processed, and no BPDU is generated.
When this flag is set, the port is moved to the forwarding (5) state
upon being enabled.
• true (enables FastStart for the port)
• false (default, disables FastStart for the port)
This setting is contrary to that specified in the IEEE 802.1D standard
for STP, in which a port enters the blocking state following the
initialization of the bridging device or configuration of the port (that is,
the port is enabled (from the disabled state) through configuration).
Nortel Ethernet Routing Switch 8300
NN46200-510 03.01 Standard
4.0 27 August 2007