l The switching device running STP is shut down or moved.
l The switching device running STP transitions to the RSTP mode.
NOTE
If you run the stp mcheck command in the system view, the MCheck operation is performed on all the
interfaces.
Step 5 Run:
stp transmit-limit packet-number
The maximum number of BPDUs sent by a port within each Hello time is set.
By default, the maximum number of BPDUs that a port sends within each Hello time is 147.
Step 6 (Optional) Run:
stp edged-port enable
The port is configured as an edge port.
If a device port is connected to a terminal, you can run this command to configure the port as
an edge port.
By default, the port is a non-edge port.
Step 7 Run:
quit
Return to the system view.
Step 8 (Optional) Run:
error-down auto-recovery cause cause-item interval interval-value
The auto recovery function on an edge port is configured. That is, enable the port in the error-
down state to automatically go Up, and set the delay for the transition from Down to Up.
There is no default value for the recovery time. Therefore, you must specify a delay when
configuring this command.
----End
Follow-up Procedure
When the topology of a spanning tree changes, the forwarding paths to associated VLANs are
changed. Then, ARP entries corresponding to those VLANs on the switching device need to be
updated. STP/RSTP processes ARP entries in either fast or normal mode.
l In fast mode, ARP entries to be updated are directly deleted.
l In normal mode, ARP entries to be updated are rapidly aged.
The remaining lifetime of ARP entries to be updated is set to 0. The switching device rapidly
processes these aged entries. If the number of ARP aging probe attempts is not set to 0,
ARP implements aging probe for these ARP entries.
In either fast or normal mode, MAC entries are directly deleted.
You can run the stp converge { fast | normal } command in the system view to configure the
STP/RSTP convergence mode.
By default, the STP/RSTP convergence is configured as normal.
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 8 STP/RSTP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
399
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