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 normal STP/RSTP convergence mode is used.
NOTE
The normal mode is recommended. If the fast mode is adopted, ARP entries will be frequently deleted,
causing the CPU usage on the MPU or LPU to reach 100%. As a result, network flapping will frequently
occur.
7.4.4 Checking the Configuration
After configuring STP/RSTP parameters that affect the topology convergence, you can verify
the configurations.
Prerequisites
The parameters that affect topology convergence have been configured.
Procedure
l Run the display stp [ interface interface-type interface-number ] [ brief ] command to
view spanning-tree status and statistics.
----End
Example
Run the display stp command to view the values of the Hello timer, Max Age timer, Forward
Delay timer, maximum number of sent BPDUs within each Hello time interval, and whether a
port is connected to a P2P link.
<Huawei> display stp interface ethernet 2/0/1
----[CIST][Port8(Ethernet2/0/1)][FORWARDING]----
Port Protocol :Enabled
Port Role :Root Port
Port Priority :128
Port Cost(Legacy) :Config=auto / Active=199
Designated Bridge/Port :32768.0010-1220-0100 / 128.8
Port Edged :Config=default / Active=disabled
Point-to-point :Config=auto / Active=true
Transit Limit :147 packets/hello-time
Protection Type :None
Port STP Mode :RSTP
Port Protocol Type :Config=auto / Active=dot1s
PortTimes :Hello 2s MaxAge 20s FwDly 15s RemHop 0
TC or TCN send :2
TC or TCN received :2
BPDU Sent :10
TCN: 0, Config: 0, RST: 10, MST: 0
BPDU Received :25
TCN: 0, Config: 0, RST: 25, MST: 0
Huawei AR3200 Series Enterprise Routers
Configuration Guide - LAN 7 STP/RSTP Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
201
To Next Page
Loading...
