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how to Configuring the MSTP in OLT

Latest reply: Oct 27, 2018 07:36:49 2146 8 11 0 0
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Configure the MSTP parameters as follows:

  • Enable the MSTP function.
  • Enable the MSTP function on port 0/19/0.
  • Set the MSTP running mode to MSTP compatible mode.
  • Configure MST region parameters:
    • Configure the MD5-Key for the MD5 encryption algorithm to 0x11ed224466.
    • Configure the MST region name to huawei-mstp-bridge.
    • Map VLAN2-VLAN10 and VLAN12-VLAN16 to MSTP instance 3.
    • Map all the VLANs to the specified MSTP instances.
    • Configure the MSTP revision level of the device to 100.
  • Configure the maximum hops for the MST region to 10.
  • Activate the configuration of the MST region manually.
  • Configure the priority of the device in spanning tree instance 2 to 4096.
  • Configure the current device as the root bridge of MSTP instance 2.
  • Configure the diameter of the switching network to 6.
  • Configure the calculation standard for the path cost to IEEE 802.1t.
  • Configure the time parameters of a specified bridge:
    • Configure the forward delay to 2000 centiseconds.
    • Configure the hello time to 1000 centiseconds.
    • Configure the max age to 3000 centiseconds.
    • Configure the timeout time factor to 6.
  • Configure the parameters of a specified port:
    • Configure the maximum number of packets transmitted in a hello time period to 16.
    • Configure port 0/19/0 to be an edge port.
    • Configure the path cost of the port in a specified spanning tree instance to 1024.
    • Configure the priority of the port to 64.
    • The link connected to port 0/19/0 is a point-to-point link.
  • Enable the BPDU protection function on the device.
huawei(config)#stp enable
  Change global stp state may active region configuration,it may take several
minutes,are you sure to change global stp state? [Y/N][N]y
huawei(config)#stp port 0/19/0 enable
huawei(config)#stp mode mstp
huawei(config)#stp md5-key 11ed224466
huawei(config)#stp region-configuration
huawei(stp-region-configuration)#region-name huawei-mstp-bridge
huawei(stp-region-configuration)#instance 3 vlan 2 to 10 12 to 16
huawei(stp-region-configuration)#vlan-mapping module 16
huawei(stp-region-configuration)#revision-level 100
huawei(stp-region-configuration)#active region-configuration
huawei(stp-region-configuration)#quit
huawei(config)#stp instance 2 priority 4096
huawei(config)#stp instance 2 root primary
huawei(config)#stp max-hops 10
huawei(config)#stp bridge-diameter 6
huawei(config)#stp pathcost-standard dot1t
huawei(config)#stp timer forward-delay 2000
huawei(config)#stp timer hello 1000
huawei(config)#stp timer max-age 3000
huawei(config)#stp time-factor 6
huawei(config)#stp port 0/19/0 transmit-limit 16
huawei(config)#stp port 0/19/0 edged-port enable
huawei(config)#stp port 0/19/0 instance 0 cost 1024
huawei(config)#stp port 0/19/0 instance 0 port-priority 64
huawei(config)#stp port 0/19/0 point-to-point force-true
huawei(config)#stp bpdu-protection enable

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2#
yjhd
Created Oct 10, 2018 01:39:59

I think MSTP is just transmission, also there MSTP on access equipment? that is very good.

This post was last edited by yjhd at 2018-10-31 09:22.
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3#
No.9527
Created Oct 15, 2018 05:37:38

Both STP and RSTP (which is an evolution of STP and allows for fast network topology convergence) suffer from a significant limitation: neither can implement VLAN-based load balancing because all VLANs on a LAN use one spanning tree. When a link is blocked, it no longer transmits traffic, which wastes bandwidth and prevents certain VLAN packets from being forwarded. This post was last edited by No.9527 at 2018-10-31 06:28.
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4#
Torrent
Created Oct 15, 2018 06:31:28

  • If STP/RSTP/MSTP is enabled on an interface, the interface participates in the spanning tree calculation and determine whether it is in the forwarding state according to the calculation result.

  • If STP/RSTP/MSTP is disabled on an interface, the interface does not participate in the spanning tree calculation and it is always in the forwarding state.

  • STP/RSTP/MSTP must be enabled on all interfaces that participate in the spanning tree calculation. Otherwise, a loop may occur.

  • Spanning tree calculation may result in network flapping. Before network convergence, packets cannot be correctly forwarded. In this case, if the DHCP server is configured on a VLANIF interface, DHCP clients obtain IP addresses slowly. To solve the problem, disable STP or configure the device interface connected to a terminal as the edge interface.

This post was last edited by Torrent at 2018-10-31 07:31.
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5#
GongXiaochuan
Created Oct 15, 2018 08:40:46

for below 2 command can you please provide more explain ,

  • Configure the MD5-Key for the MD5 encryption algorithm to 0x11ed224466.
  • Configure the MST region name to huawei-mstp-bridge.
This post was last edited by GongXiaochuan at 2018-10-30 01:23.
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(0) (0)
6#
Skay
Created Oct 16, 2018 08:12:40

It is recommended to add multiple MSTP in OLT scenarios to our manual. Every time this problem is encountered, it is basically a configuration problem, so some standard scenarios are needed. Next time we push the customer to pre-configure.
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7#
No.9527
Created Oct 19, 2018 09:29:53

Both STP and RSTP (which is an evolution of STP and allows for fast network topology convergence) suffer from a significant limitation: neither can implement VLAN-based load balancing because all VLANs on a LAN use one spanning tree. When a link is blocked, it no longer transmits traffic, which wastes bandwidth and prevents certain VLAN packets from being forwarded. This post was last edited by No.9527 at 2018-10-31 06:28.
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(0) (0)
8#
littlestone
Created Oct 23, 2018 08:38:15

For example, packets with variable destination MAC addresses need to be forwarded but the load balancing mode is based on destination IP addresses. In this case, change the load balancing mode to destination MAC address-based This post was last edited by littlestone at 2018-10-31 06:04.
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9#
wanglei259
Created Oct 27, 2018 07:36:49

Thanks for your sharing ,which is a wonderful guidance, i really interested in this article, which is useful for us and improvement product technology and become to a professional engineer .
I hope that you can insist post new kownlege and skills, i will alawys keep an eye on your sharing.
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