How to Configure Huawei MSTP in OLT?

Configure Huawei 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

How to monitor Huawei DSLAM backup in U2000?

How to monitor Huawei DALSM MA5616 or MA5600T Backup in U2000?

You can check the backups from this path:

You can also modify the backup policy and select the file type you want for the NE you choose:

For the backup result, you can check them only in U2000. For the backups failure, you can check the alarms if your U2000 version is R16C60 or higher.

Unfortunately, there is no function implemented yet to allow us to receive the failed backups alarms via email.

Huawei WDM 40G Line Board NS3 configuration instruction

Huawei 40G line board TN54NS3/TN55NS3 board for Huawei OptiX OSN 6800/OptiX OSN 8800 universal platform subrack only supports relay mode. TN56NS3 board for the OptiX OSN 8800 universal platform subrack only supports relay mode.

When the TN56NS3 board is used to receive SDH services, the SDH service license for universal line boards is required.

When the TN56NS3 board is installed in a general OptiX OSN 8800 T64 subrack, the XCT+SXH or XCT+SXM cross-connect boards must be used. When the TN56NS3 board is installed in an enhanced OptiX OSN 8800 T64 subrack, the XCT+SXH, XCT+SXM, or UXCT+USXH cross-connect boards must be used. When the TN56NS3 board is installed in an OptiX OSN 8800 T16 subrack to receive SDH services, the TN16UXCM cross-connect board must be used.

When SDH services are provisioned, the TN56NS3 board can be used only in an independent subrack, but not in a master or slave subrack. When OTN services are provisioned, the TN56NS3 board can be used in an independent subrack, a master subrack, or a slave subrack.

Which Priority Does an Interface Trust?

An interface can be configured to trust DSCP priorities and 802.1p priorities simultaneously,

or trust IP precedences and 802.1p priorities simultaneously. When an interface is configured

to trust DSCP priorities and 802.1p priorities simultaneously, or trust IP precedences and

802.1p priorities simultaneously, the interface:

Trusts DSCP priorities or IP priorities if L3 packets are received.

Trusts 802.1p priorities if L2 packets are received.

The DSCP priority and IP precedence use different bits of the ToS field; therefore, an interface cannot be configured to trust DSCP priorities and IP precedences simultaneously.

Huawei S5720-SI, S5720S-SI, S5720LI, S5720S-LI, S5710-X-LI, S1720GW-E, S1720GWR-E, S1720GW, and S1720GWR do not support the trust ip-precedence command.

What Are The Differences in the Ring Check Function Between Earlier-Version and Later-Version MA5600T?

• The processing mechanism of the ring check function of an earlier-version MA5600T has the following disadvantages:
  • After a loop is detected, Huawei MA5600T deactivates the ONT. In this way, live-network configurations are modified.
  • After Huawei ONT like HG8546M is deactivated, you need to manually activate the ONT (that is, re-configure services). This increases the workload.
• The processing mechanism of the ring check function of MA5600T V800R009 (or later versions) is optimized in terms of the following aspects:
  • After a loop is detected, the MA5600T makes the ONT go offline. In this way, live-network configurations are not modified but the ONT is stopped from transmitting services.
  • The MA5600T automatically makes the offline ONT go online after a period of time elapses. Note that the length of this period of time is configurable.
  • An easy-to-use query function is provided. With this function, you can query all ONTs that go offline because of loops.
• If you need to query all ONT deactivation records, run the display event history eventid command to query the information about events 0x2910000d and 0x29100026.

Event 0x2910000d indicates the PON port status; event 0x29100026 indicates the non-PON port status.

Block all DHCP packets to exit an interface S5720S-28X-LI-24S-AC

Issue Description

For some specific scenarios, we need to block DHCP broadcast packets (Discovery, Request) to exit a specific interface.

In this specific scenario, PC1 gets dynamic IP from DHCP server located on LSW2. LSW1 just forwards the discovery and request packets towards LSW2.

The requirement is to block these packets to exit GE0/0/3 on LSW1.

Solution

Solution: configure a traffic policy and apply it in outbound direction on S5720S-28X-LI-24S-AC interface where you want to block the packets (in this case GE0/0/3 of LSW1)

The traffic classifier will use an advanced ACL to match the DHCP traffic, which is UDP traffic for ports 67 and 68.

The traffic behavior will be set to "deny" and, optionally to "statistic enable" to check afterwards if packets are dropped.

Configuration is as bellow:

acl number 3000

rule 5 permit udp destination-port eq bootps

rule 10 permit udp destination-port eq bootpc

#

traffic classifier c1 operator and

if-match acl 3000

#

traffic behavior b1

deny

statistic enable

#

traffic policy p1

classifier c1 behavior b1

#

interface GigabitEthernet0/0/3

port link-type trunk

port trunk allow-pass vlan 2 to 4094

traffic-policy p1 outbound

dhcp snooping enable

if you have some other questions about Huawei Switch, you can contact for supports@thunder-link.com.

Huawei MA5800 GPON Board H901GPHF

H901GPHF is a 16 port GPON interface card of Huawei NG OLT, provides GPON service access from ONT. GPHF can maximum access 16*128 GPON subscribers. 

• Apply to Huawei MA5800 X7, X15, X17 NG OLT system
• Support split ration 1:128
• Transmit Speed: 2.49Gbit/s, Receive Speed: 1.24Gbit/s
• Interface Type: SC/PC
• Max Transmit Distance: 20KM
• Transmit Wavelength: 1490nm, Receive Wavelength: 1310nm
• Standards Compliance: ITU-T G.984.1, ITU-T G.984.2, ITU-T G.984.3, ITU-T G.984.4
• C+ SFP Module Optical Power: 3 dBm~7 dBm, Receiver Sensitivity: -32 dBm
• B+ SFP Module Optical Power: 1.5 dBm~5 dBm, Receiver Sensitivity: -28 dBm