Does a change in the MSTP status of an AR router interface affect the MSTP status of other interfaces in the same MST region

0

If the MSTP status of an interface changes, the device will recalculate the status of all other interfaces in the MST region.

Other related questions:
Is the MSTP status of interfaces affected when the MSTP status of a member interface in the MST region changes
Yes. When the MSTP status of a member interface in the MST region changes, the device recalculates the MSTP status of all member interfaces in the MST region.

How does an AR router determine a same MST region
The device fails to learn correct MAC entries because: - The device does not receive packets because a link is Down, an interface is not added to a VLAN, an interface joins in loop protocol calculation and is blocked, or the MAC address drift detection is configured and an interface or a MAC address is blocked. - There is a loop in the network, causing MAC entry flapping. - The MAC address learning function is disabled, or corresponding sticky MAC address already exists. - The number of MAC entries has reached the upper limit of the device. - A static or blackhole route is configured.

Which status do MSTP interfaces of an AR router have and how do they process packets
MSTP interface status: - Forwarding: In this state, an interface forwards user traffic. Only the root interface or a specified interface can be in this state. - Learning: This is a transitional state. In this state, a switch will build a MAC address table according to the user traffic it receives (but not forward the user traffic). That is why this state is referred to as a learning state. - Discarding: In this state, an interface blocks packets and does not learn MAC addresses.

How can I configure an MSTP region on an S series switch
For S (except the S1700) series switches, an MSTP region is configured in the stp region-configuration view. Switches in the same MSTP region share the same MSTP region configuration. A switch is deleted from the region if the MSTP region setting of the switch is changed. The following parameters can be set for an MSTP region: 1. Format selector: The default value is 0 and cannot be set through the command. 2. Region name: It is the bridge MAC address by default. 3. Revision level: The default value is 0. 4. Instance/Vlans Mapped: Mapping between instances and VLANs. By default, all VLANs are mapped to instance 0.

Check the status of the E1 interface on the AR router
Check the status of the E1 interface on the AR router as follows: Run the display controller [ e1 [ interface-number ] ] command to check the information about the CE1/PRI interface, or run the display fe1 serial interface-number command to check the basic configuration and alarms of the E1-F interface. display controller e1 1/0/0 E1 1/0/0 current state : UP //Indicates that the state of the interface is Up. Description: HUAWEI, AR Series, E1 1/0/0 Interface Basic Configuration: //The following parameters must be consistent with those of the peer end (except for the clock) Work Mode is E1 Framed, Cable type is 120 Ohm balanced. //The work mode is E1, and the cable type is 120ohm twisted pair cable. Frame-format is NO-CRC4, Line Code is Hdb3. //The frame format is NO-CRC4, and the line code is Hdb3. Source Clock is Slave, Data-coding is Normal. //The clock status is slave, and the clock signal is not inverted. Idle code is 7E, Itf type is 7E, Itf number is 4. //The idle code and the type of characters filled between frames are 7e, and the number of characters filled between frames is 4. Loopback is Not Set. Alarm State: Receiver alarm state is Loss-of-Frame. Transmitter is sending remote alarm. Historical Statistics: //Perform error packet statistics. If the number of error packets increases, you can invert the clock. Data in current interval (0 seconds elapsed): 0 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs Total Data (last 24 hours): 0 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top