H3C S6850 Series Configuration Guide

56
If this feature and the spanning tree protocol are enabled on a port which is inferior to its downstream
port, the downstream port can receive BPDUs from that port. To prevent network flapping caused by
this problem, disable the spanning tree protocol before you enable BPDU transparent transmission
on the port.
Procedure
1. Enter system view.
system-view
2. Enter interface view.
interface interface-type interface-number
3. Enable BPDU transparent transmission.
stp transparent enable
By default, the BPDU transparent transmission feature is disabled on a port.
Enabling SNMP notifications for new-root election
and topology change events
About spanning tree SNMP notifications
This task enables the device to generate logs and report new-root election events or spanning tree
topology changes to SNMP. For the event notifications to be sent correctly, you must also configure
SNMP on the device. For more information about SNMP configuration, see the network
management and monitoring configuration guide for the device.
When you use the
snmp-agent trap enable stp [ new-root | tc ] command, follow these
guidelines:
• The
new-root keyword applies only to STP, MSTP, and RSTP modes.
• The
tc keyword applies only to PVST mode.
• In STP, MSTP, or RSTP mode, the
snmp-agent trap enable stp command enables
SNMP notifications for new-root election events.
• In PVST mode, the
snmp-agent trap enable stp command enables SNMP notifications
for spanning tree topology changes.
Procedure
1. Enter system view.
system-view
2. Enable SNMP notifications for new-root election and topology change events.
snmp-agent trap enable stp [ new-root | tc ]
The default settings are as follows:
{ SNMP notifications are disabled for new-root election events.
{ In MSTP mode, SNMP notifications are enabled in MSTI 0 and disabled in other MSTIs for
spanning tree topology changes.
{ In PVST mode, SNMP notifications are disabled for spanning tree topology changes in all
VLANs.

H3C S6850 Series Specifications

General

Brand	H3C
Model	S6850 Series
Category	Switch
Language	English