Drni Failure Handling Mechanisms - H3C S6850 Series Configuration Manual

Setting
PVID on the IPP
Spanning tree state
Spanning tree mode
MST region settings
Table 2 DR interface type 1 configuration
Setting
Aggregation mode
Spanning tree state
Link type
PVID
Type 2 configuration
Type 2 configuration consistency check is performed both globally and on DR interfaces.
and Table 4
Table 3 Global type 2 configuration
Setting
VLAN interfaces
Passing tagged VLANs
or passing PVID
Table 4 DR interface type 2 configuration
Setting
Passing tagged VLANs
Passing untagged
VLANs

DRNI failure handling mechanisms

DR interface failure handling mechanism
When the DR interface of one DR member device fails, the DR system forwards traffic through the
other DR member device.
As shown in
through a multichassis aggregation. If traffic to Device C arrives at Device B after the DR interface
connected Device B to Device C has failed, the DR system forwards the traffic as follows:
1. Device B sends the traffic to Device A over the IPL.
2. Device A forwards the downlink traffic received from the IPL to Device C.
Details
PVID on the IPP.
•
Global spanning tree state.
•
VLAN-specific spanning tree state.
Spanning tree mode, including STP, RSTP, PVST, and MSTP.
•
MST region name.
•
MST region revision level.
•
VLAN-to-MSTI mappings.
Details
Aggregation mode, including static and dynamic.
Interface-specific spanning tree state.
Interface link type, including access, hybrid, and trunk.
Interface PVID.
show settings that type 2 configuration contains.
Details
Up VLAN interfaces of which the VLANs contain the IPP.
VLANs of which the IPP forwards tagged traffic or PVID of which the IPP forwards
traffic.
Details
VLANs of which a DR interface forwards tagged traffic.
VLANs of which a DR interface forwards untagged traffic.
Figure 3, Device A and Device B form a DR system, to which Device C is attached
5
Table 3