Mstp Implementation On Switches; Configuring Root Bridge; Stp-Related Standards - H3C S5100-SI Series Operation Manual

Operation Manual – MSTP
H3C S5100-SI/EI Series Ethernet Switches
messages and cannot forward packets. Otherwise, the switch sets the local port to the
designated port, replaces the original configuration BPDU of the port with the
calculated one and advertises it regularly.

1.2.4 MSTP Implementation on Switches

MSTP is compatible with both STP and RSTP. That is, MSTP-enabled switches can
recognize the protocol packets of STP and RSTP and use them for spanning tree
calculation. In addition to the basic MSTP functions, H3C series switches also provide
the following functions for users to manage their switches.
Root bridge hold
Root bridge backup
Root guard
BPDU guard
Loop guard
TC-BPDU attack guard
BPDU packet drop

1.2.5 STP-related Standards

STP-related standards include the following.
IEEE 802.1D: spanning tree protocol
IEEE 802.1w: rapid spanning tree protocol
IEEE 802.1s: multiple spanning tree protocol

1.3 Configuring Root Bridge

Complete the following tasks to configure the root bridge:
Enabling MSTP
Configuring an MST Region
Specifying the Current Switch as a
Root Bridge/Secondary Root Bridge
Configuring the Bridge Priority of the
Current Switch
Configuring How a Port Recognizes
and Sends MSTP Packets
Task
1-18
Chapter 1 MSTP Configuration
Remarks
Required
To prevent network topology jitter caused
by other related configurations, you are
recommended to enable MSTP after other
related configurations are performed.
Required
Required
Optional
The priority of a switch cannot be changed
after the switch is specified as the root
bridge or a secondary root bridge.
Optional