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Command Manual (For Soliton) – MSTP
H3C S3100 Series Ethernet Switches
Chapter 1 MSTP Configuration Commands
1-5
z
If both an MSTI ID list and a port list are specified, the command displays spanning
tree information about the specified MSTIs and the specified ports in the order of
MSTI ID.
MSTP state information includes:
1) Global CIST parameters: Protocol operating mode, switch priority in the CIST
instance, MAC address, hello time, max age, forward delay, max hops, the
common root of the CIST, the external path cost for the switch to reach the CIST
common root, region root, the internal path cost for the switch to reach the region
root, CIST root port of the switch, the state of the BPDU guard function (enabled or
disabled), the state of the digest snooping feature (enabled or disabled), and the
state of the TC-BPDU attack guard function (enabled or disabled).
2)
CIST port parameters: Port protocol, port role, port priority, path cost, designated
bridge, designated port, edge port/non-edge port, whether or not the link on a port
is a point-to-point link, format of the MST BPDUs that the port can send, the
maximum transmitting speed, type of the enabled guard function, state of the
digest snooping feature (enabled or disabled), VLAN mappings, hello time, max
age, forward delay, Message-age time, and remaining hops.
3)
Global MSTI parameters: MSTI instance ID, bridge priority of the instance, region
root, internal path cost, MSTI root port, master bridge, and external path cost.
4) MSTI port parameters: Port state, role, priority, path cost, designated bridge,
designated port, remaining hops, and the number of VLANs mapped to the current
MSTI.
The statistical information includes: the numbers of the TCN BPDUs, the configuration
BPDUs, the RST BPDUs, and the MST BPDUs transmitted/received by each port.
Related commands:
reset stp
.
Examples
# Display the brief state information of MSTI 0 on Ethernet 1/0/1 through Ethernet 1/0/4.
<Sysname> display stp instance 0 interface Ethernet 1/0/1 to Ethernet 1/0/4
brief
MSTID Port Role STP State Protection
0 Ethernet1/0/1 ALTE DISCARDING LOOP
0 Ethernet1/0/2 DESI FORWARDING NONE
0 Ethernet1/0/3 DESI FORWARDING NONE
0 Ethernet1/0/4 DESI FORWARDING NONE
Table 1-2
Description on the fields of the
display stp
command
Field
Description
MSTID
ID of an MSTI in the MST region
Port
Port index corresponding to an MSTI