H3C S7500 Series Ethernet Switches Command Manual

Command Manual – MSTP
H3C S7500 Series Ethernet Switches Chapter 1
MSTP Configuration Commands
1-19
Description
Use the stp interface cost command to set the path cost(s) of the specified port(s) in a
specified MSTI in system view.
Use the undo stp interface cost command to revert to the default path cost(s) of the
specified port(s) in the specified MSTI in system view.
By default, a switch automatically calculates the path costs of a port in different MSTIs
based on a specified standard.
If you specify the instance-id argument to be 0 or do not specify this argument, the stp
interface cost command sets the path cost(s) of the specified port(s) in the CIST.
The path costs of a port in MSTIs affect the roles of the ports in the MSTIs. By
configuring different path costs for the same port in different MSTIs, you can make
flows of different VLANs travel along different physical links, so as to achieve
VLAN-based load balancing. Changing the path cost of a port in an MSTI may change
the role of the port in the MSTI and put it in state transition.
The default port path cost differs with port speed. Refer to
Table 1-4 for details.
Related commands: stp cost.
Examples
# Set the path cost of Ethernet 2/0/3 in MSTI 2 to 400 in system view.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] stp instance 2 interface Ethernet 2/0/3 cost 400
1.1.18 stp interface edged-port
Syntax
stp interface interface-list edged-port { enable | disable }
undo stp interface interface-list edged-port
View
System view
Parameters
interface-list: Ethernet port list. You can specify multiple Ethernet ports by providing this
argument in the form of interface-list = { interface-type interface-number [ to
interface-type interface-number ] } &<1-10>, where &<1-10> means that you can
provide up to 10 port indexes/port index ranges for this argument.
enable: Configures the specified Ethernet ports to be edge ports.
disable: Configures the specified Ethernet ports to be non-edge ports.