H3C S7500 Series Ethernet Switches Command Manual

Table Of Contents
Command Manual – MSTP
H3C S7500 Series Ethernet Switches Chapter 1
MSTP Configuration Commands
1-13
Note:
z The digest snooping function is needed only when your S7500 switch is connected
to other vendors’ proprietary spanning tree protocol-adopted switches.
z To enable the digest snooping function successfully, you must first enable it on all
the switch ports that connect to other vendors’ proprietary spanning tree
protocol-adopted switches and then enable it globally.
z To enable the digest snooping function, the interconnected switches must be
configured with exactly the same MST region settings.
z The digest snooping function must be enabled on all the switch ports that connect to
other vendors' proprietary spanning tree protocol-adopted switches in the same
MST region.
z With the digest snooping function enabled, the VLAN-to-MSTI mapping cannot be
modified.
z The digest snooping function is not applicable to ports on the boundary of an MST
region.
z The digest snooping function is not applicable to edge ports.
Examples
# Enable the digest snooping function for Ethernet 2/0/1.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] interface Ethernet2/0/1
[H3C-Ethernet2/0/1] stp config-digest-snooping
[H3C-Ethernet2/0/1] quit
[H3C]stp config-digest-snooping
1.1.13 stp cost
Syntax
stp [ instance instance-id ] cost cost
undo stp [ instance instance-id ] cost
View
Ethernet port view
Parameters
instance-id: ID of an MSTI, ranging from 0 to 16. A value of 0 specifies the CIST.
cost: Path cost to be set for the port. This argument ranges from 1 to 200,000.