H3C H3C S3600 Series, Руководство по управлению

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When the digest snooping feature is enabled on a port, the port turns to the discarding state. That is,
the port stops sending BPDU packets. The port is not involved in the STP calculation until it
receives BPDU packets from the peer port.
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The digest snooping feature is needed only when your switch is connected to another
manufacturer’s switches adopting proprietary spanning tree protocols.
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To enable the digest snooping feature successfully, you must first enable it on all the switch ports
that connect to another manufacturer’s switches adopting proprietary spanning tree protocols and
then enable it globally.
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To enable the digest snooping feature, the interconnected switches and another manufacturer’s
switch adopting proprietary spanning tree protocols must be configured with exactly the same MST
region-related configurations (including region name, revision level, and VLAN-to-MSTI mapping).
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The digest snooping feature must be enabled on all the switch ports that connect to another
manufacturer’s switches adopting proprietary spanning tree protocols in the same MST region.
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When the digest snooping feature is enabled globally, the VLAN-to-MSTI mapping table cannot be
modified.
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The digest snooping feature is not applicable to boundary ports in an MST region.
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The digest snooping function is not applicable to edge ports in an MST region.
Examples
# Enable the digest snooping feature for Ethernet 1/0/1.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] stp interface Ethernet 1/0/1 config-digest-snooping
stp interface cost
Syntax
stp interface interface-list [ instance instance-id ] cost cost
undo stp interface interface-list [ instance instance-id ] cost
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.
instance-id : MSTI ID ranging from 0 to 16. The value of 0 refers to the CIST.
cost : Path cost to be set for the port. The range of the cost argument varies with the standard used for
calculating the default path cost of a port as follows:
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With the IEEE 802.1D-1998 standard selected, the path cost of an Ethernet port ranges from 1 to
65535.