Stp Config-Digest-Snooping - H3C MSR 20-20 Command Reference Manual

610 C 38: MSTP C
HAPTER
Description
Examples

stp config-digest-snooping

Syntax
View
Parameters
Description
C
ONFIGURATION OMMANDS
dot1s: Configures the port(s) to receive and send only standard-format
(802.1s-compliant) MSTP BPDUs.
legacy: Configures the port(s) to receive and send only compatible-format MSTP
BPDUs.
Use the
stp compliance
recognize and send MSTP BPDUs.
Use the undo stp compliance
The default mode is auto, namely all ports recognize the BPDU format
automatically.
Note that:
Configured in Ethernet interface view, the setting is effective on the current
■
port only; configured in port group view, the setting is effective on all the ports
in the port group.
If the mode is set to auto on a port, the port automatically recognizes and
■
resolves the received compatible-format BPDUs or 802.1s-compliant BPDUs,
and sends, when needed, compatible-format or 802.1s-compliant BPDUs.
If the mode is set to legacy or dot1s, on a port, the port can only receive and
■
send BPDUs of the specified format. If the port is configured not to detect the
packet format automatically while it works in the MSTP mode, and if it receives
a packet in the format other than as configured, that port will become a
designated port, and the port will remain in the discarding state to prevent the
occurrence of a loop.
# Configure Ethernet 1/1 to receive and send only standard-format (802.1s) MSTP
packets.
<Sysname>system-view
[Sysname-Ethernet1/1] stp compliance dot1s
Restore the default mode for port Ethernet 1/1 to recognize and send MSTP
BPDUs.
[Sysname-Ethernet1/1] undo stp compliance
stp config-digest-snooping
undo stp config-digest-snooping
System view, Ethernet interface view, port group view
None
Use the stp config-digest-snooping
command to configure the mode the port(s) will use to
command to restore the default.
command to enable Digest Snooping.