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Try it: sysDescr (1.3.6.1.2.1.1.1) →

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ZYXEL-BRIDGE-CONTROL-PROTOCOL-TRANSPARENCY-MIB

6 objects

The subtree for bridge control protocol transparency

Imported Objects

BRIDGE-MIB	dot1dBasePort
P-BRIDGE-MIB	EnabledStatus
SNMPv2-SMI	-- RFC2578 MODULE-IDENTITY OBJECT-TYPE
ZYXEL-ES-SMI	esMgmt

OID	Name	Access	Status	Description
1.3.6.1.4.1.890.1.15.3.15	IdentityzyxelBridgeControlProtocolTransparency			The subtree for bridge control protocol transparency
1.3.6.1.4.1.890.1.15.3.15.1	NodezyxelBridgeControlProtocolTransparencySetup
1.3.6.1.4.1.890.1.15.3.15.1.1	ScalarzyBridgeControlProtocolTransparencyState	read-write	current	Enable/Disable bridge control protocol transparency on the switch.
1.3.6.1.4.1.890.1.15.3.15.1.2	TablezyxelBridgeControlProtocolTransparencyPortTable	not-accessible	current	The table contains bridge control protocol transparency port configuration.
1.3.6.1.4.1.890.1.15.3.15.1.2.1	RowzyxelBridgeControlProtocolTransparencyPortEntry	not-accessible	current	An entry contains bridge control protocol transparency port configuration.
1.3.6.1.4.1.890.1.15.3.15.1.2.1.1	ColumnzyBridgeControlProtocolTransparencyPortMode	read-write	current	Configure bridge control protocol transparency mode for the port. 'Peer' means to process any BPDU (Bridge Protocol Data Unit) received on this port. 'Tunnel' …