sysConfigHalfDuplexBackPressure
STAND-ALONE-ETHERNET-SWITCH-MIB ·
.1.3.6.1.4.1.437.1.1.3.2.21
Object
scalar mandatory
r/w
Enumeration
Back-pressure allows a port to force a collision when there
are no buffers to receive frames. Because collision is only
meaningful on a port operating in half-duplex, back-pressure
enhancement does not apply to full-duplex ports.
When set to enabled(1), buffer starvation causes the switch
to force collisions when receiving frames on (half-duplex)
ports. This, in turn, signals network nodes that are connected
to these ports to retransmit their frames. It is expected
that this transit delay enables the switch to free up buffers
to successfully receive the frames.
When set to disabled(2), the switch does not apply back-
pressure when there is buffer starvation.
The default value is disabled(2).
Context
- MIB
- STAND-ALONE-ETHERNET-SWITCH-MIB
- OID
.1.3.6.1.4.1.437.1.1.3.2.21- Type
- scalar
- Access
- readwrite
- Status
- mandatory
- Parent
- sysConfig
Net-SNMP examples
How SNMP and these commands workScalars have one instance, identified by the .0 suffix.
Read the scalar instance
/usr/bin/snmpget -v2c -c '<community>' -Pud -Ir -OQUv -m 'STAND-ALONE-ETHERNET-SWITCH-MIB' -M '/opt/observium/mibs/cisco:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'STAND-ALONE-ETHERNET-SWITCH-MIB::sysConfigHalfDuplexBackPressure.0'
More examples
Translate to a numeric OID
/usr/bin/snmptranslate -Pud -Ir -On -m 'STAND-ALONE-ETHERNET-SWITCH-MIB' -M '/opt/observium/mibs/cisco:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'STAND-ALONE-ETHERNET-SWITCH-MIB::sysConfigHalfDuplexBackPressure'
Syntax
Enumeration
Values & Constraints
Enumerated Values
1 | enabled |
2 | disabled |