All MIBs › DOCS-IETF-QOS-MIB › docsIetfQosParamSetTosOrMask
docsIetfQosParamSetTosOrMask
Module: DOCS-IETF-QOS-MIB
OID (symbolic): DOCS-IETF-QOS-MIB::docsIetfQosParamSetTosOrMask
OID (numeric): 1.3.6.1.2.1.127.1.2.1.18
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-only
Description: Specifies the OR mask for the IP TOS byte.
See the description of docsIetfQosParamSetTosAndMask for further details.
The IP TOS octet as originally defined in RFC 791 has been superseded by the 6-bit Differentiated Services Field (DSField, RFC 3260) and the 2-bit Explicit Congestion Notification Field (ECN field, RFC 3168). Network operators SHOULD avoid specifying values of docsIetfQosParamSetTosAndMask and docsIetfQosParamSetTosORMask that would result in the modification of the ECN bits.
What is docsIetfQosParamSetTosOrMask?
The OR mask applied after docsIetfQosParamSetTosAndMask when rewriting an IP packet's TOS byte on this service flow; combined with an AND mask of 'FF' and an OR mask of '00', the byte is left unchanged by default. Used to force a particular DSCP marking onto traffic as it's forwarded.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.127.1.2.1.18 snmpwalk -v2c -c public <target> DOCS-IETF-QOS-MIB::docsIetfQosParamSetTosOrMask
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.127.1.2.1.18.1 snmpget -v2c -c public <target> DOCS-IETF-QOS-MIB::docsIetfQosParamSetTosOrMask.1
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OID Breakdown
Upper-level ancestors (6 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.2 | mgmt | APERTUS-NPG-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.127 | docsIetfQosMIB | DOCS-IETF-QOS-MIB |
| 1.3.6.1.2.1.127.1 | docsIetfQosMIBObjects | DOCS-IETF-QOS-MIB |
| 1.3.6.1.2.1.127.1.2 | docsIetfQosParamSetTable | DOCS-IETF-QOS-MIB |
| 1.3.6.1.2.1.127.1.2.1 | docsIetfQosParamSetEntry | DOCS-IETF-QOS-MIB |
| 1.3.6.1.2.1.127.1.2.1.18 | docsIetfQosParamSetTosOrMask | DOCS-IETF-QOS-MIB |