All MIBs › DOCS-QOS3-MIB › docsQosPktClassIpTosMask
docsQosPktClassIpTosMask
Module: DOCS-QOS3-MIB
OID (symbolic): DOCS-QOS3-MIB::docsQosPktClassIpTosMask
OID (numeric): 1.3.6.1.4.1.4491.2.1.21.1.1.1.6
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-only
Description: This attribute indicates the mask value is bitwise ANDed with TOS byte in an IP packet, and this value is used for range checking of TosLow and TosHigh.
If the referenced parameter is not present in a classifier, this attribute reports the value of 0.
The IP TOS octet as originally defined in RFC 791 has been superseded by the 6-bit Differentiated Services Field (DSField, RFC 3260) and the 2-bit Explicit Congestion Notification Field (ECN field, RFC 3168). This object is defined as an 8-bit octet per the DOCSIS Specification for packet classification.
What is docsQosPktClassIpTosMask?
Provides the bitmask ANDed against a packet's TOS/DSCP byte before it's compared against the IpTosLow/IpTosHigh range for this classifier. Reports 0 when no TOS masking is configured, meaning the mask effectively isn't restricting which TOS bits matter for the match.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.21.1.1.1.6 snmpwalk -v2c -c public <target> DOCS-QOS3-MIB::docsQosPktClassIpTosMask
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.21.1.1.1.6.1 snmpget -v2c -c public <target> DOCS-QOS3-MIB::docsQosPktClassIpTosMask.1
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OID Breakdown
Upper-level ancestors (10 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 |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.4491 | cableLabs | CLAB-DEF-MIB |
| 1.3.6.1.4.1.4491.2 | clabProject | CLAB-DEF-MIB |
| 1.3.6.1.4.1.4491.2.1 | clabProjDocsis | CLAB-DEF-MIB |
| 1.3.6.1.4.1.4491.2.1.21 | docsQos3Mib | CLAB-DEF-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.4491.2.1.21.1 | docsQosMibObjects | DOCS-QOS3-MIB |
| 1.3.6.1.4.1.4491.2.1.21.1.1 | docsQosPktClassTable | DOCS-QOS3-MIB |
| 1.3.6.1.4.1.4491.2.1.21.1.1.1 | docsQosPktClassEntry | DOCS-QOS3-MIB |
| 1.3.6.1.4.1.4491.2.1.21.1.1.1.6 | docsQosPktClassIpTosMask | DOCS-QOS3-MIB |