All MIBs › DOCS-QOS-MIB › docsQosParamSetTosAndMask
docsQosParamSetTosAndMask
Module: DOCS-QOS-MIB
OID (symbolic): DOCS-QOS-MIB::docsQosParamSetTosAndMask
OID (numeric): 1.3.6.1.2.1.10.127.7.1.2.1.21
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-only
Description: Specifies the AND mask for IP TOS byte for overwriting IP packets TOS value. The IP packets TOS byte is bitwise ANDed with docsQosParamSetTosAndMask and result is bitwise ORed with docsQosParamSetTosORMask and result is written to IP packet TOS byte. A value of 'FF'H for docsQosParamSetTosAndMask and a value of '00'H for docsQosParamSetTosOrMask means that IP Packet TOS byte is not overwritten.
Even though the this object is only enforced by the Cable Modem Termination System (CMTS), Cable Modems must report the value as signaled in the referenced parameter.
This combination is reported if the referenced parameter is not present in a QOS Parameter Set.
What is docsQosParamSetTosAndMask?
AND mask applied to a packet's IP TOS byte before ORing in docsQosParamSetTosOrMask and rewriting the packet's TOS field on the CMTS; a value of 'FF'H combined with a 0x00 OR mask means the TOS byte is left unmodified, which is the default when the parameter isn't signaled. Admins check both mask objects together when diagnosing unexpected DSCP/TOS rewriting by the CMTS.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.127.7.1.2.1.21 snmpwalk -v2c -c public <target> DOCS-QOS-MIB::docsQosParamSetTosAndMask
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.10.127.7.1.2.1.21.1 snmpget -v2c -c public <target> DOCS-QOS-MIB::docsQosParamSetTosAndMask.1
Start monitoring DOCSIS 1.1/2.0 cable modem/CMTS (QoS, vendor-neutral IETF/CableLabs standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOCS-QOS-MIB::docsQosParamSetTosAndMask OID value, configure state conditions and alerts, and monitor any DOCSIS 1.1/2.0 cable modem/CMTS (QoS, vendor-neutral IETF/CableLabs standard) from a single console.
OID Breakdown
Upper-level ancestors (8 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 | AXON-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| 1.3.6.1.2.1.10 | transmission | CHECKPOINT-MIB-2 |
| 1.3.6.1.2.1.10.127 | docsIfMib | DOCS-IETF-RFI-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.10.127.7 | docsQosMIB | DOCS-QOS-MIB |
| 1.3.6.1.2.1.10.127.7.1 | docsQosMIBObjects | DOCS-QOS-MIB |
| 1.3.6.1.2.1.10.127.7.1.2 | docsQosParamSetTable | DOCS-QOS-MIB |
| 1.3.6.1.2.1.10.127.7.1.2.1 | docsQosParamSetEntry | DOCS-QOS-MIB |
| 1.3.6.1.2.1.10.127.7.1.2.1.21 | docsQosParamSetTosAndMask | DOCS-QOS-MIB |