DOCS-QOS-MIB :: docsQosPHSMask

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsDOCS-QOS-MIBdocsQosPHSMask

docsQosPHSMask

Module: DOCS-QOS-MIB

OID (symbolic): DOCS-QOS-MIB::docsQosPHSMask

OID (numeric): 1.3.6.1.2.1.10.127.7.1.10.1.3

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-only

Description: Payload header suppression mask defines the bit mask which used in combination with the docsQosPHSField defines which bytes in header must be suppressed/restored by the sending or receiving device.

Each bit of this bit mask corresponds to a byte in the docsQosPHSField, with the least significant bit corresponding to first byte of the docsQosPHSField.

Each bit of the bit mask specifies whether of not the corresponding byte should be suppressed in the packet. A bit value of '1' indicates that the byte should be suppressed by the sending device and restored by the receiving device. A bit value of '0' indicates that the byte should not be suppressed by the sending device or restored by the receiving device.

If the bit mask does not contain a bit for each byte in the docsQosPHSField then the bit mask is extended with bit values of '1' to be the necessary length.

What is docsQosPHSMask?

Bitmask that, together with docsQosPHSField, tells the sending or receiving device which specific bytes of a header are suppressed on transmit and restored on receive; a '1' bit means that byte is suppressed, and a short mask is auto-extended with 1s. Admins troubleshoot PHS mismatches by comparing this mask against docsQosPHSField to see exactly which header bytes are being stripped for bandwidth savings.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.127.7.1.10.1.3
snmpwalk -v2c -c public <target> DOCS-QOS-MIB::docsQosPHSMask

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.10.127.7.1.10.1.3.1
snmpget -v2c -c public <target> DOCS-QOS-MIB::docsQosPHSMask.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::docsQosPHSMask 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 OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAXON-MIB
1.3.6.1.2.1mib_2AXON-MIB
1.3.6.1.2.1.10transmissionCHECKPOINT-MIB-2
1.3.6.1.2.1.10.127docsIfMibDOCS-IETF-RFI-MIB
Numeric OIDNameModule
1.3.6.1.2.1.10.127.7docsQosMIBDOCS-QOS-MIB
1.3.6.1.2.1.10.127.7.1docsQosMIBObjectsDOCS-QOS-MIB
1.3.6.1.2.1.10.127.7.1.10docsQosPHSTableDOCS-QOS-MIB
1.3.6.1.2.1.10.127.7.1.10.1docsQosPHSEntryDOCS-QOS-MIB
1.3.6.1.2.1.10.127.7.1.10.1.3docsQosPHSMaskDOCS-QOS-MIB