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from pyasn1.compat.octets import null
class ContextData:
"""Creates UDP/IPv6 configuration entry and initialize socket API if needed.
This object can be used by
:py:class:`~pysnmp.entity.rfc3413.oneliner.cmdgen.AsyncCommandGenerator` or
:py:class:`~pysnmp.entity.rfc3413.oneliner.ntforg.AsyncNotificationOriginator`
and their derevatives for forming SNMP PDU and also adding new entries to
Local Configuration Datastore (LCD) in order to support SNMPv1/v2c with
SNMPv3 interoperability.
See :RFC:`3411#section-4.1` for SNMP Context details.
Parameters
----------
contextEngineId : str
Uniquely identifies an SNMP entity that may realize an instance of
a MIB with a particular contextName (:RFC:`3411#section-3.3.2`).
More frequently than not, ContextEngineID is the same as
authoritative SnmpEngineID, however if SNMP Engine serves multiple
SNMP Entities, their ContextEngineIDs would be distinct.
Default is authoritative SNMP Engine ID.
contextName : str
Used to name an instance of MIB (:RFC:`3411#section-3.3.3`).
Default is empty string.
Examples
--------
>>> from pysnmp.entity.rfc3413.oneliner.ctx import ContextData
>>> ContextData()
ContextData(contextEngineId=None, contextName='')
>>> ContextData(OctetString(hexValue='01020ABBA0'))
ContextData(contextEngineId=OctetString(hexValue='01020abba0'), contextName='')
>>> ContextData(contextName='mycontext')
ContextData(contextEngineId=None, contextName='mycontext')
"""
def __init__(self, contextEngineId=None, contextName=null):
self.contextEngineId = contextEngineId
self.contextName = contextName
def __repr__(self):
return '%s(contextEngineId=%r, contextName=%r)' % (
self.__class__.__name__, self.contextEngineId, self.contextName
)
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