| OID symbolic | OID numeric | Type | Access | Description |
|---|
| ciscoMgcMIB | 1.3.6.1.4.1.9.9.321 | | | This MIB is used to support MGC(call agent) and
MGC Group configuration.
The MGC or MGC group configuration is performed
under a specific gateway(cmgwIndex).
The call agent is an external element (outside
of gateway) with call control intelligence
to control call connection in gateway.
The protocols used for communication between voice
gateway and call agent included SGCP, MGCP, ...
Multiple IP addresses can be associated with one
call agent.
An MGC group is a logical grouping of several MGCs
into one group.
MGC redundancy is used to support multi call agent
for one gateway. With MGC redundancy, a voice
gateway can send gateway-initiated-commands to the
next MGC in the MGC group if it fails to receive
response from any IP address(es) associated to the
current MGC.
To use MGC redundancy in gateway:
Step 1: add individual entry (in any order) for
profile
MGC
Step 2: make association between the entries
1 IP with MGC
2 MGC with MGC group
1/2 protocol with MGC group
3 MGC group with profile
or
MGC group with gateway
Only if a MGC group at least is associated with
one profile or gateway, then the MGC group can be
used, otherwise the MGC group is useless.
To delete the following entries, it is needed to
do de-association first:
profile
MGC
When do de-association, the order is opposite to that
of association. |
| cMgcConfig | 1.3.6.1.4.1.9.9.321.1.1 | | | |
| cMgcConfigEntry | 1.3.6.1.4.1.9.9.321.1.1.1.1 | | not-accessible | Each entry represents a call agent(MGC).
Each entry in this table should have a unique domain name
representing a call agent.
Adding/deleting entry in this table is controlled by
'cMediaGwDomainNameConfigTable' of CISCO-MEDIA-GATEWAY-MIB:
1. Entry creation
An entry in this table is created when its associated entry
in the 'cMediaGwDomainNameConfigTable' is created with the
value of 'mgc(3)' in the cmgwConfigDomainNameEntity object.
The 'cmgwConfigDomainName' of the associated entry in the
'cMediaGwDomainNameConfigTable' will be taken as
'cMgcDomainName' of the new entry.
2. Entry deletion
An entry of this table is deleted when its associated entry
in 'cMediaGwDomainNameConfigTable' is deleted. |
| cMgcConfigTable | 1.3.6.1.4.1.9.9.321.1.1.1 | | not-accessible | This table is used for configuring MGC related parameters. |
| STR cMgcDomainName | 1.3.6.1.4.1.9.9.321.1.1.1.1.2 | SnmpAdminString | read-only | This object contains the same name as the one in the
'cMgcDomainName object' of the associated entry in
'cMediaGwDomainNameConfigTable'. |
| cMgcGroupConfig | 1.3.6.1.4.1.9.9.321.1.2 | | | |
| U32 cMgcGrpAssociationInfo | 1.3.6.1.4.1.9.9.321.1.2.1.1.3 | Unsigned32 | read-only | This object indicates the association between MGC group
and profile/gateway with bitmap format.
It is 1:N mapping, e.g., each profile or gateway can only
have one MGC group, but one MGC group can be associated
with multi profile and gateway.
The possible bit positions used in the bitmap are listed as
follows:
Bit profile/gateway value
---------------------------------------------------------------
0 profile 1 0: the MGC group is not associated with it
1: the MGC group is associated with it
1 profile 2 0: the MGC group is not associated with it
1: the MGC group is associated with it
2 profile 3 0: the MGC group is not associated with it
1: the MGC group is associated with it
3 profile 4 0: the MGC group is not associated with it
1: the MGC group is associated with it
...
...
30 profile 31 0: the MGC group is not associated with it
1: the MGC group is associated with it
31 gateway 0: the MGC group is not associated with it
1: the MGC group is associated with it
The value zero means the MGC Group is not associated with
any profile or gateway. |
| cMgcGrpEntry | 1.3.6.1.4.1.9.9.321.1.2.2.1 | | not-accessible | The entry is represented an association of a MGC with a MGC
group. |
| cMgcGrpGroup | 1.3.6.1.4.1.9.9.321.2.2.4 | | | A collection of objects providing MGC (in MGC group)
configuration information. |
| CMG cMgcGrpIndex | 1.3.6.1.4.1.9.9.321.1.2.1.1.1 | CMgcGroupIndex | not-accessible | A unique index to identify a MGC group. |
| I32 cMgcGrpMgcPreference | 1.3.6.1.4.1.9.9.321.1.2.2.1.1 | Integer32 | read-create | The preference of the MGC in the MGC group.
The lower the number the higher the preference. i.e. 1 will
have higher preference than 2. |
| CIS cMgcGrpMgcUdpPort | 1.3.6.1.4.1.9.9.321.1.2.2.1.2 | CiscoPort | read-create | The UDP port of the MGC in the MGC group.
The zero means there is no specific UDP port, the UDP port
in the protocol table will be used. |
| I32 cMgcGrpNumMgc | 1.3.6.1.4.1.9.9.321.1.2.1.1.2 | Integer32 | read-only | This object is used to indicate number of MGCs
to be associated with this MGC Group.
The value zero means there is no MGC in the MGC Group.
When the entry create, this value is set to 0.
Adding/deleting MGC to/from MGC group is through
cMgcGrpTable.
After a MGC added/deleted to/from this MGC group,
the value of this object will be incremented/decremented
by 1.
If the value of this object is zero, it is not allowed to
associate this MGC group with any profile or gateway. |
| I32 cMgcGrpNumProtocol | 1.3.6.1.4.1.9.9.321.1.2.1.1.4 | Integer32 | read-only | This object is used to indicate number of protocols
associated with this MGC group.
The value zero means there is no protocol associated with
this MGC group.
When the entry create, this object is set to 0.
The association between protocol and MGC group is configured
via cMgcGrpProtocolTable.
After a protocol is associated/de-associated with this
MGC group, this object will be incremented/decremented
by 1.
If this object is zero, it is not allowed to associate
the MGC group with any profile or gateway. |
| cMgcGrpParamEntry | 1.3.6.1.4.1.9.9.321.1.2.1.1 | | not-accessible | Entry of cMgcGrpParamTable.
Each entry includes the information shared by a group of MGC |
| cMgcGrpParamGroup | 1.3.6.1.4.1.9.9.321.2.2.3 | | | A collection of objects providing per MGC group
configuration information. |
| cMgcGrpParamTable | 1.3.6.1.4.1.9.9.321.1.2.1 | | not-accessible | This table containing information about MGC group related
profile/protocol association and parameters. |
| cMgcGrpProtocolEntry | 1.3.6.1.4.1.9.9.321.1.2.3.1 | | not-accessible | Entry of cMgcGrpProtocolTable. |
| cMgcGrpProtocolGroup | 1.3.6.1.4.1.9.9.321.2.2.5 | | | A collection of objects providing Protocol (in MGC
group) configuration information. |
| I32 cMgcGrpProtocolPreference | 1.3.6.1.4.1.9.9.321.1.2.3.1.1 | Integer32 | read-create | The preference of the Protocol in the MGC group.
The lower the number the higher the preference. i.e. 1 will
have higher preference than 2.
When gateway does not know which protocol is used by a call
agent the preference is used to make the decision.
But if gateway knows which protocol used by a call agent,
gateway will use that protocol (as long as the protocol is
added to the MGC group, irrespective of the preference) to
communicate with the call agent.
For example:
when gateway return a call agent message, gateway
will use the protocol which used by the call agent to
send the message. |
| ROW cMgcGrpProtocolRowStatus | 1.3.6.1.4.1.9.9.321.1.2.3.1.2 | RowStatus | read-create | This object is used to create a new row or modify
or delete an existing row in this table.
In order to add a protocol to MGC group, the following
condition need to be met:
Both the protocol and the MGC group should be existing
After the protocol added to the MGC group, the related
cMgcGrpNumProtocol will be incremented by 1.
In order to delete a protocol from MGC group, the following
condition need to be met:
The protocol to be deleted should not be the only one in the
MGC group when the MGC group is used by a gateway or a
profile.
This means if the value of cMgcGrpNumProtocol is equal to 1
and the value of cMgcGrpAssociationInfo is non-zero, this
protocol is the only one associated with the MGC group which
is still in use by gateways or some profiles. Therefore this
protocol can not be deleted.
After the protocol deleted from the MGC group, the related
cMgcGrpNumProtocol will be decremented by 1. |
| cMgcGrpProtocolTable | 1.3.6.1.4.1.9.9.321.1.2.3 | | not-accessible | cMgcGrpProtocolTable is used to add protocol to MGC group.
This table is designed to support multi protocol for MGC
group.
The MGC group to protocol is N to N mapping. |
| ROW cMgcGrpRowStatus | 1.3.6.1.4.1.9.9.321.1.2.2.1.3 | RowStatus | read-create | This object is used to create a new row or modify
or delete an existing row in this table.
In order to add an MGC to a MGC group, the following
conditions need to be met:
1. the MGC and the MGC group should be existing
2. at least one IP address is associated with the MGC if
the MGC is configured for internal resolution.
After the MGC added to the MGC group, the related
cMgcGrpNumMgc will be incremented by 1.
cMgcNumMgcGroups will be incremented by 1.
In order to delete an MGC from MGC group, the following
conditions need to be met:
The MGC is not the only MGC associated with the MGC
group if the MGC group is associated with gateway or
one or more profiles.
After the MGC added to the MGC group, the related
cMgcGrpNumMgc will be decremented by 1.
cMgcNumMgcGroups will be decremented by 1. |
| T/F cMgcGrpStateChangeNtfy | 1.3.6.1.4.1.9.9.321.1.2.1.1.5 | TruthValue | read-write | This object enables or disables sending gateway state
change notifications to call agent. |
| cMgcGrpTable | 1.3.6.1.4.1.9.9.321.1.2.2 | | not-accessible | This table represents the association of MGCs and MGC group.
Each MGC group consists of one or more MGCs and each MGC can
belong to one or more MGC groups.
Therefore it is an N to N mapping. |
| I32 cMgcIndex | 1.3.6.1.4.1.9.9.321.1.1.1.1.1 | Integer32 | not-accessible | A unique index to identify each MGC which will
communicate with this media gateway. |
| IP cMgcIpAddress | 1.3.6.1.4.1.9.9.321.1.1.2.1.3 | InetAddress | read-create | This object represents the configured IP address.
After adding the entry, this object can not be modified. |
| IPt cMgcIpAddressType | 1.3.6.1.4.1.9.9.321.1.1.2.1.2 | InetAddressType | read-create | This object is the IP address type for cMgcIpAddress. |
| cMgcIpConfigEntry | 1.3.6.1.4.1.9.9.321.1.1.2.1 | | not-accessible | Each entry represents an IP address which is associated
with the MGC(cMgcIndex).
When cMgcResolution is configured to 'externalOnly', user
cannot add/delete/modify any entry. |
| cMgcIpConfigTable | 1.3.6.1.4.1.9.9.321.1.1.2 | | not-accessible | This table contains MGC related IP addresses.
MGC index(cMgcIndex) is a part of index of this table,
so IP address in this table is automatically
associated with the MGC.
Multiple IP addresses can be associated with the same
MGC.
Under the same MGC (cMgcIndex is same)
all IP addresses are equivalent.
all IP addresses will share the same domain name:
'cMgcDomainName' in cMgcConfigTable. |
| I32 cMgcIpIndex | 1.3.6.1.4.1.9.9.321.1.1.2.1.1 | Integer32 | not-accessible | A unique index to identify the address of a specific
MGC. The MGC is represented by cMgcIndex. |
| cMgcIpMIBGroup | 1.3.6.1.4.1.9.9.321.2.2.2 | | | A collection of objects providing IP (in MGC)
configuration information. |
| I32 cMgcIpPreference | 1.3.6.1.4.1.9.9.321.1.1.2.1.4 | Integer32 | read-create | This object represents preference of the cMgcIpAddress
in the given MGC.
The lower the number the higher the preference. i.e. 1
will have higher preference than 2.
IF more than one IP have the same preference, gateway will
select them one by one. |
| ROW cMgcIpRowStatus | 1.3.6.1.4.1.9.9.321.1.1.2.1.5 | RowStatus | read-create | This object is used to create/modify/delete entry.
In order to delete an entry, following conditions need to be
met:
1. The MGC to which this IP address is being added,
should be existing.
2. The MGC's resolution (cMgcResolution) should be
'internal only'.
3. the mandatory object is cMgcIpAddress
After the IP address added to the MGC
the related 'cMgcNumIP' in MGC table will be incremented
by 1.
In order to delete an entry, following conditions need to be
met:
1. The MGC's resolution (cMgcResolution) should be
'internal only'.
2. The IP address should not be the only one in the MGC
while the MGC is associated with MGC group.
This means if the value of 'cMgcNumIP' is equal to 1
and the value of 'cMgcNumMgcGroups' is non-zero,
this IP address is the only one associated with the MGC
and it is possible that this IP address is also the
only one associated with MGC group. Therefore this
IP address can not be deleted.
After deleting the IP address from the MGC the related
'cMgcNumIP' in MGC table will be decremented by 1. |
| cMgcMIBCompliance | 1.3.6.1.4.1.9.9.321.2.1.1 | | | Compliance statement for CISCO-MGC-MIB. |
| cMgcMIBCompliances | 1.3.6.1.4.1.9.9.321.2.1 | | | |
| cMgcMIBConformance | 1.3.6.1.4.1.9.9.321.2 | | | |
| cMgcMIBGroup | 1.3.6.1.4.1.9.9.321.2.2.1 | | | A collection of objects providing per MGC basis
configuration information. |
| cMgcMIBGroups | 1.3.6.1.4.1.9.9.321.2.2 | | | |
| cMgcMibNotifications | 1.3.6.1.4.1.9.9.321.0 | | | |
| cMgcMibObjects | 1.3.6.1.4.1.9.9.321.1 | | | |
| I32 cMgcNumIP | 1.3.6.1.4.1.9.9.321.1.1.1.1.4 | Integer32 | read-only | This object is used to indicate number of IP addresses are
associated with this MGC.
The value zero means there is no IP address associated with
this MGC.
The MGC can not be deleted if the value of this object is
non-zero and cMgcResolution is configured to
'internalOnly'. |
| I32 cMgcNumMgcGroupsEx | 1.3.6.1.4.1.9.9.321.1.1.1.1.3 | Integer32 | read-only | This object is used to indicate number of MGC group with
which this MGC associated.
The value zero means this MGC is not associated
with any MGC Group.
If this value greater than zero, then the MGC entry
can not be deleted. |
| INT cMgcResolution | 1.3.6.1.4.1.9.9.321.1.1.1.1.5 | INTEGER | read-write | This object determines the kind of resolution to
be applied for this MGC.
'internalOnly' means that the gateway will not try to
resolve the IP address for this domain name using
external DNS name server.
'externalOnly' means the IP address for this domain name
will be resolved externally using DNS name server.
The request to change from 'internalOnly' to 'externalOnly'
will be rejected if the DNS name server is not available
for gateway.
The IP addresses related to the same MGC should have the
same cMgcResolution. The value of the MGC associated objects
in the cMgcIpConfigTable can not be modified by NMS if the
value of cMgcResolution for the MGC is 'externalOnly'.
The following are the behavior of changing the value of this
object.
[1] changing the value from 'externalOnly' to 'internalOnly'
1) precondition
MGC is not associated with any MGC group
(value of cMgcNumMgcGroups is zero).
2) behavior
If the value of this object is changed successfully,
all existing IP addresses in cMgcIpConfigTable that are
associated to the MGC will be removed automatically.
Note that MGW can't communicate with MGC if NMS does not
add static IP address into cMgcIpConfigTable for the MGC.
[2] changing the value from 'internalOnly' to 'externalOnly'
1) precondition
All MGC associated statically configured IP addresses
must be removed from cMgcIpConfigTable by NMS before
setting 'externalOnly' value to this object.
An inconsistentValue error is generated for setting
'externalOnly' value if the MGC associated IP addresses
are not removed.
2) behavior
After successfully setting 'externalOnly' value to this
object, the MGC domain name will be resolved by MGW
software using external DNS name server and the resulting
IP addresses will be added to cMgcIpConfigTable
automatically. |
