Cisco Cisco 1900 2900 3900 Series 4-Port Gigabit Ethernet HS-WIC with PoE
Configuring Cisco EHWIC and 880G for 3G (EV-DO Rev A)
Configuring EHWIC-3G-EVDO-x Cards and C880G-x-K9 ISRs
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Configuring Cisco EHWIC-3G-EVDO-x
OL-24266-03
Configuring EHWIC-3G-EVDO-x Cards and C880G-x-K9 ISRs
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Overview of SNMP MIBs
Simple Network Management Protocol (SNMP) development and use is centered around the MIB. An
SNMP MIB is an abstract database that is a conceptual specification for information that a management
application may read and modify in a certain form. This does not imply that the information is kept in
the managed system in that same form. The SNMP agent translates between the internal data structures
and formats of the managed system and the external data structures and formats defined for the MIB.
SNMP MIB is an abstract database that is a conceptual specification for information that a management
application may read and modify in a certain form. This does not imply that the information is kept in
the managed system in that same form. The SNMP agent translates between the internal data structures
and formats of the managed system and the external data structures and formats defined for the MIB.
The SNMP MIB is conceptually a tree structure with conceptual tables. Cisco 3G MIB is discussed in
more detail in the next section. Relative to this tree structure, the term MIB is used in two senses. In one
sense, it is actually a MIB branch, usually containing information for a single aspect of technology, such
as a transmission medium or a routing protocol. A MIB used in this sense is more accurately called a
MIB module and is usually defined in a single document. In the other sense, a MIB is a collection of
such branches. Such a collection might comprise, for example, all the MIB modules implemented by a
given agent or the entire collection of MIB modules defined for SNMP.
more detail in the next section. Relative to this tree structure, the term MIB is used in two senses. In one
sense, it is actually a MIB branch, usually containing information for a single aspect of technology, such
as a transmission medium or a routing protocol. A MIB used in this sense is more accurately called a
MIB module and is usually defined in a single document. In the other sense, a MIB is a collection of
such branches. Such a collection might comprise, for example, all the MIB modules implemented by a
given agent or the entire collection of MIB modules defined for SNMP.
A MIB is a tree where the leaves are individual items of data called objects. An object may be, for
example, a counter or a protocol status. MIB objects are also sometimes called variables.
example, a counter or a protocol status. MIB objects are also sometimes called variables.
MIBs can be classified into three categories:
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IF MIBs—Describe interface statistics.
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Cisco-Entity-Vendortype-OID-MIB.my—ENTITY-MIBs are used to provide general hardware type
for both the EHWIC and the modem. The CISCO-ENTITY-VENDORTYPE-OID-MIB assigns
OIDs for Cisco components (including the HWICs and the modems). The OIDs are then used as the
values of entPhysicalVendorType in the ENTITY-MIB.
for both the EHWIC and the modem. The CISCO-ENTITY-VENDORTYPE-OID-MIB assigns
OIDs for Cisco components (including the HWICs and the modems). The OIDs are then used as the
values of entPhysicalVendorType in the ENTITY-MIB.
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Cisco 3G WAN MIBs—Cellular or wireless-specific MIBs.
3G Cellular WAN MIB Architecture
This section describes the MIB definition and implementation support for Cisco's cellular 3G WAN
products on the customer premises equipment (CPE) end.
products on the customer premises equipment (CPE) end.
The 3G Cellular WAN MIB supports both CDMA and GSM set of cellular standards and includes the
following technologies:
following technologies:
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GSM—GPRS/EDGE/UMTS/HSPA
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CDMA—1xRTT/EVDO RevA/EVDO RevB
The 3G cellular MIB uses indexes from the cellular interface and from the modem. You can obtain the
interface index using IF-MIBs and the modem index using the ENTITY MIBs.
interface index using IF-MIBs and the modem index using the ENTITY MIBs.