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10-4
Cisco 819 Series Integrated Services Routers Software Configuration Guide
OL-23590-02
Chapter 10 Configuring the Ethernet Switches
Overview of SNMP MIBs
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.
For a list of MIBs supported on Cisco 819 4G LTE routers, see the “SNMP MIBs” section of Configuring
Cisco 4G LTE Wireless WAN EHWIC.
MIBs were modified in IOS release 15.2(4)M1 to support Cisco 819HGW and Cisco 819HWD SKUs.
Table 10-1 lists the MIBs for Cisco 819 ISRs.
BRIDGE-MIB for Layer 2 Ethernet Switching
The Layer 2 Ethernet Switching Interface BRIDGE-MIB is supported in the Cisco 819 platforms. The
BRIDGE-MIB enables the user to know the Media Access Control (MAC) addresses and spanning tree
information of the Ethernet switch modules. The user can query the MIB agent using the SNMP protocol
and get the details of Ethernet switch modules such as MAC addresses of each interfaces and spanning
protocol information.
The Bridge-MIB uses the following approaches to get the L2 layers BRIDGE-MIB information:
• Community-string-based approach
• Context-based approach
In the community-string-based approach, one community string is created for each VLAN. Based on the
query, the respective VLAN MIB is displayed.
To get the BRIDGE-MIB details, use the snmp-server community public RW command in the
configuration mode.
Router(config)#snmp-server community public RW
Ta b l e 10-1 MIBs for Cisco 819 ISRs
MIBs MIBs Link
CISCO-PRODUCTS-MIB To locate and download MIBs for selected
platforms, Cisco IOS releases, and feature sets,
use Cisco MIB Locator found at the following
URL:
http://tools.cisco.com/ITDIT/MIBS/servlet/index
CISCO-ENTITY-VENDORTYPE-OID-MIB
OLD-CISCO-CHASSIS-MIB
CISCO-WAN-3G-MIB