Snmp Ifindex Mib Object Values; Configuring Snmp - Cisco WS-C3750-48PS-S Software Configuration Manual

Configuring SNMP

SNMP ifIndex MIB Object Values

In an NMS, the IF-MIB generates and assigns an interface index (ifIndex) object value that is a unique
number greater than zero to identify a physical or a logical interface. When the switch reboots or the
switch software is upgraded, the switch uses this same value for the interface. For example, if the switch
assigns a port 2 an ifIndex value of 10003, this value is the same after the switch reboots.
The switch uses one of the values in
Table 30-3 ifIndex Values
Interface Type
SVI
EtherChannel
Loopback
Tunnel
Physical (such as Gigabit Ethernet or SFP
Null
1. SVI = switch virtual interface
2. SFP = small form-factor pluggable
The switch might not use sequential values within a range.
Note
Configuring SNMP
This section describes how to configure SNMP on your switch. It contains this configuration
information:
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Catalyst 3750 Switch Software Configuration Guide
30-6
1
Default SNMP Configuration, page 30-7
SNMP Configuration Guidelines, page 30-7
Disabling the SNMP Agent, page 30-8
Configuring Community Strings, page 30-8
Configuring SNMP Groups and Users, page 30-10
Configuring SNMP Notifications, page 30-12
Setting the Agent Contact and Location Information, page 30-15
Limiting TFTP Servers Used Through SNMP, page 30-16
SNMP Examples, page 30-16
Table 30-3 to assign an ifIndex value to an interface:
2
-module interfaces)
Chapter 30 Configuring SNMP
ifIndex Range
1–4999
5000–5012
5013–5077
5078–5142
10000–14500
14501
78-16180-02