Cisco Nexus 9000 Series - SNMP and RMON Support; Using the PCAP SNMP Parser

Destination port: 1985 (1985)
Length: 28
Checksum: 0x8ab9 [correct]
[Good Checksum: True]
[Bad Checksum: False]
Cisco Hot Standby Router Protocol
Version: 0
Op Code: Hello (0)
State: Active (16)
Hellotime: Default (3)
Holdtime: Default (10)
Priority: 105
Group: 1
Reserved: 0Authentication Data: Default (cisco)
Virtual IP Address: 172.28.230.1 (172.28.230.1)
1 packets captured
This example uses a display filter to show only those HSRP packets that have an active HSRP state:
switch(config)# ethanalyzer local interface mgmt display-filter "hsrp.state==Active"
limit-captured-frames 2
Capturing on eth1
2013-05-18 14:35:41.443118 172.28.230.3 -> 224.0.0.2 HSRP Hello (state Active)
2013-05-18 14:35:44.326892 172.28.230.3 -> 224.0.0.2 HSRP Hello (state Active)
2 packets captured
SNMP and RMON Support
Cisco NX-OS provides extensive SNMPv1, v2, and v3 support, including Management Information Bases
(MIBs) and notifications (traps and informs).
The SNMP standard allows any third-party applications that support the different MIBs to manage and monitor
Cisco NX-OS.
SNMPv3 provides extended security. Each device can be selectively enabled or disabled for SNMP service.
In addition, each device can be configured with a method of handling SNMPv1 and v2 requests.
Cisco NX-OS also supports Remote Monitoring (RMON) alarms and events. RMON alarms and events
provide a mechanism for setting thresholds and sending notifications based on changes in network behavior.
The Alarm Group allows you to set alarms. Alarms can be set on one or multiple parameters within a device.
For example, you can set an RMON alarm for a specific level of CPU utilization on a device. The EventGroup
allows you to configure events that are actions to be taken based on an alarm condition. The types of events
that are supported include logging, SNMP traps, and log-and-trap.
For more information about configuring SNMP and RMON, see the Cisco Nexus 9000 Series NX-OS System
Management Configuration Guide.
Using the PCAP SNMP Parser
The PCAP SNMP parser is a tool to analyze SNMP packets captured in .pcap format. It runs on the switch
and generates a statistics report for all of the SNMP get, getnext, getbulk, set, trap, and response requests sent
to the switch.
To use the PCAP SNMP parser, use one of the following commands:
Cisco Nexus 9000 Series NX-OS Troubleshooting Guide, Release 7.x
104
Troubleshooting Tools and Methodology
SNMP and RMON Support