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RMON Overview 65
Chapter 6
Remote Monitoring
Remote Monitoring (RMON) allows network devices to exchange network
monitoring data. The following topics are discussed in this chapter:
RMON Overview on page 65
RMON Group 1—Statistics on page 66
RMON Group 2—History on page 67
RMON Group 3—Alarms on page 68
RMON Group 9—Events on page 69
RMON Overview
RMON allows the switch to track events and trigger alarms when a threshold is
reached and to notify administrators by issuing a syslog message or SNMP trap.
The RMON MIB provides an interface between the RMON agent on the switch and
an RMON management application. The RMON MIB is described in RFC 1757.
The RMON standard defines objects that are suitable for the management of
Ethernet networks. The RMON agent continuously collects statistics and proactively
monitors switch performance. RMON allows you to monitor traffic flowing through
the switch.
The switch supports the following RMON Groups, as described in RFC 1757:
Group 1: Statistics
Group 2: History
Group 3: Alarms
Group 9: Events
- Configuration Guide 1
- Table of Contents 3
- Part 2 Appendixes 6
- Part 3 Indexes 6
- List of Figures 7
- List of Tables 10
- About This Guide 11
- Documentation Conventions 12
- Documentation Feedback 13
- Requesting Technical Support 13
- Opening a Case with JTAC 14
- Accessing the Switch 17
- Using Telnet 19
- Using SNMP 21
- SNMPv1, SNMPv2 21
- Default Configuration 22
- User Configuration 22
- Configuring SNMP Trap Hosts 23
- Securing Access to the Switch 24
- Switch User Accounts 27
- TACACS+ Authentication 28
- Secure Shell 31
- End User Access Control 32
- User Access Control 33
- Listing Current Users 34
- Chapter 2 35
- VLAN Numbers 36
- PVID Numbers 36
- VLAN Tagging 37
- 24 VLAN Tagging 38
- VLAN Tagging 25 39
- Chapter 2: VLANs 39
- VLAN Configuration Rules 40
- Component Description 41
- Private VLANs 43
- Private VLAN Ports 43
- Spanning Tree Protocol 45
- Bridge Priority 46
- Port Priority 47
- Port Path Cost 47
- Creating a VLAN 48
- Rules for VLAN Tagged Ports 48
- Rapid Spanning Tree Protocol 49
- Port State Changes 49
- Port Type and Link Type 50
- RSTP Configuration Guidelines 50
- RSTP Configuration Example 50
- Per VLAN Rapid Spanning Tree 51
- Configuring PVRST 52
- MSTP Region 53
- Common Internal Spanning Tree 53
- MSTP Configuration Guidelines 53
- Fast Uplink Convergence 55
- Configuration Guidelines 56
- Ports and Trunking 57
- Built-In Fault Tolerance 58
- TRUNK 3: PORTS 2, 9, AND 16 59
- TRUNK 1: PORTS 1, 11, AND 18 59
- Chapter 4: Ports and Trunking 61
- Actor Switch Partner Switch 1 62
- LACP Configuration Guidelines 63
- Configuring LACP 63
- (3 seconds), instead 64
- Quality of Service 65
- Permit/Deny 66
- MAC Extended ACLs 67
- IP Standard ACLs 67
- IP Extended ACLs 68
- Understanding ACL Priority 69
- Assigning ACLs to a Port 70
- Viewing ACL Statistics 70
- ACL Configuration Examples 70
- Using ACL Filters 57 71
- Chapter 5: Quality of Service 71
- Using ACL Filters 72
- Using Storm Control Filters 73
- Broadcast Storms 73
- Configuring Storm Control 73
- Per Hop Behavior 75
- QoS Levels 76
- DSCP Mapping 76
- Priority 77
- VLAN Identifier (VID) 77
- Queuing and Scheduling 78
- Remote Monitoring 79
- RMON Group 1—Statistics 80
- RMON Group 2—History 81
- History MIB Object ID 81
- Configuring RMON History 81
- RMON Group 3—Alarms 82
- Alarm MIB Objects 82
- Configuring RMON Alarms 82
- RMON Group 9—Events 83
- 70 RMON Group 9—Events 84
- Chapter 7 85
- FastLeave 86
- IGMPv3 Snooping 87
- Static Multicast Router 88
- Detection 89
- Failure Detection Pair 90
- UFD Configuration Guidelines 90
- UFD Configuration Example 91
- Monitoring UFD 91
- 78 Monitoring UFD 92
- Appendixes 93
- 80 Appendixes 94
- Appendix A 95
- Configuring Port Mirroring 96
- Index on page 85 97
- 84 Indexes 98
- Index 85 99
- 86 Index 100
- Index 87 101
- 88 Index 102
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