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Important OSM/ESM Functions
2-8
Industrial Ethernet OSM/ESM Network Management
C79000-G8976-C137-08
2.6 Locked Ports
Locking
Locking is used to make sure that only packets from authorized stations are
passed on by the OSM/ESM.
Lock Enabled
If the lock enabled function is activated for an OSM/ESM port, the OSM/ESM only
passes on packets received at this port if the source address exists in the FDB
table. All other packets are discarded. Learning new addresses is also disabled on
this port; in other words, if a packet with a new source address is received, this
address is not included in the FDB table of the OSM/ESM.
Addresses that have already been learned, are deleted automatically if aging is
activated (see Section 2.5.2). A restart will force all learned addresses to be
deleted immediately.
Lock Disabled
If lock disabled (default setting) is set, the OSM/ESM passes on packets with an
unknown source address received at a port (in other words an address that does
not exist in the FDB table of the OSM/ESM). New source addresses are
automatically learned on this port; in other words, they are entered in the FDB
table.
Programming Authorized Nodes
If you only want the packets from certain authorized nodes to be passed on by the
OSM/ESM, follow the steps outlined below:
1. Enter the MAC addresses of these nodes and the number of the port to which
they are connected in the FDB table of the OSM/ESM using WBM.
2. Set the port to lock enabled.
3. Run an OSM/ESM restart using WBM to delete the learned entries in the FDB
table and to save the configuration. The static addresses in the FDB table are
retained when you restart.
Note
S The ring ports cannot be configured with Lock enabled.
S If a port is used for a redundant network link (master and standby link), it must
not be configured with Lock enabled.
- Purpose of the Manual 6
- Scope of the Manual 6
- Notes for the Reader 7
- Finding Information 7
- Target Group 7
- Audience 8
- Further Support 9
- C79000-G8976-C137-08 10
- Introduction 13
- 1.1.1 Function 14
- Protocol 15
- Getting Information 15
- Making Settings 15
- 1.2.1 Signaling Concept 17
- 1.2.2 Network Management 17
- 1.3 Command Interpreter (CLI) 20
- 1.4 Setting the IP Addresses 20
- Important OSM/ESM Functions 21
- 2.1 Autonegotiation 22
- 2.2 Autocrossover 23
- Defaults 24
- Protected Settings 24
- Restore Factory Defaults 24
- 2.6 Locked Ports 28
- 2.7 Mirroring 29
- 2.8 Traps 30
- 2.9 E-Mail Function 31
- 2.10 Event Log Table 32
- 2.12 Flow Control 34
- 2.13 BOOTP/DHCP 35
- 2.15 TELNET 37
- Redundant Coupling 38
- 1 Fiber-optic cable (FO) 39
- 2 ITP XP standard cable 9/9 39
- 2.17 Observer Function 41
- Command Interpreter (CLI) 44
- 3.1 Overview 45
- 3.2 Password Protection 45
- 3.3 Installing the CLI 46
- 3.4 Login 47
- 3.5 CLI Commands 48
- CLI Menus and Description 49
- Start Menu 50
- System Menu 51
- Command CommentDescription 52
- OSM/ESM Menu 53
- Agent Menu 55
- Switch Menu 58
- Port Menu 60
- Service Menu 61
- Web-Based Management (WBM) 62
- 4.1 General Introduction 63
- 4.2 Requirements 64
- 4.3 Connecting 65
- Figure 4-2 “Login” Window 66
- Figure 4-3 WBM Startup Window 67
- Device Status Field 69
- Menu Tree 69
- Data Window 69
- 4.6 Management Menus 70
- 4.7 System 71
- 4.7.1 System Version Numbers 72
- Hardware 73
- Order Number 73
- Boot software 73
- Operative software 73
- MAC Address 73
- 4.7.2 System Restart 74
- 4.7.3 System Factory Defaults 75
- (restoring the defaults) 75
- 4.7.4 System Save & Load 76
- Log Table File 77
- Firmware File 77
- 4.7.5 Event Log Table 78
- 4.8 OSM/ESM Status 79
- Standby Status 80
- RM Status 80
- Power Line 1 80
- Power Line 2 80
- Fault Status 81
- 4.8.1 OSM/ESM Fault Mask 82
- Set New Values 83
- 4.8.2 OSM/ESM Standby Mask 84
- 4.8.3 OSM/ESM Counters 86
- 4.9 Agent Features 88
- E-Mail Address 92
- SMTP Server IP Address 92
- “From” Field 93
- 4.9.5 Agent ARP Table 95
- 4.9.6 Agent SNMP Counters 96
- 4.10 Switch Features 97
- Flow Control 98
- Set New Value 98
- 4.10.1 Current FDB Table 99
- Start with MAC 100
- Clear Address 100
- Next Values 100
- 4.10.2 Static FDB Table 101
- Entering a Multicast Address 105
- 4.11 Port Status 106
- Flow Ctrl 107
- 4.11.1 Port Configuration 108
- 4.12 Statistics Counters 110
- 4.12.1 Packet Size 111
- 4.12.2 Packet Type 112
- 4.12.3 Packet Error 113
- SNMP and RMON 114
- 5.1 SNMP 115
- 5.2 RMON 116
- 6.1 General Introduction 118
- Figure 6-1 119
- Figure 6-2 120
- Figure 6-3 120
- Figure 6-4 121
- Requirements 122
- Notes on Troubleshooting 124
- Internet Browser Settings 128
- Figure A-2 Trusted Sites 130
- A.2 Netscape Communicator 6.2 138
- Serial Port of the OSM/ESM 140
- Figure B-1 Properties Tab 142
- References 143
- Abbreviations/Acronyms 145
- Glossary 148
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