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Ethernet and Token Ring Special Filter Databases 4-49
Bridging
To delete an address:
1. Click to highlight the address entry in the Address Entry panel that you wish to
delete from the filtering database.
2. Click on .
Clearing All Permanent, Static, or Dynamic Entries
To erase all Permanent, Static, or Dynamic entries from the Filtering Database,
click on the associated button in the upper portion of the window.
Ethernet and Token Ring Special Filter Databases
While the Filtering Database deÞnes Þlters for all packets from a particular source
address, the Ethernet Special Filter Database and the Token Ring Special Filtering
Databases allow you to Þlter packets through an Ethernet or a Token Ring bridge,
respectively, using a special Þltering scheme.
When a packet is received at an Ethernet bridging interface, it is Þrst checked
against the Ethernet Special Filter Database to see if any Þltering action applies to
it. Because of this, an entry in the Ethernet Special Filter Database takes
precedence over a Þlter entry in the Filtering Database that would otherwise
apply to the packet.
The Ethernet Special Filter Database allows you to:
¥ DeÞne and save a Þlter based on a combination of Source Address, Destination
Address, Ethernet Data Type and Data (including the offset).
¥ Specify the receive ports at which the Þlter will take effect.
¥ Specify the forwarding/Þltering action at each bridging port of the device.
When checking for Transparent Þltering information, the bridge Þrst checks the
Token Ring Special Filter Database to see if any Þltering action applies to it.
Because of this, a Þlter entry in the Token Ring Special Filter Database takes
precedence over a Þlter entry in the Filtering Database that would otherwise
apply to the packet.
Looking at each enabled Þlter, starting with the lowest numbered Þlter, the bridge
compares the following Þelds to the corresponding Þelds in the received packet:
¥ Destination address
¥ Source address
¥ Ethernet or Token Ring data type
¥ Up to 16 hex integers (64 bytes) of the data Þeld
In addition, a Þlter can also specify at which port or ports the packet must be
received for the Þlter to be applicable. If a received packet matches all the contents
of an enabled Þlter, the bridge forwards the packet to the deÞned set of ports.
- CSX200 and CSX400 1
- User’s Guide 1
- Virus Disclaimer 3
- Restricted Rights Notice 5
- Chapter 4 Bridging 8
- Contents 10
- Introduction 11
- HSIM-W6 and HSIM-W84 12
- Related Manuals 13
- Software Conventions 14
- Using the Mouse 15
- Using Window Buttons 16
- Getting Help 17
- CSX200 and CSX400 Firmware 18
- CSX200 and 400 Chassis View 19
- Viewing Chassis Information 20
- Front Panel Information 21
- Menu Structure 22
- The Chassis Manager Window 27
- Viewing Hardware Types 28
- Managing the Device 29
- 2-12 Managing the Device 30
- Managing the Device 2-13 31
- 2-14 Managing the Device 32
- Managing the Device 2-15 33
- 2-16 Managing the Device 34
- Managing the Device 2-17 35
- (Received only) 35
- (Received only) 35
- (Transmit only) 35
- Enabling and Disabling Ports 36
- Managing the Device 2-19 37
- 2-20 Managing the Device 38
- WAN Configuration 39
- About the CSX400 40
- CSX WPIMs 41
- 3-4 CSX WPIMs 42
- WAN Logical View 43
- Changing WAN Logical Settings 44
- WAN Logical View 3-7 45
- 3-8 WAN Logical View 46
- About Transparent Bridging 48
- About Source Route Bridging 48
- Bridging Basics 4-3 49
- 4-4 Bridging Basics 50
- Bridging Basics 4-5 51
- The Bridge Status Window 54
- The Bridge Status Window 4-9 55
- 4-10 The Bridge Status Window 56
- The Bridge Status Window 4-11 57
- 4-12 The Bridge Status Window 58
- The Bridge Status Window 4-13 59
- Bridge Statistics 61
- 4-16 Bridge Statistics 62
- Bridge Statistics 4-17 63
- 4-18 Bridge Statistics 64
- Bridge Statistics 4-19 65
- 4-20 Bridge Statistics 66
- Bridge Statistics 4-21 67
- 4-22 Bridge Statistics 68
- The CSMACD Statistics Window 69
- 4-24 Bridge Statistics 70
- Bridge Statistics 4-25 71
- 4-26 Bridge Statistics 72
- Bridge Statistics 4-27 73
- 4-28 Bridge Statistics 74
- Bridge Statistics 4-29 75
- 4-30 Bridge Statistics 76
- Bridge Statistics 4-31 77
- Source Route Statistics 78
- Bridge Statistics 4-33 79
- 4-34 Bridge Statistics 80
- Bridge Spanning Tree 81
- Bridge Level Fields 82
- Bridge Spanning Tree 4-37 83
- Bridge Port Level Fields 84
- Bridge Spanning Tree 4-39 85
- 4-40 Bridge Spanning Tree 86
- Bridge Spanning Tree 4-41 87
- Filtering Database 88
- Filtering Database 4-43 89
- 4-44 Filtering Database 90
- Filtering Database 4-45 91
- 4-46 Filtering Database 92
- Filtering Database 4-47 93
- 4-48 Filtering Database 94
- Bridging 100
- Changing the Receive Ports 101
- Source Route Configuration 103
- Information on Source Routing 104
- Making and Setting Changes 109
- Setting the Aging Time 111
- Duplex Modes 112
- The Duplex Modes Window 113
- 4-68 Duplex Modes 114
- Duplex Modes 4-69 115
- SONET Port Configuration 120
- SONET Port Configuration 4-75 121
- SONET/SDH Statistics Window 122
- 4-78 SONET Port Configuration 124
- SONET Port Configuration 4-79 125
- 4-80 SONET Port Configuration 126
- SONET Port Configuration 4-81 127
- Token Ring Bridge Mode 129
- Defining the Bridge Modes 130
- Defining the Bridge Method 136
- Setting the Bridge Method 137
- Configuring SmartTrunking 142
- Configuring SmartTrunking 4-97 143
- 4-98 Configuring SmartTrunking 144
- Configuring SmartTrunking 4-99 145
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