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Configuring Traffic Filters and Protocol Prioritization
1-6 117348-A Rev. A
Traffic Filter Components
The Configuration Manager creates traffic filters from template files that contain
filtering information. Traffic filter templates consist of three components:
• Criteria
The portion of the incoming packet, frame, or datagram header to be
examined
• Ranges
Numeric values (often addresses) to be compared with the contents of
examined packets
• Actions
What happens to packets that match the criteria and ranges specified in a filter
To create a traffic filter, you apply a filter template to a particular router interface.
T
able 1-5 (at the end of this chapter) summarizes the inbound and outbound traffic
filter criteria and actions supported on specific interfaces.
Criteria
A filter criterion is the portion of a packet, frame, or datagram header to be
examined. You can break down any packet into at least three components:
• The DLC (or data link) header. Examples of data link header types include:
-- Token ring (802.5)
-- Ethernet V.2 and IEEE 802.3
-- FDDI
-- PPP and Bay Networks Standard
-- Frame Relay
• The upper-level protocol header. Examples of protocol header types include:
-- IP and TCP
-- Source route bridging (SRB)
-- DLSw
• User data
- Configuring Traffic Filters 1
- Bay Networks Software License 3
- Contents 5
- 117348-A Rev. A 11
- About This Guide 15
- Conventions 16
- Acronyms 17
- Bay Networks Customer Service 19
- How to Get Help 20
- Chapter 1 21
- Using Traffic Filters 21
- Inbound Traffic Filters 22
- Outbound Traffic Filters 23
- Filtering Strategies 24
- Combine Filters 25
- Build a Firewall 25
- Traffic Filter Components 26
- Using Traffic Filters 27
- Predefined Criteria 28
- 1-10 117348-A Rev. A 30
- 1-12 117348-A Rev. A 32
- Using Filter Templates 33
- 1-14 117348-A Rev. A 34
- Chapter 2 35
- Priority Queuing 36
- The Dequeuing Process 37
- 117348-A Rev. A 2-5 39
- 2-6 117348-A Rev. A 40
- 117348-A Rev. A 2-7 41
- 2-8 117348-A Rev. A 42
- Tuning Concepts 44
- 117348-A Rev. A 2-11 45
- Queue Size Example 46
- Reconfiguring Queue Size 46
- Examples 47
- 2-14 117348-A Rev. A 48
- 117348-A Rev. A 2-15 49
- Chapter 3 51
- Transparent Bridge Actions 54
- Predefined SRB Criteria 55
- User-Defined SRB Criteria 56
- SRB Actions 56
- Predefined DECnet Criteria 57
- User-Defined DECnet Criteria 57
- DECnet Actions 57
- DLSw Criteria and Actions 58
- IP Criteria and Actions 59
- IP Actions 60
- IPX Criteria and Actions 61
- LLC2 Criteria and Actions 62
- OSI Criteria and Actions 63
- VINES Criteria and Actions 64
- XNS Criteria and Actions 65
- Chapter 4 67
- Selecting Predefined Criteria 68
- Predefined IP Criteria 70
- 117348-A Rev. A 4-5 71
- Data Link Reference Points 72
- IP Reference Points 74
- Selecting Actions 75
- Prioritizing Actions 76
- Dial Service Actions 76
- 117348-A Rev. A 4-11 77
- Chapter 5 79
- Specifying MAC Address Ranges 80
- SRB Functional MAC Addresses 81
- 5-4 117348-A Rev. A 82
- Table 5-3. SAP Codes 82
- Table 5-4. Frame Relay NLPIDs 83
- Table 5-5. PPP Protocol IDs 83
- 5-6 117348-A Rev. A 84
- 5-8 117348-A Rev. A 86
- 88
- 88
- Chapter 6 89
- 6-2 117348-A Rev. A 90
- 117348-A Rev. A 6-3 91
- 117348-A Rev. A 6-5 93
- 6-8 117348-A Rev. A 96
- 6-10 117348-A Rev. A 98
- 117348-A Rev. A 6-11 99
- 6-12 117348-A Rev. A 100
- 117348-A Rev. A 6-13 101
- 6-14 117348-A Rev. A 102
- 6-16 117348-A Rev. A 104
- 6-18 117348-A Rev. A 106
- 6-20 117348-A Rev. A 108
- Chapter 7 109
- 7-2 117348-A Rev. A 110
- 117348-A Rev. A 7-3 111
- Creating a Template 112
- 113
- 7-6 117348-A Rev. A 114
- 7-8 117348-A Rev. A 116
- Customizing Templates 117
- 7-10 117348-A Rev. A 118
- 117348-A Rev. A 7-11 119
- 7-12 117348-A Rev. A 120
- Drop_Telnet_S42 121
- SRB_DSAP_hiQ 121
- 7-14 117348-A Rev. A 122
- 7-16 117348-A Rev. A 124
- 7-18 117348-A Rev. A 126
- 7-20 117348-A Rev. A 128
- 117348-A Rev. A 7-21 129
- 7-22 117348-A Rev. A 130
- 117348-A Rev. A 7-23 131
- Appendix A 133
- 134
- 117348-A Rev. A A-3 135
- A-4 117348-A Rev. A 136
- 117348-A Rev. A A-5 137
- A-6 117348-A Rev. A 138
- 139
- 140
- Appendix B 141
- 142
- (continued) 143
- B-4 117348-A Rev. A 144
- filtering goals 145
- B-8 117348-A Rev. A 148
- Configuring DLSw 149
- Services 149
- (continued) 149
- B-10 117348-A Rev. A 150
- Implementation Notes 151
- B-12 117348-A Rev. A 152
- 117348-A Rev. A B-13 153
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