Avaya Configuring Traffic Filters and Protocol Prioritization Uživatelský manuál Strana 27
- Strana / 162
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
Using Traffic Filters
117348-A Rev. A 1-7
A traffic filter criterion is defined by a byte length and an offset from common bit
patterns (reference points) in the data link or protocol header. The criterion
includes the length of the filtered pattern and an offset from the known reference
point. The traffic filter uses this information to locate which portion of a packet to
examine.
For bridged traffic, predefined criteria are part of the data link header. For routed
traffic, a predefined criterion can be part of the data link header or an upper-level
protocol header.
Inbound traffic filter criteria use reference points in the upper-level protocol
header. You select inbound criteria based on the protocol of the incoming traffic.
Outbound traffic filters use reference points in only the IP or DLSw protocol
headers. You select outbound criteria based on the WAN protocol configured on
the interface (transparent bridge, SRB, PPP, or Frame Relay).
Predefined and User-Defined Criteria
The Configuration Manager provides a selection of default filter criteria
(predefined criteria) for both inbound and outbound traffic filters. Predefined
criteria consist of predefined offsets and lengths from common reference points.
You can also define a criterion based on bit patterns in a packet header that are not
supported in predefined criteria (user-defined criteria). To apply user-defined
criteria, you specify the bit length and offset from a supported reference point.
Cha
pter 3 lists the supported reference points for inbound traffic filters. Chapter 4
lists the reference points for outbound traffic filters.
To fit your site’s traffic patterns, you can use a combination of predefined and
user-defined criteria in up to 32 traffic filters on each interface.
- 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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