Avaya Configuring Traffic Filters and Protocol Prioritization Manuel d'utilisateur Page 22
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Configuring Traffic Filters and Protocol Prioritization
1-2
308645-15.0 Rev 00
Nortel Networks routers support two types of traffic filters:
• Inbound traffic filters act on packets that the router is receiving.
• Outbound traffic filters act on packets that the router is forwarding.
You can create traffic filters on the following router interfaces:
• Ethernet (10BASE-T and 100BASE-T)
• FDDI
• HSSI
• MCE1
• MCT1
• Synchronous
• Token ring
You can apply multiple traffic filters to a single interface. When more than one
filter applies to a packet, the order of filters determines the filtering result.
Inbound Traffic Filters
Inbound traffic filters act on packets arriving at a particular router interface. Most
sites use inbound traffic filters primarily for security, to restrict access to nodes in
a network.
When you configure inbound traffic filters, you specify a set of conditions that
apply to the traffic of a particular bridging or routing protocol. The Configuration
Manager supports inbound traffic filters for the following protocols:
• Transparent bridge (four encapsulation methods: Ethernet, 802.2 LLC, 802.2
LLC with SNAP, and Novell Proprietary)
• Native source route bridging (SRB)
• IP
• IPX
• XNS
• OSI
• DECnet Phase IV
• VINES
• DLSw
• LLC2 (APPN and LNM)
- Protocol Prioritization 1
- Trademarks 2
- Restricted Rights Legend 2
- Statement of Conditions 2
- Contents 5
- 308645-15.0 Rev 00 10
- Before You Begin 15
- Text Conventions 16
- Acronyms 17
- Hard-Copy Technical Manuals 20
- 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
- from the known reference 27
- Predefined Criteria 28
- Using Filter Templates 33
- Chapter 2 35
- Priority Queuing 37
- The Dequeuing Process 37
- Tuning Concepts 44
- Examples 48
- Chapter 3 51
- Ethernet Header 52
- IEEE 802.2 LLC Header 52
- 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
- User-Defined XNS Criteria 66
- XNS Actions 66
- Chapter 4 67
- Selecting Predefined Criteria 68
- Traffic Filters 69
- Predefined IP Criteria 71
- Data Link Reference Points 73
- IP Reference Points 75
- Selecting Actions 76
- Prioritizing Actions 77
- Dial Service Actions 77
- Chapter 5 79
- Specifying MAC Address Ranges 80
- SRB Functional MAC Addresses 81
- Table 5-3. SAP Codes 82
- Table 5-4. Frame Relay NLPIDs 83
- Table 5-5. PPP Protocol IDs 83
- Chapter 6 89
- Chapter 7 109
- Creating a Template 112
- Customizing Templates 117
- Chapter 8 133
- Using the BCC 133
- IP Traffic Filter Templates 134
- IP Inbound Traffic Filters 135
- Filter Precedence 136
- Filter Criteria and Actions 137
- Caution: 140
- Templates 141
- Criteria 142
- is a space-delimited list 144
- Specifying the Log Action 151
- Configuration Examples 152
- Chapter 9 155
- Attributes option: 158
- Prioritization 166
- Direct PVCs and SVCs 167
- ATM0060A 168
- ATM0061A 169
- Appendix A 171
- Appendix B 181
- TCP and UDP ports: 182
- Length Range 186
- Implementation Notes 191
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