3Com 8807 - Page 415

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RPF Mechanism for IP Multicast Packets 415

address is the RP address of the shared tree. A multicast packet arriving at the

router will be forwarded according to the multicast forwarding entry if it passes

the RPF check, or else, it will be discarded.

Main Page

Default Chapter1
- Default Chapter1
  - Configuration Guide1
  - Table of Contents3
- About this Guide15
  - Conventions15
  - Related Documentation16
Product Overview17
- Function Features18
Command21
- Command Line View21
- Features and Functions of Command Line29
Logging in to Switch33
- Setting up Configuration Environment through the Console Port33
- Setting up Configuration Environment through Telnet34
- Setting up Configuration Environment through Modem Dial-Up37
User Interface Configuration39
- User Interface Overview39
- User Interface Configuration40
- Displaying and Debugging User Interface48
Management Interface Overview49
- Management Interface Configuration49
- Configuration File Management51
CONFIGURATION FILE MANAGEMENT Configuration File Management51
7 Vlan C Onfiguration55
- VLAN Overview55
- Configuring VLAN55
Vlan C55
- Configuring Protocol-Based VLAN57
- Configuring IP Subnet-Based VLAN58
- Configuring a Super VLAN61
  - Network Diagram63
  - Configuration Procedure63
- Isolate-User-VLAN Overview65
- Isolate-Use-Vlan Configuration Task65
- Displaying and Debugging an Isolate-User-VLAN67
- Isolate-User-VLAN Configuration Example68
Ip Address71
- Introduction to IP Addresses71
- Configuring IP Address73
- Displaying IP Address76
- IP Address Configuration Example76
- Troubleshooting IP Address Configuration77
Ip Performance79
- Configuring IP Performance79
- Displaying and Debugging IP Performance79
- Troubleshooting IP Performance81
Garp&Gvrp Configuration83
- Configuring GARP83
- Configuring GVRP85
Ethernet Port Configuration89
- Ethernet Port Overview89
- Setting the Interval of Performing Statistics on Ports92
- Displaying and Debugging Ethernet Port98
- Ethernet Port Configuration Example98
- Ethernet Port Troubleshooting99
Link Aggregation101
- Overview101
- Link Aggregation Configuration104
- Displaying and Debugging Link Aggregation108
- Link Aggregation Configuration Example108
Port111
- Port Isolation Overview111
- Configuration Tasks111
- Port Isolation Configuration Example113
Mac Address Table Management115
- MAC Address Table Management Overview115
- MAC Address Table Management Configuration116
- Maximum MAC Address Number Learned by Ethernet Port and Forwarding Option Configuration117
- Configuring Max Number of MAC Addresses that Can be Learned in a VLAN118
- Displaying and Debugging MAC Address Tables119
- Resetting MAC Addresses119
- MAC Address Table Management Configuration Example119
Mstp Region - Configuration121
- Introduction to MSTP121
- Configuring MSTP132
- Displaying and Debugging MSTP150
- Typical MSTP Configuration Example152
Digest Snooping Configuration155
- Introduction to Digest Snooping155
Fast Transition159
- Introduction159
- Configuring Fast Transition160
20 Bpdu Tunnelconfiguration163
- BPDU Tunnel Overview163
- Configuring BPDU Tunnel163
- BPDU Tunnel Configuration Example164
21 Acl Configuration167
- ACL Overview167
- ACL Configuration Tasks169
- Displaying and Debugging ACL Configurations176
- ACL Configuration Example177
22 Qos Configuration181
- Qos Overview181
- Introduction to Qos Configuration Based on Port Groups184
- Qos Configuration188
- Qos Configuration Example202
Logon209
- Configuration209
- Overview209
- Configuring ACL for Telnet/Ssh Users209
- Configuring ACL for SNMP Users212
Vlan-Aconfigurationl Configuration215
- VLAN-ACL Overview215
- Configuration215
26 Aaaand Radius/Hwtacacs Protocolconfiguration235
Portal267
- Portal Overview267
- Basic Portal Configuration270
- Portal Authentication-Free User and Free IP Address Configuration276
- Portal Rate Limit Function Configuration278
- Portal User Deletion278
Ip Routing Protocol Overview279
- Introduction to IP Route and Routing Table279
- Routing Management Policy282
Static Route285
- Introduction to Static Route285
- Configuring Static Route286
- Displaying and Debugging Static Route287
- Typical Static Route Configuration Example288
- Troubleshooting Static Route Faults289
30 Rip Configuration291
- Introduction to RIP291
- Configuring RIP292
- Displaying and Debugging RIP300
- Typical RIP Configuration Example300
- Troubleshooting RIP Faults301
31 Ospf Configuration303
- OSPF Overview303
- OSPF GR Overview307
- Configuring OSPF311
- Displaying and Debugging OSPF330
- Typical OSPF Configuration Example331
- Troubleshooting OSPF Faults336
32 Integrated Is-Is Configuration339
- Introduction to Integrated IS-IS339
- Routing Protocol341
- Configuring Integrated IS-IS343
- Displaying and Debugging Integrated IS-IS358
- Typical Integrated IS-IS Configuration Example359
33 Bgp Configuration361
- BGP/MBGP Overview361
- Configuring BGP364
- Displaying and Debugging BGP383
- Typical BGP Configuration Examples384
- Configure Vlan386
- Troubleshooting BGP390
Ip Routing Policy393
- Introduction to IP Routing Policy393
- Configuring IP Routing Policy394
- Displaying and Debugging the Routing Policy401
- Typical IP Routing Policy Configuration Example401
- Troubleshooting Routing Policy402
Route Capacity Configuration405
Recursive Routing Configuration407
37 Ip Multicastoverview409
- IP Multicast Overview409
- Implementation of IP Multicast411
- RPF Mechanism for IP Multicast Packets414
Static Multicast Mac Address Configuration417
- Static Multicast MAC Address Overview417
- Configuring a Static Multicast MAC Address417
- Displaying and Maintaining Static Multicast MAC Address Configuration418
39 Igmp Snoopingconfiguration419
- IGMP Snooping Overview419
- IGMP Snooping Configuration422
- Multicast Static Routing Port Configuration426
- Displaying and Maintaining IGMP Snooping427
- IGMP Snooping Configuration Example427
- Troubleshooting IGMP Snooping428
Multicast Vlan Configuration431
- Multicast VLAN Overview431
- Multicast VLAN Configuration Example432
Ommon Ulticast Configuration435
- Introduction to Common Multicast Configuration435
- Common Multicast Configuration435
- Managed Multicast Configuration437
- Configuring Broadcast/Multicast Suppression439
- Displaying and Debugging Common Multicast Configuration440
Igmp C441
- IGMP Overview441
- Introduction to IGMP Proxy442
- IGMP Configuration444
- Displaying and Debugging IGMP453
Pim-DM C455
- PIM-DM Overview455
- PIM-DM Configuration456
- Displaying and Debugging PIM-DM459
- PIM-DM Configuration Example460
Pim-Sm C463
- PIM-SM Overview463
- PIM-SM Configuration465
- Displaying and Debugging PIM-SM469
  - PIM-SM Configuration Example469
Msdp C473
- MSDP Overview473
- MSDP Configuration476
- Displaying and Debugging MSDP482
- MSDP Configuration Examples483
46 Mbgp M Ulticastextensionconfiguration493
- MBGP Multicast Extension Overview493
- MBGP Multicast Extension Configuration494
- Displaying and Debugging MBGP Configuration501
- MBGP Multicast Extension Configuration Example501
Mpls a507
- MPLS Overview507
- MPLS Basic Concepts507
- MPLS Architecture510
Mpls Basic Capability Configuration515
- MPLS Basic Capability Overview515
- MPLS Configuration515
- LDP Configuration517
- Displaying and Debugging MPLS Basic Capability521
- Typical MPLS Configuration Example523
- Troubleshooting MPLS Configuration526
Bgp/Mpls Vpn C529
- BGP/MPLS VPN Overview529
- BGP/MPLS VPN Configuration537
- Displaying and Debugging BGP/MPLS VPN550
- Typical BGP/MPLS VPN Configuration Example552
- Troubleshooting BGP/MPLS VPN Configuration599
Card Intermixing for Mpls Support601
- Overview601
- Restrictions in Intermixing Networking602
- Intermixing Configuration Task603
- Restrictions in Networking of Various MPLS Cards611
Mpls Vll613
- MPLS L2VPN Overview613
- CCC MPLS L2VPN Configuration616
- Martini MPLS L2VPN Configuration621
- Kompella MPLS L2VPN Configuration625
- Displaying and Debugging MPLS L2VPN629
- Troubleshooting MPLS L2VPN630
52 Vpls C Onfiguration633
- VPLS Overview633
- Basic VPLS Network Architectures634
- VPLS Operational Principle635
- Concepts Related to VPLS637
- VPLS Basic Configuration638
- Displaying and Debugging VPLS646
- VPLS Basic Configuration Example646
- Troubleshooting VPLS650
53 Vrrp C Onfiguration653
- Introduction to VRRP653
- Configuring VRRP654
- Displaying and Debugging VRRP659
- VRRP Configuration Example660
- Networking Diagram661
- Troubleshooting VRRP664
54 Ha Configuration667
- Introduction to HA667
- Configuring HA667
- Displaying and Debugging HA Configuration669
- HA Configuration Example670
55 Arp Configuration671
- Introduction to ARP671
- Configuring ARP672
- Displaying and Debugging ARP675
Arp Table677
- Introduction to ARP Table Size Configuration677
- Configuring ARP Table Size Dynamically678
- Displaying ARP Table Size Configuration678
- Configuration Example679
57 Dhcp C Onfiguration681
- Some Concepts about DHCP681
- Configuring General DHCP684
- Configuring DHCP Server686
- Configuring DHCP Relay698
- DHCP Option 82 Configuration702
58 Dns Configuration709
- Introduction to DNS709
- Configuring Static Domain Name Resolution710
- Configuring Dynamic Domain Name Resolution710
- Displaying and Debugging Domain Name Resolution711
- DNS Configuration Example711
- Troubleshooting Domain Name Resolution Configuration712
Netstream713
- Netstream Overview713
- Netstream Configuration714
- Netstream Configuration Examples716
Ndp C719
- Introduction to NDP719
- Introduction to NDP Configuration Tasks719
- NDP Configuration Example721
61 Poe Configuration723
- Poe Overview723
- Poe Configuration724
- Comprehensive Configuration Example726
O E Psu Supervision729
- Introduction to Poe PSU Supervision729
- AC Input Alarm Thresholds Configuration729
- DC Output Alarm Thresholds Configuration730
- Displaying Poe Supervision Information731
- Poe PSU Supervision Configuration Example731
Udp Helper733
- Overview733
- Configuring UDP Helper733
- Displaying UDP Helper735
Snmp C737
- SNMP Overview737
- SNMP Versions and Supported MIB737
- Configuring SNMP738
- Displaying and Debugging SNMP743
- SNMP Configuration Example743
Rmon C747
- RMON Overview747
- Configuring RMON747
- Displaying and Debugging RMON750
- RMON Configuration Example751
66 Ntp Configuration753
- Brief Introduction to NTP753
- NTP Configuration755
- Displaying and Debugging NTP760
- NTP Configuration Example761
- Network Requirements765
Ssh Terminal769
- SSH Terminal Service769
- SFTP Service781
File789
- File System Configuration789
Device Management793
- Device Management Overview793
- Device Management Configuration793
- Displaying and Debugging Device Management796
- Device Management Configuration Example796
70 Ftp&Tftp Configuration801
- FTP Configuration801
- TFTP Configuration806
Information Center811
- Information Center Function811
System Aintenance and835
- Basic System Configuration835
- Displaying the Status and Information of the System836
- System Debugging836
- Testing Tools for Network Connection838
Protocol841
- Introduction to Protocol Port Security841
Packet843
- Introduction to Egress Packet Statistics843
Ethernet845
- Ethernet Port Loopback Detection Function845
- Configuring the Loopback Detection Function845
- Displaying and Maintaining the Loopback Detection Function845
Qin847
- Qinq Overview847
- VLAN VPN Configuration849
- Traffic Classification-Based Nested VLAN Configuration850
- Adjusting TPID Values for Qinq Packets853
- VLAN-VPN Tunnel Configuration855
77 Nqa Configuration861
- Introduction to NQA861
- NQA Configuration861
- Displaying and Maintaining NQA865
Password867
- Introduction to Password Control Configuration867
Acronyms877

3Com 8807 - Page 415

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