3Com 4210 9-Port - Page 384

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# Configure the port state auto recovery function, and set the recovery interval to 200 seconds.

[SwitchA] arp protective-down recover enable

[SwitchA] arp protective-down recover interval 200

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Table of Contents6
- Default Chapter3
  - About this Manual3
- 1 Logging in to an Ethernet Switch8
  - Introduction to the User Interface8
- 2 Logging in through the Console Port11
- 3 Logging in through Telnet23
- 4 Logging in Using a Modem34
- 151 CLI Configuration38
- 7 Logging in through NMS56
  - Introduction56
  - Connection Establishment Using NMS56
- 8 User Control57
Configuration File Management64
- Configuration File Management65
  - Introduction to Configuration File65
  - Management of Configuration File66
VLAN Overview/Vlan Configuration70
- 1 VLAN Overview71
- 2 VLAN Configuration77
Management VLAN Configuration84
- Introduction to Management VLAN85
- Management VLAN Configuration85
- Management VLAN Configuration86
- Displaying and Maintaining Management VLAN Configuration88
IP Addressing Configuration/Ip Performance Configuration89
- 1 IP Addressing Configuration90
- 2 IP Performance Configuration94
DNS Configuration97
- DNS Configuration98
- DNS Overview98
  - Static Domain Name Resolution98
  - Dynamic Domain Name Resolution98
- Configuring Domain Name Resolution99
  - Configuring Static Domain Name Resolution99
  - Configuring Dynamic Domain Name Resolution100
- Displaying and Maintaining DNS100
- DNS Configuration Example101
  - Static Domain Name Resolution Configuration Example101
  - Dynamic Domain Name Resolution Configuration Example102
- Troubleshooting DNS103
Voice VLAN Configuration104
- Voice VLAN Configuration105
- Voice VLAN Overview105
- Voice VLAN Configuration111
- Displaying and Maintaining Voice VLAN115
- Voice VLAN Configuration Example116
  - Voice VLAN Configuration Example (Automatic Voice VLAN Assignment Mode)116
  - Voice VLAN Configuration Example (Manual Voice VLAN Assignment Mode)117
Gvrp Configuration119
- GVRP Configuration120
- Introduction to GVRP120
- GVRP Configuration123
- Displaying and Maintaining GVRP126
- GVRP Configuration Example126
# Display the VLAN Information Dynamically Registered on Switch E.130
- Ethernet Port Configuration131
- Port Basic Configuration131
- Ethernet Port Configuration Example142
- Troubleshooting Ethernet Port Configuration143
Link Aggregation Configuration144
- Link Aggregation Configuration145
- Overview145
- Link Aggregation Classification146
- Aggregation Group Categories149
- Link Aggregation Configuration150
- Displaying and Maintaining Link Aggregation Configuration153
- Link Aggregation Configuration Example153
  - Ethernet Port Aggregation Configuration Example153
Port Isolation Configuration156
- Port Isolation Configuration157
Port Security Configuration/Port Binding Configuration160
- 1 Port Security Configuration161
- 2 Port Binding Configuration175
Dldp Configuration178
- DLDP Configuration179
- Overview179
- DLDP Fundamentals180
- DLDP Configuration187
- DLDP Configuration Example189
Mac Address Table Management191
- MAC Address Table Management192
- Overview192
- MAC Address Table Management196
- Displaying MAC Address Table Information198
  - Adding a Static Mac Address Entry Manually199
Mstp Configuration200
- MSTP Configuration202
- Overview202
- MSTP Configuration Task List216
- Configuring Root Bridge218
- Configuring Leaf Nodes231
- Performing Mcheck Operation235
  - Configuration Prerequisites235
  - Configuration Procedure235
- Configuring Guard Functions236
- Configuring Digest Snooping241
  - Introduction241
- Configuring Rapid Transition242
  - Introduction242
  - Configuring Rapid Transition244
- Configuring VLAN-VPN Tunnel245
  - Introduction245
- MSTP Maintenance Configuration246
- Displaying and Maintaining MSTP247
- Enabling Trap Messages Conforming to 802.1D Standard247
- MSTP Configuration Example248
- VLAN-VPN Tunnel Configuration Example250
Igmp Snooping Configuration/Common Multicast Configuration252
- Default Chapter254
- 2 IGMP Snooping Configuration266
- 3 Common Multicast Configuration286
  - Configuring Suppression on the Multicast Source Port286
  - Configuring a Multicast MAC Address Entry287
Table of Contents289
- X Configuration290
- 2 HABP Configuration314
- 3 System-Guard Configuration316
Aaa Overview/Aaa Configuration318
- 1 Aaa Overview320
  - Introduction to AAA320
  - Introduction to AAA Services322
    - Introduction to RADIUS322
    - Introduction to HWTACACS326
- 2 AAA Configuration329
Mac Authentication Configuration364
- MAC Authentication Configuration365
- MAC Authentication Overview365
  - Performing MAC Authentication on a RADIUS Server365
  - Performing MAC Authentication Locally365
- Configuring Basic MAC Authentication Functions366
- Related Concepts366
  - MAC Authentication Timers366
  - Quiet MAC Address366
- MAC Address Authentication Enhanced Function Configuration367
- Displaying and Debugging MAC Authentication370
- MAC Authentication Configuration Example371
Table of Contents373
- Introduction to ARP374
- ARP Configuration378
- Displaying and Debugging ARP381
- Gratuitous ARP Packet Configuration381
- ARP Configuration Example382
  - ARP Basic Configuration Example382
  - ARP Attack Detection and Packet Rate Limit Configuration Example382
Dhcp Overview/Dhcp Server Configuration385
- 1 Dhcp Overview387
- 2 DHCP Server Configuration391
- 3 DHCP Snooping Configuration422
- 4 DHCP Packet Rate Limit Configuration435
- 5 DHCP/BOOTP Client Configuration438
Acl Configuration443
- ACL Configuration444
- ACL Configuration446
- ACL Assignment451
- Displaying ACL Configuration453
- Example for Upper-Layer Software Referencing Acls454
  - Example for Controlling Telnet Login Users by Source IP454
  - Example for Controlling Web Login Users by Source IP454
- Example for Applying Acls to Hardware455
Qos Configuration/Qos Profile Configuration458
- 1 Qos Configuration459
- 2 Qos Profile Configuration486
  - Overview486
    - Introduction to Qos Profile486
    - Qos Profile Application Mode486
  - Qos Profile Configuration487
Mirroring Configuration491
- Mirroring Configuration492
- Mirroring Overview492
  - Local Port Mirroring492
  - Remote Port Mirroring492
- Mirroring Configuration494
- Mirroring Configuration Example498
  - Local Port Mirroring Configuration Example498
  - Remote Port Mirroring Configuration Example499
Cluster503
- Cluster504
- Cluster Overview504
- Cluster Configuration Tasks511
- Displaying and Maintaining Cluster Configuration525
- Cluster Configuration Example526
  - Basic Cluster Configuration Example526
  - Enhanced Cluster Feature Configuration Example529
Poe Profile Configuration531
- Poe Overview532
- Poe Configuration Example538
- Introduction to Poe Profile540
  - Configuring Poe Profile540
- Poe Profile Configuration540
- Displaying Poe Profile Configuration541
- Poe Profile Configuration Example541
  - Poe Profile Application Example541
Snmp Configuration544
- Snmp Configuration545
- Snmp Overview545
- Configuring Basic Snmp Functions546
- Configuring Trap Parameters548
  - Configuring Basic Trap548
  - Configuring Extended Trap549
- Enabling Logging for Network Management549
- Displaying Snmp550
- Snmp Configuration Examples550
  - Commonly Used Rmon Groups554
- Displaying Rmon556
- Rmon Configuration Examples556
Ntp Configuration558
- Introduction to NTP559
- NTP Configuration559
- Configuring NTP Implementation Modes563
- NTP Configuration Tasks563
- Configuring Access Control Right567
  - Configuration Prerequisites568
  - Configuration Procedure568
- Configuring NTP Authentication568
  - Configuration Prerequisites569
  - Configuration Procedure569
- Configuring Optional NTP Parameters571
- Configuration Example572
- Displaying NTP Configuration572
Ssh Configuration581
- SSH Configuration582
- SSH Overview582
- Configuring the SSH Server585
- SSH Server and Client Configuration Task List585
- Configuring the SSH Client593
- Comparison of SSH Commands with the same Functions601
- Displaying and Maintaining SSH Configuration601
- SSH Configuration Examples602
File System Management Configuration625
- File System Configuration626
- File System Management Configuration626
- File Attribute Configuration630
Ftp and Sftp Configuration/Tftp Configuration633
- 1 FTP and SFTP Configuration634
  - Introduction to FTP and SFTP634
    - Introduction to FTP634
    - Introduction to SFTP634
  - FTP Configuration635
- 2 TFTP Configuration651
  - Introduction to TFTP651
    - TFTP Configuration: a Switch Operating as a TFTP Client651
    - TFTP Configuration Example651
Information Center654
- Information Center655
  - System Information Format658
- Information Center Configuration661
- Displaying and Maintaining Information Center668
- Information Center Configuration Examples669
Table of Contents674
- 1 Boot ROM and Host Software Loading676
- 2 Basic System Configuration and Debugging691
- 3 Network Connectivity Test696
  - Ping696
  - Tracert696
- 4 Device Management697
- 5 Scheduled Task Configuration705
  - What Is a Scheduled Task705
  - Configuring a Scheduled Task705
    - Configuration Prerequisites705
Remote-Ping Configuration713
- Remote-Ping Configuration714
- Remote-Ping Overview714
- Remote-Ping Configuration717
- Remote-Ping Configuration Examples735
Ipv6 Configuration/Ipv6 Application Configuration752
- 1 Ipv6 Configuration753
- 2 Ipv6 Application Configuration771
Password Control Configuration Operations777
- Introduction to Password Control Configuration778
- Password Control Configuration Operations778
- Password Control Configuration780
- Displaying Password Control787
- Password Control Configuration Example787
  - Network Requirements787
  - Configuration Procedure788
Smart Link Configuration/Monitor Link Configuration789
- 1 Smart Link Configuration790
- 2 Monitor Link Configuration797
Arp and IP Attack Defense Configuration803
- ARP and IP Attack Defense Configuration804
- ARP Packet Filtering Based on Gateway's Address804
  - Introduction804
  - Configuring ARP Packet Filtering804
- Configuring the Maximum Number of Dynamic ARP Entries a VLAN Interface Can Learn805
  - Introduction805
  - Configuring the Maximum Number of Dynamic ARP Entries that a VLAN Interface Can Learn805
- ARP/IP Attack Defense Based on 802.1X806
  - Configuring 802.1X-Based ARP/IP Attack Defense807
- Configuring ARP Source MAC Address Consistency Check807
  - Introduction807
  - Enabling ARP Source MAC Address Consistency Check808
- ARP Attack Defense Configuration Example I808
- Arp Attack Defense Configuration Example II809
- ARP/IP Attack Defense Configuration Example III810
Lldp Configuration812
- LLDP Configuration813
- Overview813
- LLDP Configuration Task List818
- Performing Basic LLDP Configuration819
- Configuring CDP Compatibility822
  - Configuration Prerequisites823
  - Configuring CDP Compatibility823
- Configuring LLDP Trapping823
- Displaying and Maintaining LLDP824
- LLDP Configuration Examples824
  - Basic LLDP Configuration Example824
  - Cdp-Compatible Lldp Configuration Example827
Pki Configuration830
- Introduction to PKI831
- PKI Configuration831
- Configuring an Entity DN834
- PKI Configuration Task List834
- Configuring a PKI Domain836
- Submitting a PKI Certificate Request837
  - Submitting a Certificate Request in Auto Mode837
  - Submitting a Certificate Request in Manual Mode838
- Retrieving a Certificate Manually839
- Configuring PKI Certificate Verification840
- Deleting a Certificate841
- Destroying a Local RSA Key Pair841
- Configuring an Access Control Policy842
- Displaying and Maintaining PKI842
- PKI Configuration Examples843
  - Requesting a Certificate from a CA Running RSA Keon843
  - Requesting a Certificate from a CA Running Windows 2003 Server846
- Troubleshooting PKI849
Ssl Configuration852
- SSL Configuration853
- SSL Overview853
  - SSL Security Mechanism853
  - SSL Protocol Stack854
- Configuring an SSL Server Policy854
- SSL Configuration Task List854
- Configuring an SSL Client Policy858
  - Configuration Prerequisites858
  - Configuration Procedure858
- Displaying and Maintaining Ssl859
- Troubleshooting Ssl859

3Com 4210 9-Port - Page 384

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