Edge-Core ES3628C Información técnica Pagina 473
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Interface Commands
4-147
4
Example
The following example configures Ethernet port 5 capabilities to 100half, 100full and
flow control.
Related Commands
negotiation (4-145)
speed-duplex (4-144)
flowcontrol (4-147)
flowcontrol
This command enables flow control. Use the no form to disable flow control.
Syntax
[no] flowcontrol
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• Flow control can eliminate frame loss by “blocking” traffic from end stations or
segments connected directly to the switch when its buffers fill. When enabled,
back pressure is used for half-duplex operation and IEEE 802.3-2002
(formally IEEE 802.3x) for full-duplex operation.
• To force flow control on or off (with the flowcontrol or no flowcontrol
command), use the no negotiation command to disable auto-negotiation on
the selected interface.
• When using the negotiation command to enable auto-negotiation, the
optimal settings will be determined by the capabilities command. To enable
flow control under auto-negotiation, “flowcontrol” must be included in the
capabilities list for any port
• Avoid using flow control on a port connected to a hub unless it is actually
required to solve a problem. Otherwise back pressure jamming signals may
degrade overall performance for the segment attached to the hub.
Example
The following example enables flow control on port 5.
Console(config)#interface ethernet 1/5
Console(config-if)#capabilities 100half
Console(config-if)#capabilities 100full
Console(config-if)#capabilities flowcontrol
Console(config-if)#
Console(config)#interface ethernet 1/5
Console(config-if)#flowcontrol
Console(config-if)#no negotiation
Console(config-if)#
- Powered by Accton 1
- Fast Ethernet Switch 3
- F3.1.0.18 E032005-R02 4
- 149100005100H 4
- Contents 5
- Chapter 1: Introduction 29
- Introduction 30
- System Defaults 35
- Connecting to the Switch 39
- Required Connections 40
- Basic Configuration 41
- Setting Passwords 42
- Setting an IP Address 42
- Dynamic Configuration 43
- Initial Configuration 44
- Trap Receivers 45
- Saving Configuration Settings 46
- Managing System Files 47
- Using the Web Interface 49
- Home Page 50
- Configuration Options 51
- Panel Display 51
- Main Menu 52
- Manual Configuration 66
- Using DHCP/BOOTP 67
- Managing Firmware 68
- Console Port Settings 73
- Telnet Settings 75
- Configuring Event Logging 77
- Remote Log Configuration 78
- Displaying Log Messages 80
- Resetting the System 82
- Setting the System Clock 83
- Setting the Time Zone 84
- Enabling the SNMP Agent 86
- Console(config)# 87
- Setting a Local Engine ID 91
- Specifying a Remote Engine ID 91
- Configuring SNMPv3 Users 92
- Configuring SNMPv3 Groups 96
- Configuring the Switch 100
- Setting SNMPv3 Views 100
- User Authentication 101
- Configuring HTTPS 106
- Configuring the Secure Shell 108
- Generating the Host Key Pair 109
- Configuring the SSH Server 111
- Configuring Port Security 113
- Displaying 802.1X Statistics 120
- Access Control Lists 124
- Setting the ACL Name and Type 125
- Configuring a Standard IP ACL 125
- Configuring a MAC ACL 129
- Configuring ACL Masks 131
- Configuring an IP ACL Mask 132
- Configuring a MAC ACL Mask 134
- Port Configuration 136
- Creating Trunk Groups 141
- Configuring LACP Parameters 146
- Displaying LACP Port Counters 149
- Configuring Port Mirroring 155
- Configuring Rate Limits 156
- Showing Port Statistics 157
- Address Table Settings 161
- Displaying the Address Table 162
- Changing the Aging Time 164
- Displaying Global Settings 165
- Figure 3-67 STA Information 167
- Configuring Global Settings 168
- Displaying Interface Settings 172
- VLAN Configuration 183
- VA: VLAN Aware 184
- VU: VLAN Unaware 184
- Displaying Current VLANs 187
- Creating VLANs 188
- Configuring Private VLANs 194
- Configuring Protocol Groups 196
- Mapping Protocols to VLANs 197
- Layer 2 Queue Settings 198
- Figure 3-86 Traffic Classes 201
- Selecting the Queue Mode 202
- Layer 3/4 Priority Settings 204
- Mapping IP Precedence 205
- Mapping DSCP Priority 206
- Mapping IP Port Priority 208
- Quality of Service 209
- Configuring a Class Map 210
- Creating QoS Policies 213
- Multicast 217
- Multicast Filtering 219
- L3 - network core 225
- Displaying the DNS Cache 234
- Provides IP address 235
- Addresses 237
- Configuring Address Pools 239
- Displaying Address Bindings 243
- Master Router 244
- Backup Router 244
- Configuring Router Redundancy 245
- Configuring VRRP Groups 245
- IP Routing 253
- IP Switching 254
- Routing Path Management 255
- Routing Protocols 255
- Address Resolution Protocol 259
- Basic ARP Configuration 260
- Displaying Local ARP Entries 263
- Displaying ARP Statistics 264
- IP Statistics 265
- ICMP Statistics 267
- UDP Statistics 269
- TCP Statistics 270
- Configuring Static Routes 271
- Displaying the Routing Table 272
- Autonomous System A 283
- Autonomous System B 283
- Configuring OSPF Areas 287
- Configuring OSPF Interfaces 292
- Configuring Virtual Links 296
- Configuring NSSA Settings 303
- Console# 307
- Multicast Routing 309
- Configuring DVMRP 313
- Configuring PIM-DM 320
- Accessing the CLI 327
- Console Connection 327
- Telnet Connection 327
- Command Line Interface 328
- Entering Commands 329
- Showing Commands 330
- Partial Keyword Lookup 331
- Using Command History 331
- Understanding Command Modes 332
- Exec Commands 332
- Configuration Commands 333
- Command Line Processing 335
- Command Groups 336
- Line Commands 337
- General Commands 346
- System Management Commands 351
- User Access Commands 353
- IP Filter Commands 355
- Web Server Commands 357
- Telnet Server Commands 360
- Secure Shell Commands 360
- Event Logging Commands 369
- SMTP Alert Commands 375
- Time Commands 379
- System Status Commands 383
- Frame Size Commands 389
- Flash/File Commands 390
- Authentication Commands 395
- Authentication Sequence 396
- RADIUS Client 398
- TACACS+ Client 401
- Port Security Commands 403
- 802.1X Port Authentication 405
- Access Control List Commands 413
- IP ACLs 414
- MAC ACLs 425
- ACL Information 432
- SNMP Commands 433
- DHCP Commands 447
- DHCP Relay 449
- DHCP Server 450
- DNS Commands 462
- Interface Commands 469
- Mirror Port Commands 480
- Rate Limit Commands 482
- Link Aggregation Commands 483
- Address Table Commands 492
- Spanning Tree Commands 496
- 497
- VLAN Commands 514
- Configuring VLAN Interfaces 516
- Displaying VLAN Information 521
- Priority Commands 532
- Quality of Service Commands 545
- Multicast Filtering Commands 554
- IGMP Commands (Layer 3) 562
- IP Interface Commands 569
- IP Routing Commands 576
- Global Routing Configuration 577
- ip-address 593
- Multicast Routing Commands 623
- Router Redundancy Commands 642
- Software Features 653
- Management Features 654
- Standards 654
- Management Information Bases 655
- Software Specifications 656
- Appendix B: Troubleshooting 657
- Using System Logs 658
- Glossary 659
- Glossary-8 666
- E032005-R02 674
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