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12-10
Port Traffic Controls
Jumbo Frames
If there are security concerns with grouping the ports as shown for VLAN
300, you can either use source-port filtering to block unwanted traffic
paths or create separate jumbo VLANs, one for ports 6 and 7, and another
for ports 12 and 13.
■ Outbound Jumbo Traffic. Any port operating at 1 Gbps or higher can
transmit outbound jumbo frames through any VLAN, regardless of the
jumbo configuration. The VLAN is not required to be jumbo-enabled, and
the port is not required to belong to any other, jumbo enabled VLANs. This
can occur in situations where a non-jumbo VLAN includes some ports that
do not belong to another, jumbo-enabled VLAN and some ports that do
belong to another, jumbo-enabled VLAN. In this case, ports capable of
receiving jumbo frames can forward them to the ports in the VLAN that
do not have jumbo capability.
Figure 12-4. Forwarding Jumbo Frames Through Non-Jumbo Ports
Jumbo frames can also be forwarded out non-jumbo ports when the jumbo
frames received inbound on a jumbo-enabled VLAN are routed to another,
non-jumbo VLAN for outbound transmission on ports that have no mem-
berships in other, jumbo-capable VLANs. Where either of the above
scenarios is a possibility, the downstream device must be configured to
accept the jumbo traffic. Otherwise, this traffic will be dropped by the
downstream device.
Jumbo-Enabled VLAN
VLAN 10
Non-Jumbo VLAN
VLAN 20
Port 3 belongs to both VLAN 10 and VLAN 20.
Jumbo frames received inbound on port 3 can be
forwarded out the Non-Jumbo ports 4, 5, and 6.
1
5
2
3
4
6
- August 2009 1
- 3 Using the Menu Interface 5
- 8 Configuring IP Addressing 9
- 9 Time Protocols 9
- 11 Port Trunking 11
- 12 Port Traffic Controls 12
- A File Transfers 14
- C Troubleshooting 17
- D MAC Address Management 19
- E Monitoring Resources 19
- Product Documentation 22
- Software Feature Index 23
- Intelligent Edge Software 24
- Features 24
- Getting Started 27
- Introduction 28
- Conventions 28
- Command Prompts 29
- Screen Simulations 29
- Sources for More Information 30
- Online Help 32
- Command Line Interface 33
- Web Browser Interface 33
- Need Only a Quick Start? 34
- Advantages of Using the CLI 40
- Interface 41
- Web Browser Interfaces 44
- Using the Menu Interface 49
- Command Line (CLI) option.) 51
- Main Menu Features 55
- 1. VLAN Support 61
- entry in 61
- Menu Features List 62
- Where To Go From Here 63
- Accessing the CLI 65
- Using the CLI 65
- Privilege Levels at Logon 66
- Privilege Level Operation 67
- Manager Privileges 68
- How To Move Between Levels 70
- ? symbol lists the 71
- Listing Command Options 73
- Displaying CLI “Help” 74
- Configuration Modes 76
- CLI Control and Editing 79
- For example: 80
- Using a Command Alias 81
- CLI Shortcut Keystrokes 83
- General Features 86
- Starting a Web Browser 87
- ProCurve Manager Plus (PCM+) 88
- First time install 89
- Browser Interface Session 90
- [Fault Detection] key.) 91
- Using a User Name 93
- If You Lose the Password 93
- The Help Button 94
- Support/Mgmt URLs Feature 95
- Support URL 96
- Port Utilization 100
- Status Reporting Features 101
- Port Status 102
- The Alert Log 103
- The Status Bar 105
- Contents 109
- Configuration File Management 111
- Overview 111
- Using the CLI To Implement 114
- Configuration Changes 114
- Optional Reboot 120
- Switch Command 120
- Image Options 122
- Will boot from primary flash 123
- Switch Software Downloads 124
- Caution: 126
- No Undo! 126
- Rebooting the Switch 127
- Setting the Default Flash 129
- ProCurve(config)# boot 130
- Using Reload 131
- Multiple Configuration Files 133
- General Operation 134
- Configuration Enabled 137
- Command Page 138
- Erasing a Startup-Config File 143
- Connected Host 148
- DHCP Option 66 149
- Operating Notes 150
- Log Messages 151
- Web, and Inbound Telnet 154
- Interface Access 155
- Parameters 155
- and reload 160
- Remote Management Sessions 162
- System Information 163
- (config)# time timezone -480 169
- [System Info] 170
- [Apply Changes] 170
- [?] in the web 170
- Configuring IP Addressing 171
- IP Configuration 172
- Live (TTL) 175
- [IP Configuration] 180
- DHCP/Bootp Operation 182
- ■ For Bootp operation: 184
- ■ For DHCP operation: 184
- Downloads 186
- Enabling IP Preserve 187
- Time Protocols 190
- Operation 192
- Configuring 193
- – TIMEP (the default) 206
- SNTP Servers 214
- Configured 215
- Port Status and Configuration 216
- Menu: Port Configuration 221
- Dynamically updates 225
- Error Messages 227
- Custom” Command 228
- Viewing Transceiver Status 229
- Been Inserted 244
- Configuring UDLD 247
- Enabling UDLD 248
- Viewing UDLD Information 250
- Port 4 is shown as blocked 251
- Port Trunking 253
- Trunk Configuration Methods 256
- of the Menu interface 260
- Trunk Group 261
- [Enter] 262
- “Up” Links 266
- Standby Link 266
- [Port Status] 269
- Table 11-4. LACP Trunk Types 271
- Default Port Operation 273
- LACP Notes and Restrictions 274
- “Trunk” Option 278
- Trunked Links 279
- Port Traffic Controls 282
- Jumbo Frames 283
- Operating Rules 284
- SNMP Implementation 288
- Troubleshooting 292
- Applications 293
- SNMP Management Features 297
- SNMP Version 3 Commands 299
- Enabling SNMPv3 300
- SNMPv3 Users 300
- Group Access Levels 304
- SNMPv3 Communities 304
- Two Operator Access Levels 305
- Communities 306
- SNMP Notifications 310
- ■ Access Security Guide: 311
- SNMPv1 and SNMPv2c Traps 312
- Enabling SNMPv2c Informs 314
- SNMPv2c Inform 315
- Enabling Link-Change Traps 321
- ■ SNMP communities 324
- Configuring Listening Mode 326
- Advanced Management: RMON 327
- Terminology 329
- General LLDP Operation 331
- Configuration Options 332
- ■ IEEE P802.1AB 334
- LLDP Operating Rules 335
- Configuring LLDP Operation 336
- ■ Chassis ID (TLV) 344
- ■ Port Type (TLV subelement) 344
- ■ Port ID (TLV) 344
- TLV-Type > 345
- Advertisements 346
- LLDP-MED Fast Start Control 352
- ■ Voice VLAN ID (VID) 353
- Displaying Advertisement Data 360
- Telephone) Source 364
- Displaying LLDP Statistics 365
- LLDP Operating Notes 367
- LLDP and CDP Data Management 369
- CDP Operation and Commands 371
- ■ show cdp displays 374
- File Transfers 375
- Downloading Switch Software 377
- [E] (for Edit) 379
- [Enter] to begin 380
- Enabling TFTP 383
- Using Auto-TFTP 385
- Using Secure Copy and SFTP 386
- The SCP/SFTP Process 387
- Command Options 389
- Authentication 390
- SCP/SFTP Operating Notes 390
- 392
- \---oper_keys 392
- authorized_keys 392
- PC or UNIX Workstation 393
- Primary or Secondary Flash 395
- Switch-to-Switch Download 396
- Copying Software Images 399
- ProCurve# show tech custom 402
- No SHOW-TECH file found 402
- Host, USB Device, PC or UNIX 404
- Workstation 404
- Status and Counters Data 411
- General System Information 413
- Menu Access 415
- CLI Access 416
- Control Status 418
- CLI Access to MSTP Data 425
- VLAN Information 427
- Traffic Mirroring 430
- Mirroring Terminology 431
- Mirrored Traffic Destinations 433
- Monitored Traffic Sources 433
- Mirroring Sessions 433
- Mirroring Configuration 434
- Configuration 435
- Mirroring 436
- Configuration Steps 437
- Local Mirroring Overview 440
- Traffic Selection Options 443
- Mirroring-Source Restrictions 443
- Local Mirroring Source: 445
- Syntax: show monitor 446
- Maximum Supported Frame Size 449
- Untagged, Mirrored Traffic 451
- Troubleshooting Mirroring 454
- Troubleshooting Approaches 459
- Unusual Network Activity 463
- IGMP-Related Problems 464
- LACP-Related Problems 465
- QoS-Related Problems 468
- Radius-Related Problems 469
- Problems 470
- SSH-Related Problems 471
- TACACS-Related Problems 473
- VLAN-Related Problems 475
- Problem: This switch detects 477
- Switch Problems 478
- CLI: Displaying the Event Log 486
- Event Log and SNMP Messages 487
- Log Throttle Periods 488
- Example of Log Throttling 488
- Debug/Syslog Operation 491
- ■ Up to six Syslog servers 492
- Destinations 498
- Debug Command 499
- New LSAs added to database 500
- enables only the 500
- Debug Destinations 501
- Logging Command 502
- Configuring a Syslog Server 503
- Adding a Priority Description 506
- Sent to a Syslog Server 507
- Diagnostic Tools 510
- Port Auto-Negotiation 511
- Ping and Link Tests 511
- CLI: Ping Test 513
- Link Tests 514
- Traceroute Command 515
- [Ctrl][C] keys 516
- Restoring a Flash Image 531
- [Enter]: 532
- DNS Resolver 533
- Basic Operation 534
- DNS-Compatible Commands 535
- Configuring a DNS Entry 536
- Traceroute Target 538
- First-Hop Router (“B”) 538
- Event Log Messages 541
- MAC Address Management 542
- Determining MAC Addresses 544
- Switch MAC Address Allocation 546
- 6120G/XG 546
- Viewing the MAC Addresses of 548
- Connected Devices 548
- Monitoring Resources 549
- Policy Enforcement Engine 550
- Available 551
- ■ Alaska 552
- ■ Canada and Continental US 552
- ■ Middle Europe and Portugal 552
- ■ Southern Hemisphere 552
- ■ Western Europe 552
- Concepts 556
- OOBM and Switch Applications 560
- OOBM Configuration 561
- OOBM enable/disable 562
- OOBM port enable/disable 563
- OOBM Show Commands 565
- Show OOBM IP configuration 566
- Show OOBM ARP information 566
- Application Server Commands 567
- Application Client Commands 569
- Numerics 572
- 2 – Index 573
- Index – 3 574
- 4 – Index 575
- Index – 5 576
- 6 – Index 577
- Index – 7 578
- 8 – Index 579
- Index – 9 580
- 10 – Index 581
- Index – 11 582
- 12 – Index 583
- Index – 13 584
- 14 – Index 585
- Index – 15 586
- 16 – Index 587
- Index – 17 588
- *5992-5523* 589
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