Name: SMC Networks TigerStack II SMC8848M
Brand: SMC Networks
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VENT

OGGING

OMMANDS

20-39

clear log

This command clears messages from the log buffer.

Syntax

clear log [flash | ram]

• flash - Event history stored in flash memory (i.e., permanent

memory).

• ram - Event history stored in temporary RAM (i.e., memory flushed

on power reset).

Default Setting

Flash and RAM

Command Mode

Privileged Exec

Example

Related Commands

show log (20-42)

Console#clear log

Console#

Default Chapter1
- Management Guide1
- Table of Contents7
- Able of8
Section I Getting Started35
1 Introduction37
- Key Features37
- Table 1-1 Key Features38
- Description of Software Features39
- System Defaults45
- Table 1-2 System Defaults48
2 Initial Configuration49
- Connecting to the Switch49
- Stack Operations53
- Basic Configuration57
- Managing System Files69
  - Saving Configuration Settings70
3 Configuring the Switch75
- Using the Web Interface75
- Navigating the Web Browser Interface77
4 Basic Management Tasks91
- Displaying System Information91
- Figure 4-1 System Information92
- Displaying Switch Hardware/Software Versions95
- Figure 4-2 Switch Information95
- Displaying Bridge Extension Capabilities96
- Figure 4-3 Displaying Bridge Extension Configuration97
- Setting the Switch's IP Address (IP Version 4)98
  - Manual Configuration100
  - Figure 4-4 Ipv4 Interface Configuration - Manual100
  - Figure 4-5 Default Gateway100
  - Using DHCP/BOOTP101
  - Figure 4-6 Ipv4 Interface Configuration - DHCP101
- Setting the Switch's IP Address (IP Version 6)103
  - Configuring an Ipv6 Address103
  - Figure 4-7 Ipv6 Interface Configuration111
  - Configuring an Ipv6 General Network Prefix112
  - Figure 4-8 Ipv6 General Prefix Configuration113
  - Configuring Neighbor Detection Protocol and Static Entries114
  - Figure 4-9 Ipv6 Neighbor Detection and Neighbor Cache117
- Configuring Support for Jumbo Frames118
- Figure 4-10 Configuring Support for Jumbo Frames118
- Managing Firmware119
  - Downloading System Software from a Server120
  - Figure 4-11 Copy Firmware120
  - Figure 4-12 Setting the Startup Code121
  - Figure 4-13 Deleting Files121
- Saving or Restoring Configuration Settings122
  - Downloading Configuration Settings from a Server124
  - Figure 4-14 Downloading Configuration Settings for Start-Up124
  - Figure 4-15 Setting the Startup Configuration Settings125
- Console Port Settings126
- Figure 4-16 Configuring the Console Port127
- Telnet Settings128
- Figure 4-17 Configuring the Telnet Interface130
- Table 4-1 Logging Levels131
- Figure 4-18 System Logs132
- Configuring Event Logging133
  - Remote Log Configuration133
  - Figure 4-19 Remote Logs134
  - Displaying Log Messages135
  - Figure 4-20 Displaying Logs135
  - Sending Simple Mail Transfer Protocol Alerts136
  - Figure 4-21 Enabling and Configuring SMTP Alerts137
- Renumbering the Stack138
- Resetting the System139
- Figure 4-22 Renumbering the Stack139
- Figure 4-23 Resetting the System139
- Setting the System Clock140
  - Configuring SNTP140
  - Setting the Time Zone141
  - Figure 4-24 SNTP Configuration141
  - Figure 4-25 Clock Time Zone142
5 Simple Network Management Protocol143
- Table 5-1 Snmpv3 Security Models and Levels144
- Enabling the SNMP Agent146
- Figure 5-1 Enabling the SNMP Agent146
- Figure 5-2 Configuring SNMP Community Strings147
- Setting Community Access Strings147
- Specifying Trap Managers and Trap Types148
- Figure 5-3 Configuring SNMP Trap Managers151
- Configuring Snmpv3 Management Access153
6 User Authentication169
- Configuring User Accounts169
- Figure 6-1 User Accounts170
- Configuring Local/Remote Logon Authentication173
- Figure 6-2 Authentication Server Settings174
- Configuring HTTPS175
- Configuring the Secure Shell178
- Configuring Port Security186
- Figure 6-6 Port Security188
- Figure 6-7 802.1X Global Information190
- Configuring 802.1X Port Authentication191
- Filtering IP Addresses for Management Access197
- Figure 6-11 IP Filter198
7 Access Control Lists199
- Configuring Access Control Lists199
- Binding a Port to an Access Control List211
- Figure 7-7 ACL Port Binding211
8 Port Configuration213
- Displaying Connection Status213
- Figure 8-1 Port - Port Information214
- Configuring Interface Connections216
- Figure 8-2 Port - Port Configuration218
- Creating Trunk Groups220
- Setting Broadcast Storm Thresholds235
- Figure 8-9 Port Broadcast Control236
- Configuring Port Mirroring237
- Configuring Rate Limits238
- Figure 8-10 Mirror Port Configuration238
- Figure 8-11 Rate Limit Configuration239
- Showing Port Statistics240
- Table 8-4 Port Statistics240
- Figure 8-12 Port Statistics245
9 Address Table Settings248
- Figure 9-1 Static Addresses248
- Displaying the Address Table249
- Figure 9-2 Dynamic Addresses250
- Changing the Aging Time251
- Figure 9-3 Address Aging251
10 Spanning Tree Algorithm253
- Displaying Global Settings256
- Figure 10-1 STA Information258
- Configuring Global Settings260
- Figure 10-2 STA Global Configuration264
- Displaying Interface Settings265
- Figure 10-3 STA Port Information268
- Configuring Interface Settings269
- Table 10-1 Recommended STA Path Cost Range271
- Table 10-2 Default STA Path Costs271
- Figure 10-4 STA Port Configuration272
- Configuring Multiple Spanning Trees273
- Figure 10-5 MSTP VLAN Configuration274
- Each Port275
- Displaying Interface Settings for MSTP276
- Figure 10-6 MSTP Port Information276
- Spanning Tree277
- Configuring Interface Settings for MSTP278
- Table 10-3 Recommended STA Path Cost Range279
- Table 10-4 Default STA Path Costs279
- Figure 10-7 MSTP Port Configuration280
11 VLAN Configuration281
- IEEE 802.1Q Vlans281
- Configuring Private Vlans297
- Configuring Protocol-Based Vlans299
12 Class of Service303
- Layer 2 Queue Settings303
- Layer 3/4 Priority Settings310
13 Quality of Service319
- Configuring Quality of Service Parameters320
14 Multicast Filtering332
- Layer 2 IGMP (Snooping and Query)332
15 Domain Name Service342
- Default Domain Name342
- Configuring General DNS Service Parameters343
- Figure 15-1 DNS General Configuration343
- Configuring Static DNS Host to Address Entries344
- Figure 15-2 DNS Static Host Table345
- Displaying the DNS Cache346
- Figure 15-3 DNS Cache347
16 Dynamic Host Configuration Protocol349
- Configuring DHCP Relay Service350
- Figure 16-1 DHCP Relay Configuration351
- Configuring the DHCP Server352
17 IP Routing361
- Overview361
  - Initial Configuration361
- IP Switching362
  - Routing Path Management364
  - Routing Protocols364
- Basic IP Interface Configuration365
- Figure 17-1 IP Global Settings366
- Configuring IP Routing Interfaces367
- Figure 17-2 IP Routing Interface368
- Address Resolution Protocol369
- Displaying Statistics for IP Protocols381
- Configuring Static Routes386
- Figure 17-11 TCP Statistics386
- Figure 17-12 IP Static Routes387
- Displaying the Routing Table388
- Figure 17-13 IP Routing Table389
- Configuring the Routing Information Protocol390
18 Overview of the Command Line Interface407
- Using the Command Line Interface407
- Entering Commands409
- Command Groups418
- Table 18-4 Command Group Index418
19 General Commands422
- Enable422
- Disable423
- Configure423
- Show History424
- Reload425
- Prompt426
- End426
- Exit427
- Quit427
20 System Management Commands430
- Device Designation Commands430
- System Status Commands432
- Frame Size Commands439
  - Jumbo Frame439
  - Table 20-4 Frame Size Commands439
- File Management Commands440
- Line Commands451
- Event Logging Commands462
- SMTP Alert Commands471
- Time Commands476
21 SNMP Commands484
- Snmp-Server484
- Show Snmp484
- Snmp-Server Community486
- Snmp-Server Contact487
- Snmp-Server Location487
- Snmp-Server Host488
- Snmp-Server Enable Traps491
- Snmp-Server Engine-ID492
- Show Snmp Engine-ID494
- Table 21-2 Show Snmp Engine-ID - Display Description494
- Snmp-Server View495
- Show Snmp View496
- Table 21-3 Show Snmp View - Display Description496
- Snmp-Server Group497
- Show Snmp Group498
- Table 21-4 Show Snmp Group - Display Description499
- Snmp-Server User500
- Show Snmp User502
- Table 21-5 Show Snmp User - Display Description502
- Table 22-1 Authentication Commands503
22 User Authentication Commands504
- User Account Commands504
- Authentication Sequence507
- RADIUS Client510
- TACACS+ Client515
- Web Server Commands517
- Telnet Server Commands522
  - Ip Telnet Server522
  - Table 22-9 Telnet Server Commands522
- Secure Shell Commands523
- Port Security Commands536
  - Port Security537
- 802.1X Port Authentication539
- IP Filter Commands550
23 Access Control List Commands554
- Ipv4 Acls554
- MAC Acls569
- ACL Information573
24 Interface Commands576
- Interface576
- Description577
- Speed-Duplex577
- Negotiation579
- Capabilities580
- Flowcontrol581
- Media-Type582
- Shutdown583
- Switchport Broadcast Packet-Rate584
- Clear Counters585
- Show Interfaces Status586
- Show Interfaces Counters587
- Table 24-1 Interface Commands588
- Show Interfaces Switchport589
- Table 24-2 Show Interfaces Switchport - Display Description590
25 Link Aggregation Commands592
- Channel-Group593
- Lacp594
- Lacp System-Priority596
- Lacp Admin-Key (Ethernet Interface)597
- Lacp Admin-Key (Port Channel)598
- Lacp Port-Priority599
- Show Lacp600
26 Mirror Port Commands605
- Port Monitor605
- Show Port Monitor606
- Table 27-1 Rate Limit Commands609
27 Rate Limit Commands610
- Rate-Limit610
28 Address Table Commands612
- Mac-Address-Table Static612
- Clear Mac-Address-Table Dynamic613
- Show Mac-Address-Table614
- Mac-Address-Table Aging-Time615
- Show Mac-Address-Table Aging-Time616
29 Spanning Tree Commands618
- Spanning-Tree619
- Spanning-Tree Mode620
- Spanning-Tree Forward-Time621
- Spanning-Tree Hello-Time622
- Spanning-Tree Max-Age623
- Spanning-Tree Priority624
- Spanning-Tree Pathcost Method625
- Spanning-Tree Transmission-Limit626
- Spanning-Tree Mst-Configuration626
- Mst Vlan627
- Mst Priority628
- Name629
- Revision630
- Max-Hops630
- Spanning-Tree Spanning-Disabled631
- Spanning-Tree Cost632
- Table 29-2 Recommended STA Path Cost Range632
- Table 29-3 Default STA Path Costs633
- Spanning-Tree Port-Priority634
- Spanning-Tree Edge-Port634
- Spanning-Tree Portfast635
- Spanning-Tree Link-Type637
- Spanning-Tree Mst Cost638
- Table 29-4 Recommended STA Path Cost Range638
- Table 29-5 Default STA Path Costs638
- Spanning-Tree Mst Port-Priority639
- Spanning-Tree Protocol-Migration640
- Show Spanning-Tree641
- Table 29-1 Spanning Tree Commands642
- Show Spanning-Tree Mst Configuration643
30 VLAN Commands646
- GVRP and Bridge Extension Commands646
- Editing VLAN Groups651
- Configuring VLAN Interfaces653
- Displaying VLAN Information660
  - Show Vlan660
  - Table 30-5 Commands for Displaying VLAN Information660
- Configuring Private Vlans661
- Configuring Protocol-Based Vlans663
31 Class of Service Commands670
- Table 31-2 Priority Commands (Layer 2)670
- Priority Commands (Layer 2)671
- Priority Commands (Layer 3 and 4)677
32 Quality of Service Commands688
- Class-Map689
- Match690
- Policy-Map691
- Class692
- Set694
- Police695
- Service-Policy696
- Show Class-Map697
- Show Policy-Map698
- Show Policy-Map Interface698
- Table 33-1 Multicast Filtering Commands701
33 Multicast Filtering Commands702
- IGMP Snooping Commands702
- IGMP Query Commands706
- Static Multicast Routing Commands711
34 Domain Name Service Commands714
- Ip Host714
- Clear Host715
- Ip Domain-Name716
- Ip Domain-List717
- Ip Name-Server718
- Ip Domain-Lookup719
- Show Hosts720
- Table 34-2 Show Dns Cache - Display Description721
- Clear Dns Cache722
35 DHCP Commands723
- DHCP Client724
- DHCP Relay726
- DHCP Server728
36 IP Interface Commands744
- Table 36-2 Basic IP Configuration Commands744
- Basic IP Configuration745
- Address Resolution Protocol (ARP)787
37 IP Routing Commands794
- Global Routing Configuration794
- Routing Information Protocol (RIP)800
Software Specifications820
- Management Features821
- Standards821
- Management Information Bases822
Troubleshooting825
- Problems Accessing the Management Interface825
- Table B-1 Troubleshooting Chart825
- Using System Logs827
Glossary829
Index839

SMC Networks TigerStack II SMC8848M User Manual

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Brand	SMC Networks
Model	TigerStack II SMC8848M
Category	Switch
Language	English