SMC Networks SMC6752AL2 M, C, 4-75

YSTEM

ANAGEMENT

OMMANDS

4-75

sntp poll

This command sets the interval between sending time requests when the

switch is set to SNTP client mode. Use the no form to restore to the

default.

Syntax

sntp poll seconds

no sntp poll

seconds - Interval between time requests. (Range: 16-16384 seconds)

Default Setting

16 seconds

Command Mode

Global Configuration

Example

Related Commands

sntp client (4-73)

show sntp

This command displays the current time and configuration settings for the

SNTP client, and indicates whether or not the local time has been properly

updated.

Command Mode

Normal Exec, Privileged Exec

Command Usage

This command displays the current time, the poll interval used for

sending time synchronization requests, and the current SNTP mode

(i.e., unicast).

Console(config)#sntp poll 60

Console(config)#

Contents

Main TigerSwitch 10/100 48-Port 10/100Mbps Fast Ethernet Managed Switch Management Guide Page Page Page L W IMITED ARRANTY W IMITED ARRANTY ii iii ONTENTS 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2 Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 3 Configuring the Switch . . . . . . . . . . . . . . . . . . . . . . . . 3-1 iv v vi 4 Command Line Interface . . . . . . . . . . . . . . . . . . . . . . . 4-1 vii viii ix x xi xii xiii xiv A Software Specifications . . . . . . . . . . . . . . . . . . . . . . . . .A-1 B Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 Glossary Index T xv ABLES xvi Page Page F xix IGURES xx xxi Page 1-1 NTRODUCTION Key Features 1-2 Description of Software Features F S 1-3 1-4 F S 1-5 1-6 D 1-7 System Defaults 1-8 D 1-9 Page NITIAL 2-1 ONFIGURATION Connecting to the Switch Configuration Options C 2-2 Required Connections S 2-3 C 2-4 Remote Connections C 2-5 Basic Configuration Console Connection Setting Passwords C 2-6 Setting an IP Address C 2-7 Manual Configuration C 2-8 Dynamic Configuration C 2-9 Enabling SNMP Management Access Community Strings C 2-10 Trap Receivers C 2-11 Saving Configuration Settings C 2-12 Managing System Files ONFIGURING THE 3-1 WITCH Using the Web Interface Page Navigating the Web Browser Interface S 3-4 Configuration Options Panel Display Main Menu Table 3-2 Main Menu S 3-6 M 3-7 S 3-8 M 3-9 S 3-10 C 3-11 Basic Configuration Displaying System Information Page C 3-13 Displaying Switch Hardware/Software Versions Page C 3-15 Displaying Bridge Extension Capabilities Page C 3-17 Setting the Switchs IP Address S 3-18 Manual Configuration C 3-19 Using DHCP/BOOTP S 3-20 C 3-21 Managing Firmware Page Page S 3-24 Saving or Restoring Configuration Settings C 3-25 Page C 3-27 S 3-28 Console Port Settings C 3-29 S 3-30 Telnet Settings C 3-31 S 3-32 C 3-33 Configuring Event Logging System Log Configuration S 3-34 C 3-35 Remote Log Configuration S 3-36 C 3-37 Page C 3-39 Sending Simple Mail Transfer Protocol Alerts Page C 3-41 Resetting the System S 3-42 Setting the System Clock Configuring SNTP C 3-43 S 3-44 Setting the Time Zone N Simple Network Management Protocol Setting Community Access Strings Page Page S 3-48 User Authentication Configuring User Accounts A 3-49 S 3-50 Configuring Local/Remote Logon Authentication A 3-51 S 3-52 Page S 3-54 CLI Specify all the required parameters to enable logon authentication. Configuring HTTPS A 3-55 S 3-56 Replacing the Default Secure-site Certificate A 3-57 Configuring the Secure Shell S 3-58 A 3-59 S 3-60 Generating the Host Key Pair A 3-61 Page A 3-63 Configuring the SSH Server Page A 3-65 Configuring Port Security S 3-66 A 3-67 Configuring 802.1X Port Authentication S 3-68 Page S 3-70 Configuring 802.1X Global Settings A 3-71 Configuring Port Settings for 802.1X S 3-72 A SER UTHENTICATION 3-73 S 3-74 Displaying 802.1X Statistics This switch can display statistics for dot1x protocol exchanges for any port. A 3-75 S 3-76 Filtering Addresses for Management Access Page S 3-78 Access Control Lists Configuring Access Control Lists C L 3-79 Setting the ACL Name and Type S 3-80 Configuring a Standard IP ACL Page S 3-82 Configuring an Extended IP ACL Page S 3-84 Configuring a MAC ACL Page Page C 3-87 Port Configuration Displaying Connection Status Field Attributes (Web) Page C 3-89 Current Status: S 3-90 Configuring Interface Connections C 3-91 S 3-92 Creating Trunk Groups C 3-93 } S 3-94 Statically Configuring a Trunk Page } S 3-96 Enabling LACP on Selected Ports } C 3-97 S 3-98 Configuring LACP Parameters Dynamically Creating a Port Channel C 3-99 Page C ORT 3-101 S 3-102 Displaying LACP Port Counters You can display statistics for LACP protocol messages. C 3-103 CLI The following example displays LACP counters. Displaying LACP Settings and Status for the Local Side Table 3-7 LACP Internal Configuration Information S 3-104 Table 3-7 LACP Internal Configuration Information (Continued) C 3-105 S 3-106 Displaying LACP Settings and Status for the Remote Side Table 3-8 LACP Neighbor Configuration Information C ORT 3-107 S 3-108 Setting Broadcast Storm Thresholds Page S 3-110 Configuring Port Mirroring C 3-111 S 3-112 Configuring Rate Limits Rate Limit Granularity C 3-113 Rate Limit Configuration Page C 3-115 Table 3-9 Port Statistics S 3-116 C 3-117 S 3-118 Page S 3-120 CLI This example shows statistics for port 13. Address Table Settings Page Page Spanning Tree Algorithm Configuration T C A 3-125 x x S 3-126 Displaying Global Settings T C A 3-127 Page T C CLI LGORITHM A S 3-130 Configuring Global Settings T C A 3-131 S 3-132 Page S 3-134 Displaying Interface Settings T x x S 3-136 Page S 3-138 Configuring Interface Settings T C A 3-139 S 3-140 3-141 VLAN Configuration IEEE 802.1Q VLANs S 3-142 Assigning Ports to VLANs 3-143 S 3-144 3-145 Forwarding Tagged/Untagged Frames S 3-146 Enabling or Disabling GVRP (Global Setting) Displaying Basic VLAN Information 3-147 Displaying Current VLANs Command Attributes (Web) Page 3-149 Creating VLANs Page 3-151 Adding Static Members to VLANs (VLAN Index) S 3-152 3-153 Adding Static Members to VLANs (Port Index) Page 3-155 Configuring VLAN Behavior for Interfaces S 3-156 3-157 S 3-158 Private VLANs 3-159 Displaying Current Private VLANs Page 3-161 Configuring Private VLANs S 3-162 Associating VLANs 3-163 Displaying Private VLAN Interface Information Page 3-165 Configuring Private VLAN Interfaces S 3-166 C Class of Service Configuration Layer 2 Queue Settings Setting the Default Priority for Interfaces S 3-168 C ERVICE S OF S 3-170 Page S 3-172 Selecting the Queue Mode Page S 3-174 Layer 3/4 Priority Settings Mapping Layer 3/4 Priorities to CoS Values C S 3-175 Selecting IP Precedence/DSCP Priority Page C S 3-177 Mapping DSCP Priority Page C S 3-179 Mapping IP Port Priority Page C S 3-181 Mapping CoS Values to ACLs Page F 3-183 Multicast Filtering S 3-184 Layer 2 IGMP (Snooping and Query) Configuring IGMP Snooping and Query Parameters F 3-185 Page F 3-187 Displaying Interfaces Attached to a Multicast Router S 3-188 Specifying Static Interfaces for a Multicast Router F 3-189 Displaying Port Members of Multicast Services S 3-190 F 3-191 Assigning Ports to Multicast Services Page 4-1 4 I INE L OMMAND L I 4-2 Telnet Connection Page Entering Commands Page L I 4-6 Showing Commands Page L I 4-8 Understanding Command Modes Exec Commands C 4-9 Configuration Commands L I 4-10 C 4-11 Command Line Processing L I Command Groups The system commands can be broken down into the functional groups shown below Table 4-4 Command Groups G 4-13 L I 4-14 Line Commands Table 4-5 Line Commands C 4-15 line L I 4-16 login C 4-17 password L I 4-18 timeout login response C 4-19 exec-timeout L I 4-20 password-thresh C 4-21 silent-time L I 4-22 databits C 4-23 parity speed L I 4-24 stopbits C 4-25 disconnect show line L General Commands I 4-26 Example To show all lines, enter this command: Table 4-6 General Commands C 4-27 enable L I 4-28 disable configure C 4-29 show history L I 4-30 reload end C 4-31 exit quit L System Management Commands M C 4-33 Device Designation Commands prompt L I 4-34 hostname User Access Commands M C 4-35 username L I 4-36 enable password M C IP Filter Commands 4-37 L I 4-38 management M C 4-39 show management L I Web Server Commands 4-40 Table 4-12 Web Server Commands M C 4-41 ip http port ip http server L I 4-42 ip http secure-server M C 4-43 ip http secure-port L I 4-44 Telnet Server Commands ip telnet port M C 4-45 ip telnet server L I 4-46 Secure Shell Commands M C 4-47 L I 4-48 M C 4-49 ip ssh server L I 4-50 ip ssh timeout M C 4-51 ip ssh authentication-retries ip ssh server-key size L I 4-52 delete public-key M C 4-53 ip ssh crypto host-key generate L I 4-54 ip ssh crypto zeroize ip ssh save host-key M C 4-55 show ip ssh show ssh L I 4-56 Table 4-16 show ssh - display description M C 4-57 show public-key L I 4-58 M C 4-59 Event Logging Commands logging on L I 4-60 logging history M C 4-61 logging host L I 4-62 logging facility M C 4-63 logging trap L I 4-64 clear logging show logging M C 4-65 L I 4-66 The following example displays settings for the trap function. show logging sendmail (4-71) M C 4-67 show log L I 4-68 SMTP Alert Commands logging sendmail host M C 4-69 logging sendmail level L I 4-70 logging sendmail source-email logging sendmail destination-email M C 4-71 logging sendmail show logging sendmail L I 4-72 Time Commands Table 4-22 Time Commands M C 4-73 sntp client L I 4-74 sntp server M C 4-75 sntp poll show sntp L I 4-76 clock timezone M C 4-77 calendar set L I System Status Commands 4-78 show calendar M C 4-79 show startup-config L I 4-80 Example show running-config (4-81) M C 4-81 show running-config L I 4-82 Example show startup-config (4-79) M C 4-83 show system L I 4-84 show users show version M C 4-85 Frame Size Commands jumbo frame Flash/File Commands C 4-87 copy L I 4-88 C LASH ILE 4-89 The following example shows how to copy the running configuration to a startup file. L I 4-90 delete C 4-91 dir L I 4-92 whichboot C 4-93 boot system L I Authentication Commands C 4-95 authentication login L I 4-96 authentication enable C 4-97 RADIUS Client L I 4-98 radius-server host C 4-99 radius-server port radius-server key L I 4-100 radius-server retransmit radius-server timeout C 4-101 show radius-server L I 4-102 TACACS+ Client tacacs-server host C 4-103 tacacs-server port tacacs-server key L I 4-104 show tacacs-server Port Security Commands C 4-105 port security L I 4-106 C 4-107 802.1X Port Authentication Table 4-32 802.1X Port Authentication L I 4-108 dot1x system-auth-control dot1x default C 4-109 dot1x max-req dot1x port-control L I 4-110 dot1x operation-mode C 4-111 dot1x re-authenticate dot1x re-authentication L I 4-112 dot1x timeout quiet-period dot1x timeout re-authperiod C 4-113 dot1x timeout tx-period L I 4-114 show dot1x C 4-115 L I 4-116 C L Access Control List Commands L I IP ACLs 4-118 C L 4-119 access-list ip L I 4-120 permit, deny (Standard ACL) Page L I 4-122 permit, deny (Extended ACL) C L 4-123 L I 4-124 show ip access-list C L 4-125 ip access-group L I 4-126 show ip access-group map access-list ip C L 4-127 show map access-list ip L I 4-128 Example map access-list ip (4-126) Page L I 4-130 permit, deny (MAC ACL) C L 4-131 show mac access-list L I 4-132 mac access-group show mac access-group C L 4-133 map access-list mac L I 4-134 show map access-list mac C L 4-135 ACL Information show access-list SNMP Commands Table 4-39 SNMP Commands 4-137 snmp-server community Page 4-139 snmp-server host L I 4-140 4-141 snmp-server enable traps Page 4-143 L I 4-144 Interface Commands Table 4-40 Interface Commands C 4-145 interface description L I 4-146 speed-duplex C 4-147 negotiation L I 4-148 capabilities C 4-149 flowcontrol L I 4-150 shutdown C 4-151 switchport broadcast packet-rate L I 4-152 clear counters Page L I 4-154 show interfaces counters C 4-155 L I 4-156 show interfaces switchport C 4-157 Table 4-41 Interfaces Switchport Statistics L I Mirror Port Commands port monitor P C 4-159 show port monitor L Rate Limit Commands Page L I 4-162 rate-limit granularity Page L I 4-164 Link Aggregation Commands A C 4-165 L I 4-166 channel-group lacp Page L I 4-168 A C 4-169 lacp system-priority L I 4-170 lacp admin-key (Ethernet Interface) A C 4-171 lacp admin-key (Port Channel) L I 4-172 lacp port-priority Page L I 4-174 Table 4-45 show lacp counters - display description A C 4-175 Table 4-46 show lacp internal - display description L I 4-176 Table 4-46 show lacp internal - display description (Continued) A C 4-177 Table 4-47 show lacp neighbors - display description L Address Table Commands Table 4-48 show lacp sysid - display description Table 4-49 Address Table Commands T C 4-179 mac-address-table static L I 4-180 clear mac-address-table dynamic show mac-address-table T C 4-181 mac-address-table aging-time Page T C 4-183 Spanning Tree Commands Table 4-50 Spanning Tree Commands L I 4-184 spanning-tree T C 4-185 spanning-tree mode L I 4-186 spanning-tree forward-time spanning-tree hello-time T C 4-187 spanning-tree max-age L I 4-188 spanning-tree priority T C 4-189 spanning-tree pathcost method spanning-tree transmission-limit L I 4-190 spanning-tree spanning-disabled T C 4-191 spanning-tree cost L I 4-192 spanning-tree port-priority spanning-tree edge-port T C 4-193 spanning-tree portfast L I 4-194 spanning-tree link-type T C 4-195 spanning-tree protocol-migration L I 4-196 show spanning-tree T C REE PANNING 4-197 VLAN Commands Editing VLAN Groups vlan database 4-199 vlan L I 4-200 4-201 Configuring VLAN Interfaces interface vlan L I 4-202 switchport mode 4-203 switchport acceptable-frame-types L I 4-204 switchport ingress-filtering 4-205 switchport native vlan L I 4-206 switchport allowed vlan 4-207 switchport forbidden vlan L I 4-208 Displaying VLAN Information show vlan 4-209 Configuring Private VLANs L I 4-210 4-211 private-vlan L I 4-212 private vlan association 4-213 switchport mode private-vlan L I 4-214 switchport private-vlan host-association switchport private-vlan isolated 4-215 switchport private-vlan mapping L I 4-216 show vlan private-vlan GVRP GVRP and Bridge Extension Commands bridge-ext gvrp L I 4-218 show bridge-ext GVRP C E B 4-219 L I 4-220 garp timer GVRP C E B 4-221 Priority Commands Table 4-57 Priority Commands Table 4-58 Priority Commands (Layer 2) C 4-223 queue mode L I 4-224 switchport priority default C 4-225 queue bandwidth L I 4-226 queue cos-map C 4-227 show queue mode show queue bandwidth L I 4-228 show queue cos-map C 4-229 Priority Commands (Layer 3 and 4) map ip port (Global Configuration) Table 4-60 Priority Commands (Layer 3 and 4) L I 4-230 map ip port (Interface Configuration) C 4-231 map ip precedence (Global Configuration) L I 4-232 map ip precedence (Interface Configuration) C 4-233 map ip dscp (Global Configuration) map ip dscp (Interface Configuration) L I 4-234 C 4-235 show map ip port L I 4-236 show map ip precedence C 4-237 show map ip dscp L I Multicast Filtering Commands Table 4-63 Multicast Filtering Commands Table 4-64 IGMP Snooping Commands F C 4-239 ip igmp snooping ip igmp snooping vlan static L I 4-240 ip igmp snooping version F C 4-241 show ip igmp snooping show mac-address-table multicast L I IGMP Query Commands (Layer 2) 4-242 F C 4-243 ip igmp snooping querier ip igmp snooping query-count L I 4-244 ip igmp snooping query-interval F C 4-245 ip igmp snooping query-max-response-time L I 4-246 ip igmp snooping router-port-expire-time F C 4-247 Static Multicast Routing Commands ip igmp snooping vlan mrouter L I 4-248 show ip igmp snooping mrouter C IP Interface Commands ip address L I 4-250 C 4-251 ip default-gateway ip dhcp restart L I 4-252 show ip interface C 4-253 show ip redirects ping L I 4-254 PPENDIX OFTWARE A-1 PECIFICATIONS Software Features Management Features S A-3 Standards S A-4 Management Information Bases PPENDIX B-1 B T Problems Accessing the Management Interface ROUBLESHOOTING B-2 S L B-3 Using System Logs Page G Glossary-1 LOSSARY Glossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Glossary-7 Glossary-8 NDEX Numerics A B C G H I J L P Q R S T U V W