Home » 3Com Manuals » Hubs & Switches » 3Com 2916-SFP » Manual Viewer

3Com 2916-SFP User Guide - Page 173

CRC & Align Errors, Multicast Packets Received

UPC - 662705518893

Add to My Manuals
Save this manual to your list of manuals

Page 173 highlights

Viewing Port Statistics 173 ■ Refresh Rate - Defines the amount of time that passes before the interface statistics are refreshed. The possible field values are: ■ No Refresh - Indicates that the port statistics are not refreshed. ■ 15 Sec - Indicates that the port statistics are refreshed every 15 seconds. ■ 30 Sec - Indicates that the port statistics are refreshed every 30 seconds. ■ 60 Sec - Indicates that the port statistics are refreshed every 60 seconds. ■ Received Bytes (Octets) - Displays the number of octets received on the interface since the device was last refreshed. This number includes bad packets and FCS octets, but excludes framing bits. ■ Received Packets - Displays the number of packets received on the interface, including bad packets, Multicast and broadcast packets, since the device was last refreshed. ■ Broadcast Packets Received - Displays the number of good broadcast packets received on the interface since the device was last refreshed. This number does not include Multicast packets. ■ Multicast Packets Received - Displays the number of good Multicast packets received on the interface since the device was last refreshed. ■ CRC & Align Errors - Displays the number of CRC and Align errors that have occurred on the interface since the device was last refreshed. ■ Undersize Packets - Displays the number of undersized packets (less than 64 octets) received on the interface since the device was last refreshed. ■ Oversize Packets - Displays the number of oversized packets (over 1522 octets) received on the interface since the device was last refreshed. ■ Fragments - Displays the number of fragments (packets with less than 64 octets, excluding framing bits, but including FCS octets) received on the interface since the device was last refreshed. ■ Jabbers - Displays the total number of received packets that were longer than 1522 octets. This number excludes frame bits, but includes FCS octets that had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral

Section	Page
3Com® Baseline Switch 2916-SFP Plus and Baseline Switch 2924-SFP Plus User Guide	1
About This Guide	3
User Guide Overview	3
Intended Audience	5
Conventions	5
Related Documentation	5
Contents	6
Getting Started	11
About the Switch 2916 and 2924	12
Front Panel Detail	13
LED Status Indicators	14
System Specifications	15
Installing the Switch	16
Setting Up for Management	17
Methods of Managing a Switch	17
Switch Setup Overview	18
Using the Command Line Interface (CLI)	21
Setting Up Web Interface Management	25
Setting Up SNMP Management V1 or V2	26
Default Users and Passwords	27
Upgrading Software using the CLI	27
Using the 3Com Web Interface	28
Starting the 3Com Web Interface	28
Understanding the 3Com Web Interface	30
Using Screen and Table Options	33
Saving the Configuration	37
Resetting the Device	38
Restoring Factory Defaults	39
Logging Off the Device	40
Viewing Basic Settings	41
Viewing Device Settings	41
Viewing Color Keys	43
Managing Device Security	44
Configuring System Access	45
Defining RADIUS Clients	50
Defining Port-Based Authentication (802.1X)	52
Defining Access Control Lists	57
Enabling Broadcast Storm	78
General System Information	80
Viewing System Description	80
Configuring System Name Information	82
Configuring System Time	83
Configuring Ports	85
Viewing Port Settings	85
Defining Port Settings	88
Viewing Port Details	90
Aggregating Ports	92
Viewing Link Aggregation	93
Configuring Link Aggregation	93
Modifying Link Aggregation	95
Removing Link Aggregation	96
Viewing LACP	97
Modifying LACP	98
Configuring VLANs	100
Viewing VLAN Details	102
Viewing VLAN Port Details	103
Creating VLANs	104
Modifying VLAN Settings	105
Modifying Port VLAN Settings	107
Removing VLANs	108
Configuring IP and MAC Address Information	109
Defining IP Addressing	109
Configuring ARP Settings	110
Configuring Address Tables	114
Configuring IGMP Snooping	123
Introduction	123
Defining IGMP Snooping	124
Configuring Spanning Tree	126
Viewing Spanning Tree	127
Defining Spanning Tree	130
Modifying Spanning Tree	133
Configuring SNMP	135
Defining SNMP Communities	136
Removing SNMP Communities	138
Defining SNMP Traps	139
Removing SNMP Traps	140
Configuring Quality of Service	142
Viewing CoS Settings	143
Defining CoS	144
Viewing CoS to Queue	145
Defining CoS to Queue	145
Viewing DSCP to Queue	147
Configuring DSCP Queue	148
Configuring Trust Settings	149
Viewing Bandwidth Settings	150
Defining Bandwidth Settings	151
Defining Voice VLAN	153
Managing System Files	162
Backing Up System Files	163
Restoring Files	164
Upgrade the Firmware Image	165
Activating Image Files	166
Managing System Logs	167
Viewing Logs	168
Configuring Logging	169
Viewing Statistics	172
Viewing Port Statistics	172
Managing Device Diagnostics	175
Configuring Port Mirroring	175
Viewing Cable Diagnostics	178
3Com Network Management	181
3Com Network Supervisor	181
3Com Network Director	182
3Com Network Access Manager	182
3Com Enterprise Management Suite	183
Integration Kit with HP OpenView Network Node Manager	183
Device Specifications and Features	184
Related Standards	184
Environmental	184
Physical	184
Electrical	185
Switch Features	185
Pin-Outs	189
Console Cable	189
Null Modem Cable	190
PC-AT Serial Cable	190
Modem Cable	190
Ethernet Port RJ-45 Pin Assignments	191
Troubleshooting	192
Problem Management	192
Troubleshooting Solutions	192
3Com CLI Reference Guide	195
Getting Started with the Command Line Interface	195
CLI Commands	196
Glossary	206
Obtaining Support for Your 3Com Products	212
Register Your Product to Gain Service Benefits	212
Solve Problems Online	212
Purchase Extended Warranty and Professional Services	212
Access Software Downloads	213
Contact Us	213

Match case Limit results 1 per page

Viewing Port Statistics

173

■

Refresh Rate

— Defines the amount of time that passes before the

interface statistics are refreshed. The possible field values are:

■

No Refresh

— Indicates that the port statistics are not refreshed.

■

15 Sec

— Indicates that the port statistics are refreshed every 15

seconds.

■

30 Sec

— Indicates that the port statistics are refreshed every 30

seconds.

■

60 Sec

— Indicates that the port statistics are refreshed every 60

seconds.

■

Received Bytes (Octets)

— Displays the number of octets received

on the interface since the device was last refreshed. This number

includes bad packets and FCS octets, but excludes framing bits.

■

Received Packets

— Displays the number of packets received on the

interface, including bad packets, Multicast and broadcast packets,

since the device was last refreshed.

■

Broadcast Packets Received

— Displays the number of good

broadcast packets received on the interface since the device was last

refreshed. This number does not include Multicast packets.

■

Multicast Packets Received

— Displays the number of good

Multicast packets received on the interface since the device was last

refreshed.

■

CRC & Align Errors

— Displays the number of CRC and Align errors

that have occurred on the interface since the device was last

refreshed.

■

Undersize Packets

— Displays the number of undersized packets

(less than 64 octets) received on the interface since the device was last

refreshed.

■

Oversize Packets

— Displays the number of oversized packets (over

1522 octets) received on the interface since the device was last

refreshed.

■

Fragments

— Displays the number of fragments (packets with less

than 64 octets, excluding framing bits, but including FCS octets)

received on the interface since the device was last refreshed.

■

Jabbers

— Displays the

total number of received packets that were

longer than 1522 octets. This number excludes frame bits, but includes

FCS octets that had either a bad Frame Check Sequence (FCS) with an

integral number of octets (FCS Error) or a bad FCS with a non-integral