HP E2620 User Manual

4-3
Troubleshooting
Basic Troubleshooting Tips
The E2620 Switches also support Trunking, which allows multiple
network cables to be used for a single network connection without
causing a data path loop. For more information on Spanning Tree and
Trunking, see the Management and Configuration Guide, which is on
the HP Web site at
www.hp.com/networking/support, (see page 1-14).
■ Check the port configuration. A port on your switch may not be
operating as you expect because it has been put into a “blocking” state by
Spanning Tree, GVRP (automatic VLANs), or LACP (automatic trunking).
(Note that the normal operation of the Spanning Tree, GVRP, and LACP
features may put the port in a blocking state.) Or, the port just may have
been configured as disabled through software.
Use the switch console to determine the port’s configuration and verify
that there is not an improper or undesired configuration of any of the
switch features that may be affecting the port. For more information, see
the Management and Configuration Guide, which is on the HP Web site
at
www.hp.com/networking/support, (see page 1-14).
For more information on possible network problems and their solutions, refer
to the technical note “Troubleshooting LAN Performance and Intermittent
Connectivity Problems”, which can be found on the HP Web site,
www.hp.com/networking/support, in the Reference Library section, A-Z Index.

HP E2620 Specifications

General

Model	HP E2620
Jumbo Frame Support	Yes
Manageable	Yes
Ports	24 or 48 10/100/1000 ports
Uplink Ports	4 SFP ports
Layer	Layer 2
Management	Web, CLI, SNMP
PoE Support	Available on some models (PoE+)
MAC Address Table Size	16000 entries
Operating Temperature	0°C to 45°C
Switching Capacity	Up to 128 Gbps
Throughput	Up to 95.2 Mpps
Weight	3.7 kg
Operating Humidity	15% to 95% non-condensing