HP 2920 User Manual

2-27
Installing the Switch
Stacking Information and Topologies
Ring Topologies
Up to 4 switches may also be connected in closed ring topologies. Ring
topologies afford some protection from a single failure because
communications between the switches continues, in a direction away from
the failure. Therefore ring topologies are recommended.
A typical ring topology is illustrated in Figure 2-22.
Figure 2-22. Typical ring topology
Cable connection examples for stacked rings are illustrated in Figure 2-23.
Figure 2-23. Cable connection examples for ring topologies
2-switch ring
4-switch ring

HP 2920 Specifications

General

Layer	Layer 3
Power Device	Internal power supply
Ports	24 or 48 x 10/100/1000 ports
Stacking	Yes, up to 4 units
Management	Web, CLI, SNMP
Jumbo Frame Support	Yes
Routing Protocol	Static, RIP, OSPF
VLANs	4094
Power Supply	100-240V AC, 50/60Hz
Operating Temperature	0°C to 45°C (32°F to 113°F)
Power over Ethernet (PoE)	Available on some models (PoE+)