HP Cluster Platform Core Components Overview

• VLAN support and tagging: support complete 802.1Q (4,096 VLAN IDs) and 256 VLANs
simultaneously
• Traffic prioritization (802.1p): allows real-time traffic classification into 8 priority levels
mapped to 4 queues
• Per-port broadcast throttling: selectively configure broadcast control on heavy traffic port
uplinks
• Stacking capability: single IP address management for a virtual stack of up to 16 switches
• HP Auto-MDIX: automatically adjusts for straight-through or crossover cables on all
10/100/1000 ports
• Source port filters: allows only specified ports to communicate with each other
• Troubleshooting: ingress/egress port monitoring enables network problem solving
The principal difference between the two models is in the number of ports, as shown in
Figure 2-12. The following sections describe the HP ProCurve 2848 switch.
Figure 2-12 HP ProCurve Switch 2848 and 2824
2.6.4 ProCurve 2848 Switch Overview
The HP ProCurve 2848 is a multi-port Gigabit switch that can be connected to an external
redundant power supply (RPS) unit. The characteristics of the HP ProCurve 2848 switch include:
• 48 auto-sensing 10/100/1000Base-T RJ-45 ports
• dual-personality ports — 10/100/1000Base-T RJ-45 ports or mini-GBIC slots for optional
fiber-optic connectivity such as Gigabit-SX, LX, or LH
• plug-and-play networking
• automatic learning of the network addresses
• support for the Spanning Tree Protocol to eliminate network loops
• 96 Gbps backplane with up to 71.4 mpps
• stacking capability: single IP address management for a virtual stack of up to 16 switches
• port security to prevent unauthorized access using MAC address lockdown
2.6.4.1 Front View of the HP ProCurve 2848 Switch
The HP ProCurve 2848 switch has 48 auto-sensing 10/100/1000Base-T RJ-45 ports that are spread
across the front panel. To the right are four triple-speed copper gigabit ports, and below these
are four mini-GBIC slots that accept fiber-optic cables. These eight slots are referred to as
dual-personality ports because you can use either the copper port or the corresponding fiber-optic
port. Only four of the ports can be used at any one time. By default, the RJ-45 connectors are
enabled. If a mini-GBIC is installed in a slot, it is enabled and the associated RJ-45 connector is
disabled. If the mini-GBIC is removed, the associated RJ-45 port is automatically re-enabled. ???
shows the front panel of the ProCurve 2848 switch.
2.6 HP ProCurve Switches 41