HP 5120 EI Series Datasheet

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• Smart link
allows 50 ms failover between links
• Spanning Tree/MSTP, RSTP
provides redundant links while preventing network loops
• Rapid Ring Protection Protocol (RRPP)
connects multiple switches in a high-performance ring using standard Ethernet technology;
traic can be rerouted around the ring in less than 50 ms, reducing the impact on traic and
applications
• Intelligent Resilient Framework (IRF)
creates virtual resilient switching fabrics, where two or more switches perform as a
single L2 switch and L3 router; switches do not have to be co-located and can be part of
a disaster-recovery system; servers or switches can be attached using standard LACP for
automatic load balancing and high availability; can eliminate the need for complex protocols
like Spanning Tree Protocol, Equal-Cost Multipath (ECMP), or VRRP, thereby simplifying
network operation
Layer 2 switching
• 16K MAC address table
provides access to many Layer 2 devices
• VLAN support and tagging
supports IEEE 802.1Q with 4,094 simultaneous VLAN IDs
• GARP VLAN Registration Protocol
allows automatic learning and dynamic assignment of VLANs
• IEEE 802.1ad QinQ and selective QinQ
increase the scalability of an Ethernet network by providing a hierarchical structure; connect
multiple LANs on a high-speed campus or metro network
• 10GbE port aggregation
allows grouping of ports to increase overall data throughput to a remote device
• Internet Group Management Protocol (IGMP) and Multicast Listener
Discovery (MLD) protocol snooping
controls and manages the ooding of multicast packets in a Layer 2 network
• Per-VLAN Spanning Tree Plus (PVST+)
allows each VLAN to build a separate spanning tree to improve link bandwidth usage in
network environments with multiple VLANs
Layer 3 services
• Address Resolution Protocol (ARP)
determines the MAC address of another IP host in the same subnet; supports static ARPs;
gratuitous ARP allows detection of duplicate IP addresses; proxy ARP allows normal ARP
operation between subnets or when subnets are separated by a Layer 2 network
• Dynamic Host Conguration Protocol (DHCP)
simplies the management of large IP networks; supports client; DHCP Relay enables DHCP
operation across subnets
• Loopback interface address
denes an address that can always be reachable, improving diagnostic capability
• User Datagram Protocol (UDP) helper function
allows UDP broadcasts to be directed across router interfaces to specic IP unicast or subnet
broadcast addresses and prevents server spoong for UDP services such as DHCP
• Route maps
provide more control during route redistribution; allow ltering and altering of route metrics
Data sheet | HP 5120 EI Switch Series

HP 5120 EI Series Specifications

General

Brand	HP
Model	5120 EI Series
Category	Switch
Language	English