HP A5120 EI Series Configuration Guide

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Contents
Ethernet interface configuration ····································································································································· 1
Ethernet interface naming conventions ··························································································································· 1
Configuring basic settings of an Ethernet interface ······································································································· 1
Configuring a combo interface ······························································································································· 1
Configuring basic settings of an Ethernet interface ······························································································ 2
Setting speed options for auto negotiation on an Ethernet interface ·································································· 3
Configuring generic flow control on an Ethernet interface ·················································································· 4
Configuring link change suppression on an Ethernet interface ··········································································· 5
Configuring loopback testing on an Ethernet interface ························································································ 6
Configuring a port group ········································································································································ 7
Configuring traffic storm protection························································································································ 7
Setting the statistics polling interval ························································································································ 9
Enabling the auto power-down function on an Ethernet interface ··································································· 10
Configuring jumbo frame support ······················································································································· 10
Enabling single-port loopback detection on an Ethernet interface··································································· 11
Enabling multi-port loopback detection··············································································································· 12
Setting the MDI mode of an Ethernet interface ·································································································· 13
Enabling bridging on an Ethernet interface ······································································································· 14
Testing the cable connection of an Ethernet interface ······················································································· 14
Displaying and maintaining an Ethernet interface ····································································································· 15
Loopback and null interface configuration ················································································································· 17
Loopback interface ························································································································································· 17
Introduction to loopback interface ······················································································································· 17
Configuring a loopback interface ······················································································································· 17
Null interface ·································································································································································· 18
Introduction to null interface ································································································································· 18
Configuring null 0 interface ································································································································· 18
Displaying and maintaining loopback and null interfaces ························································································ 18
MAC address table configuration ································································································································ 20
Overview········································································································································································· 20
How a MAC address table entry is created ······································································································· 20
Types of MAC address table entries ··················································································································· 20
MAC address table-based frame forwarding ···································································································· 21
Configuring the MAC address table ···························································································································· 21
Manually configuring MAC address table entries ····························································································· 21
Disabling MAC address learning ························································································································ 22
Configuring the aging timer for dynamic MAC address entries ······································································ 23
Configuring the MAC learning limit on ports ····································································································· 24
Displaying and maintaining MAC address tables ····································································································· 24
MAC address table configuration example ················································································································ 25
MAC Information configuration ··································································································································· 26
Overview········································································································································································· 26
Introduction to MAC Information ························································································································· 26
How MAC Information works ······························································································································ 26
Configuring MAC Information ······································································································································ 26
Enabling MAC Information globally ··················································································································· 26
Enabling MAC Information on an interface ······································································································· 26
Configuring MAC Information mode ·················································································································· 27

HP A5120 EI Series Specifications

General

Uplink Ports	4 x SFP
Stacking	No
Management	CLI, Web, SNMP
Routing Protocols	RIP, OSPF
Power Supply	AC
MAC Address Table Size	16K
Dimensions	440 x 430 x 44 mm
Operating Temperature	0°C to 45°C
Operating Humidity	10% to 90% non-condensing
Model	HP A5120-24G EI Switch (JG234A)
VLANs	4094