HP ProCurve 2910al Switch User Manual

IP Routing Features
Configuring DHCP Relay
■ Relay agents without Option 82 can exist in the path between Option 82
relay agents and an Option 82 server. The agents without Option 82 will
forward client requests and server responses without any effect on Option
82 fields in the packets.
■ If the routing switch cannot add an Option 82 field to a client’s DHCP re-
quest due to the message size exceeding the MTU (Maximum Transmis-
sion Unit) size, then the request is forwarded to the DHCP server without
Option 82 data and an error message is logged in the switch’s Event Log.
■ Because routing is not allowed between the Management VLAN and
other VLANs, a DHCP server must be available in the Management
VLAN if clients in the Management VLAN require a DHCP server.
■ If the Management VLAN IP address configuration changes after
mgmt-vlan has been configured as the remote ID suboption, the
routing switch dynamically adjusts to the new IP addressing for all
future DHCP requests.
■ The Management VLAN and all other VLANs on the routing switch
use the same MAC address.
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HP ProCurve 2910al Switch Specifications

General

Model	HP ProCurve 2910al Switch
Layer	Layer 3
Jumbo Frame Support	Yes
Power Device	Internal power supply
VLAN Support	Yes
Power Supply	100-240 VAC, 50/60 Hz
Ports	24 or 48 x 10/100/1000 ports
Uplink Ports	4 x SFP (mini-GBIC)
Stacking	Yes
MAC Address Table Size	32000 entries
Routing Protocol	RIP, OSPF, BGP, IGMP
Remote Management Protocol	SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP, TFTP
Features	VLAN, QoS, IPv6, ACLs
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3af
Operating Temperature	0 to 45°C
Operating Humidity	15% to 95% (noncondensing)
Power over Ethernet (PoE)	PoE+ (802.3at) on PoE+ models, PoE (802.3af) on PoE models