ProLiant BL p-Class GbE Interconnect Switch Web-based Interface Reference Guide

Configuring the GbE Interconnect Switch using the Web-based Interface
The GbE Interconnect Switch enters into its forwarding table the mapping between
the MAC address of the device and the Ethernet port to which the device is attached.
This information is used to forward packets. This reduces the traffic congestion on
the network, because packets are forwarded to the destination port only, instead of
being forwarded to all ports.
The MAC address aging timer prunes the forwarding table addresses entries that are
no longer used. Dynamic forwarding table entries, which are made up of MAC
addresses and their associated port numbers, are deleted from the table if they are not
seen within the aging timeout. The aging time can be from 10 to 1,000,000 seconds
with a default value of 300 seconds. A very long aging time can result in dynamic
forwarding table entries that are out-of-date or no longer are used.
If the aging time is too short, however, many entries may be aged out too soon. This
will result in a high percentage of received packets whose destination addresses
cannot be found in the forwarding table. In this case the GbE Interconnect Switch
will broadcast the packet to all ports, negating many of the benefits of having a
switch.
Static forwarding entries are not affected by the aging time.
— IGMP Snooping—Select to enable or disable Internet Group Management Protocol
(IGMP) Snooping. IGMP Snooping enables the GbE Interconnect Switch to register
IGMP packets being forwarded through the GbE Interconnect Switch in order to
obtain multicast membership information from them, such as which ports contain
multicast members. For additional information, refer to the “Configuring IGMP
Snooping” section later in this chapter.
— GVRP Status—Select to enable or disable GARP VLAN Registration Protocol
(GVRP) on the GbE Interconnect Switch. GVRP allows dynamic propagation of
VLAN registration accross the GVRP enabled switches on the same network. For
additional information, refer to the “Setting the Port VLAN ID for a Port” section
later in this chapter.
— Telnet Status—Select to enable or disable access to the GbE Interconnect Switch
over the network using the Telnet protocol.
— Default Telnet/RS232 Interface— Set either the CLI or menu-driven interface as
the default Telnet/RS232 interface.
— Web Status—Select to enable or disable management of the GbE Interconnect
Switch over the Web.
— Group Address Filter Mode—Select one of the forwarding or filtering options to
set the IGMP group address filter mode for forwarding multicast packets.
— Scheduling Mechanism for CoS Queues—Select one of the Class of Service queue
scheduling options. If you select Strict, then when the highest priority queue is full,
those packets will be the first to be forwarded. If you select RoundRobin, the
forwarding is based on the settings made on the Class of Service Configuration
screen. For more information, refer to the “Configuring the Class of Service, Default
Port Priority, and Traffic Class” section later in this chapter.
2-10 HP ProLiant BL p-Class GbE Interconnect Switch Web-based Interface Reference Guide