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Configuring the Switch Modules using the Menu-driven Interface
— IGMP Snooping—Toggle to enable or disable Internet Group Management Protocol
— Switch GVRP—Toggle to enable or disable GARP VLAN Registration Protocol
— Telnet Status—Toggle to enable or disable access to the interconnect switch over
— Web Status—Toggle to enable or disable use of a Web-based browser to manage the
— Group Address Filter Mode—Toggle to select the IGMP group address filter mode
— Scheduling Mechanism for CoS Queues—Toggle to select the Class of Service
— Trunk Load Sharing Algorithm—Toggle to select how port load sharing will be
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HP CONFIDENTIAL Codename: DeLorean Part Number: 322858-001 Last Saved On: 2/4/03 11:56 AM
The switch module 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forwarding table entries that are out-of-date or no longer are used.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 switch module 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. IGMP snooping enables the switch module to register IGMP
packets being forwarded through the switch in order to obtain multicast membership
information from them and learn which ports are attached to which multicast group
members. For additional information, refer to the "Configuring IGMP Snooping"
section later in this chapter.
(GVRP) on the interconnect switch. GVRP allows dynamic propagation of VLAN
registration information across the GVRP-enabled switches on the same network. For
additional information, refer to the "Configuring GVRP" section later in this chapter.
the network using the Telnet protocol.
interconnect switch.
for forwarding multicast packets. The options are Forward All, Forward All
Unregistered, and Filtered All Unregistered.
queue scheduling option: RoundRobin or Strict. If you select Strict, when the
highest priority queue is full, those packets are 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.
determined. The multitrunk load sharing options are destination address, source
address, and source and destination address.
HP ProLiant BL e-Class C-GbE Interconnect Switch Menu-driven Interface Reference Guide
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