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Cisco Systems IntelligentGigabit Ethernet Switch Modules for the IBMBladeCenter, Software Configuration Guide
24R9746
Chapter1 Overview
Features
•Port blocking on forwarding unknown unicast and multicast traffic
•Per-port broadcast storm control for preventing faulty end stations from degrading overall system
performance with broadcast storms
•Port Aggregation Protocol (PAgP) and Link Aggregation Control Protocol (LACP) for automatic
creation of EtherChannel links
•Internet Group Management Protocol (IGMP) snooping for IGMP versi ons 1, 2, and 3 to limit
flooding of IP multicast traffic
•IGMP report suppression for sending only one IGMP report per multicast router query to the
multicast devices (supported only for IGMPv1 or IGMPv2 queries)
•IGMP snooping querier support to configure switch to generate pe riodic IGMP General Query
messages
•Multicast VLAN registration (MVR) to continuously send multicast streams in a multicast VLAN
while isolating the streams from subscriber VLANs for bandwidth and security reasons
•IGMP filtering for controlling the set of multicast groups to which hosts on a switch port can belong
•IGMP throttling for configuring the action when the maximum number of entries is in the IGMP
forwarding table
•Protected port (private VLAN edge port) option for restricting the forwarding of traffic to
designated ports on the same switch
•Dynamic address learning for enhanced security
Manageability
•Address Resolution Protocol (ARP) for identifying a switch through its IP address and its
corresponding MAC address
•Unicast MAC address filtering to drop packets with specific source or destination MAC addresses
•Cisco Discovery Protocol (CDP) versions 1 and 2 for network topology discovery and mapping
between the switch and other Cisco devices on the network
•Network Time Protocol (NTP) for providing a consistent time stamp to all switches from an external
source
•Directed unicast requests to a TFTP server for obtaining software upgrades from a TFTP server
•Default configuration storage in flash memory to ensure that the switch can be connected to a
network and can forward traffic with minimal user intervention
•In-band management access through the embedded device manager through a Netscape Navigator
or Internet Explorer session
•In-band management access through up to 16 simultaneous Telnet connections for multiple
command-line interface (CLI)-based sessions over the network
•In-band management access through up to five simultaneous, encrypted Secure Shell (SSH)
connections for multiple CLI-based sessions over the network (only available in the enhanced
cryptographic software image)
•In-band management access through SNMP versions 1, 2c, and 3 ge t and set requests