IBM 32R1860 - Nortel Layer 2/3 Copper GbE Switch Module User Manual - page 4
BNT Layer 2/3 Copper and Fiber Gigabit Ethernet Switch Modules for IBM BladeCenter
4
Features and specifications
The BNT Layer 2/3 Copper and Fiber Gigabit Ethernet Switch Modules for standard mode of operation
includes the following features and functions:
Internal ports
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14 internal full-duplex Gigabit ports, one connected to each of the blade servers in the
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BladeCenter unit
Two internal full-duplex 10/100 Mbps ports connected to the management module
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External ports
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Copper switch: Six 1000BASE-T copper RJ-45 connections for making 10/100/1000 Mbps
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connections
Fiber switch: Six 1000BASE-SX SFP transceiver-based LC fiber connections for making 1000
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Mbps connections
An RS-232 serial port that provides an additional means to install software and configure the
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switch module
Scalability and performance
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Autosensing 10/1000/1000 Mbps external Ethernet ports for bandwidth optimization
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Non-blocking architecture with wire-speed forwarding of traffic
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Media access control (MAC) address learning: automatic update, supports up to 16 K MAC
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addresses
Up to 128 IP interfaces per switch
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Static, EtherChannel, and LACP (IEEE 802.3ad) link aggregation, up to 6 Gb of total bandwidth
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per switch, up to three trunk groups, and up to six ports per group
Support for jumbo frames (up to 9216 bytes)
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Broadcast/multicast storm control
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IGMP snooping for limit flooding of IP multicast traffic (IGMP V1, V2, and V3)
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IGMP filtering to control multicast traffic for hosts participating in multicast groups (IGMP V1, V2,
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and V3)
Configurable traffic distribution schemes over trunk links based on source/destination IP
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addresses, MAC addresses, or both
Fast port forwarding and fast uplink convergence for rapid STP convergence
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Availability and redundancy
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VRRP for Layer 3 router redundancy
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IEEE 802.1D STP for providing Layer 2 redundancy with PVRST+
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IEEE 802.1s Multiple STP (MSTP) for topology optimization, up to 128 STP instances are
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supported by single switch
IEEE 802.1w Rapid STP (RSTP) provides rapid STP convergence for critical delay-sensitive,
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traffic-like voice or video
Layer 2 Trunk Failover to support active/standby configurations of network adapter teaming on
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blades