·ieee802.3 compliant

    ·ieee802.3u compliant

    ·ieee802.3z compliant

    ·ieee802.3ab compliant

    ·ieee802.1p priority queues

    ·ieee802.3x flow control in full duplex mode

    ·nway auto-negotiation

    ·full and half-duplex for both 10mbps and 100mbps connections. the gigabit ethernet extension module operates at full-duplex only. full-duplex allows the switch port to simultaneously transmit and receive data, and only works with connections to full-duplex capable end stations and switches. connections to a hub must take place at half-duplex

    ·supports single-mode and multi-mode connections

    ·store and forward switching scheme capability to support rate adaptation and protocol conversion

    ·auto-polarity detection and correction of incorrect polarity on the 10/100mbps tx ports

    ·data forwarding rate 14,880 pps per port at 100% of wire-speed for 10mbps speed

    ·data forwarding rate 148,810 pps per port at 100% of wire-speed for 100mbps speed

    ·data forwarding rate 1,488,100 pps per port at 100% of wire-speed for 1000mbps speed (version a2 and later)

    ·data filtering rate eliminates all error packets, runts, etc. at 14,880 pps per port at 100% of wire-speed for 10mbps speed

    ·data filtering rate eliminates all error packets, runts, etc. at 148,810 pps per port at 100% of wire-speed for 100mbps speed

    ·data filtering rate eliminates all error packets, runts, etc. at 1,488,100 pps per port at 100% of wire-speed for 1000mbps speed

    ·forwarding 64 to1536 byte frames with correct crc checksum

    ·layer 2 switching based on mac address

    ·address handling : auto-learning , auto-aging

    ·address table : support addresses up to 17k

    ·buffer size: 8 megabytes (des-1218 ) 10 megabytes (des-1226)

    ·broadcast storm control

    ·supports 9 port-based vlan groups

    ·port trunking

    ·back pressure in half-duplex

    ·rs-232 dce console port for switch management