3Com Switches Owner's Manual page 19

The SuperStack II Switch 9100 enables
practical, cost-effective, and high-per-
formance deployment of copper Gigabit
Ethernet as an effective interswitch,
switch-to-server, and general-purpose
backbone technology.
Key features include:
Supports up to 128,000 MAC
addresses for handling networks of
virtually any size
Multicast filtering using IGMP
snooping
Port mirroring for copying data from
any port to another port with a net-
work analyzer attached
RMON support for four groups
IEEE 802.1D (incorporating 802.1p)
Class of Service support and dual pri-
ority queuing
Web browser interface for manage-
ment and configuration functions
Full line-rate nonblocking switching
performance
Support for trunking (multiple par-
allel active links) on Gigabit Ethernet
ports (up to four ports per trunk
group)
Class of Service embedded in ASIC:
PACE technology and 802.1D
(incorporating 802.1p)
Policy-based Quality of Service prior-
itization and allocation for traffic
groups defined by topology or group
of users, individual address, and
physical path
Simplicity and scalability of
100/1000 Ethernet in the industry-
leading SuperStack II system
architecture
IEEE 802.3x flow control on all full-
duplex ports to improve performance
and minimize packet loss
Full VLAN implementation:
– Port and tagged VLANs (802.1Q)
– Protocol-based VLANs to allocate
bandwidth and enforce manage-
ment policies among different
protocols (e.g., IP, IPX, NetBIOS,
DECnet)