Справочник Пользователя для 3com Switches

8 x 1000BASE-SX ports

SuperStack II Switch 9000 

   (Layer 3 switch)

SuperStack II Switch 3800

   (Layer 3 Switch) 

Floor 2

Basement

Floor 1

Floor 3

PCs

SuperStack

®

 II Switch 1100 with 

   Gigabit Ethernet module

Dedicated 10 Mbps 

   to power user

Dedicated 10 Mbps 

   and 100 Mbps 

      Ethernet

100 Mbps

Gigabit 

   Ethernet

1000 

   Mbps

1000 

   Mbps

100 Mbps power users

SuperStack II Switch 3800 (Layer 3 switch)

SuperStack II Switch 3300

   with Gigabit Ethernet module

      and SuperStack II Switch 3900   

Legacy router

Gigabit Ethernet (1000 

   Mbps) server farm

100 Mbps

1000 Mbps

10 Mbps

Transcend

®

 network 

management console

For dramatic performance boost in corpo-
rate routed networks, the SuperStack II
Switch 9000 delivers wire-speed IProuting
embedded in ASIC technology in addition to
Gigabit Ethernet switching.

It offloads the routing of intranet traffic from
slow legacy routers while keeping under
control broadcast/multicast traffic and fault
propagation in appropriate subnetworks.

The SuperStack II Switch 9000 offers
affordable leading-edge Layer 3
switching technology for 10 times the
performance of intranets. Wire-speed
Layer 3 switching (IP routing) and
Layer 2 switching are embedded in
ASICs to forward at nonblocking speed
any-to-any intranet traffic while broad-
cast/multicast traffic and fault
propagation are kept under control in
appropriate subnetworks.

The SuperStack II Switch 9000 not

only aggregates at Gigabit speed the
traffic from Ethernet and Fast Ethernet
workgroups, but it removes router
bottlenecks that occur in corporate
networks when high-speed, any-to-any
intranet traffic chokes software-based
legacy routers.

Key features include:

■

Full line-rate nonblocking routing
performance on all ports (over 
11.9 million IP packets per second
and 17.7 Gbps throughput)

■

Support for standards-based routing
protocols: RIP/RIP v2

■

Eight 1000BASE-SX Gigabit ports

■

Support for up to 12,000 MAC
addresses for handling networks of
virtually any size

■

Elastic port buffering to enable on-
the-fly allocation of memory for
automatic performance optimization
based on network traffic

SuperStack II Switch 9000 
Gigabit Ethernet Layer 3 Switching

■

IEEE 802.3x flow control on all full-
duplex ports to improve performance
and minimize packet losses

■

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)

■

User-definable packet filters to control
traffic flows

■

Support for spanning tree per VLAN

■

Class of Service embedded in ASIC
PACE technology, 802.1D 
(incorporating 802.1p)

■

RMON support for four groups

■

Simplicity and scalability of
10/100/1000 Ethernet in the
industry-leading SuperStack II
system architecture