3com S330 ユーザーズマニュアル
1
S
YSTEM
D
ESCRIPTION
This chapter describes the SuperStack
®
II PathBuilder
®
S330 and SuperStack
®
II
PathBuilder
®
S310 WAN access switches (PathBuilder S330/S310), and lists
PathBuilder S330 and PathBuilder S310 system specifications. It includes the
following sections:
following sections:
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PathBuilder S330/S310
Overview
Overview
The PathBuilder S330 WAN access switch provides cost-effective T1/nxT1 or
E1/nxE1 connections between local campus and enterprise networks via private
leased line or public carrier ATM services so you can extend high-speed Internet
access, Frame Relay, and ATM network service, as well as voice and video, out to
your branch offices. Using the built-in ATM Forum standard-based inverse
multiplexing capabilities, you can integrate voice, video, and high-speed data
services over the same WAN link.
E1/nxE1 connections between local campus and enterprise networks via private
leased line or public carrier ATM services so you can extend high-speed Internet
access, Frame Relay, and ATM network service, as well as voice and video, out to
your branch offices. Using the built-in ATM Forum standard-based inverse
multiplexing capabilities, you can integrate voice, video, and high-speed data
services over the same WAN link.
The PathBuilder S330 and PathBuilder S310 use basically the same hardware, with
the PathBuilder S330 providing more interfaces. The following subsections
describe the features of each unit in greater detail.
the PathBuilder S330 providing more interfaces. The following subsections
describe the features of each unit in greater detail.
PathBuilder S330
Features
The PathBuilder S330 base platform offers the following features:
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T1/nxT1 ATM UNI or E1/nxE1 ATM UNI with up to four interfaces for
aggregated high-speed of 6Mbps WAN access. Each user-to-network interface
(UNI) can be used alone or bundled into a group using the Inverse Multiplexing
for ATM (IMA) standard, accommodating branch office growth from a single
T1/E1 (1.5/2 Mbps) bandwidth to four T1s/E1s (6/8 Mbps).
aggregated high-speed of 6Mbps WAN access. Each user-to-network interface
(UNI) can be used alone or bundled into a group using the Inverse Multiplexing
for ATM (IMA) standard, accommodating branch office growth from a single
T1/E1 (1.5/2 Mbps) bandwidth to four T1s/E1s (6/8 Mbps).
The PathBuilder S330 allows up to 70 msec of differential delay between
T1s/E1s in a single IMA bundle. The unit also supports an automatic
mechanism for removing failed lines from an IMA bundle, ensuring the
resiliency required for your mission-critical applications.
T1s/E1s in a single IMA bundle. The unit also supports an automatic
mechanism for removing failed lines from an IMA bundle, ensuring the
resiliency required for your mission-critical applications.
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Multiple connections to Ethernet segments over ATM WAN and support of
bridging, including learning, aging, filtering, and Spanning Tree, through the
Ethernet module.
bridging, including learning, aging, filtering, and Spanning Tree, through the
Ethernet module.
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Support of Frame Relay (service and network) interworking, ATM DXI, and
SDLC/HDLC pass-through, through the high-performance serial frame data
interface.
SDLC/HDLC pass-through, through the high-performance serial frame data
interface.