EP0817439A2
Expired / Lapsed
EP
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Exchange apparatus and related method
Assignee: Sony Corp
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Filing: 1997-07-02
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Granted: —
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Expires: 2017-07-02
Abstract
Abstract In exchange apparatus for exchanging packets based on a predetermined exchange system, comprising a plurality of input ports into which the packets are input, an input port identifier adding means for adding to a header region of each of the packets an input port identifier indicating the input port from which the packet was input, an output port identifier adding means for routing each of the packets to an output port and adding an output port identifier indicating the routed output port to each of the packets based on address information included in the header region and the input port identifier, and a packet exchanging means for exchanging the packets and outputting the same from the routed output port based on the added output port identifier.
Inventors
- 👤 Yoshiyuki Kunito
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 08:43
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L49/00; H04L49/30; H04L49/3081; H04L12/42; H04L12/427; H04L12/433; H04L49/10; H04L49/111; H04L49/25; H04L49/253; H04L49/254; H04L49/3009; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5678; H04L2012/568; H04L49/50
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
126 words
An exchange apparatus for exchanging packets based on a
predetermined exchange system, comprising: a plurality of input ports into which said packets are
input, an input port identifier adding means for adding to a header
region of each of said packets an input port identifier
indicating the input port from which said packet was input; an output port identifier adding means for routing each of
said packets to an output port and adding an output port
identifier indicating said routed output port to each of said
packets based on address information included in said header
region and said input port identifier; and a packet exchanging means for exchanging said packets and
outputting the same from said routed output port based on said
added output port identifier.
Claim 2
Dependent Claim
39 words
An exchange apparatus as set forth in claim 1, further
comprising a translation memory provided commonly for said
plurality of input ports and wherein each of said packets input
from said input ports is routed using said translation memory.
Claim 3
Dependent Claim
35 words
An exchange apparatus as set forth in claim 1 or 2, wherein
said input port identifier is used for identification of said
input port in the routing processing by said output port
identifier adding means.
Claim 4
Dependent Claim
98 words
An exchange apparatus as set forth in any one of the
preceding claims, wherein said output port identifier adding
means includes a translation memory common to the plurality of
input ports, and said translation memory is arranged: to identify the input port from which a packet was input
using an input port identifier added by said input port
identifier adding means; and to carry out routing by searching through a table and
translating based on an address included in a header of said
packet to generate an output port identifier designating an
output port for outputting said packet.
Claim 5
Dependent Claim
37 words
An exchange apparatus as set forth in claim 4, wherein
said address is a virtual path identifier and virtual channel
identifier, and said output port identifier is a new virtual path
identifier and new virtual channel identifier.
Claim 6
Dependent Claim
30 words
An exchange apparatus as set forth in any one of the
preceding claims, wherein said exchange system is an asynchronous
transfer mode (ATM), and said packet is an ATM cell.
Claim 7
Dependent Claim
107 words
An exchange method for exchanging packets based on a
predetermined exchange system, including the steps of: inputting said packets from a plurality of input ports; adding to a header region of each of said packets an input
port identifier indicating the input port from which said packet
was input; routing each of said packets to an output port based on
address information included in said header region and said input
port identifier; adding an output port identifier indicating said routed
output port to each of said packets; and exchanging said packets and outputting the same from said
routed output port based on said added output port identifier.
Claim 8
Dependent Claim
34 words
An exchange method as set forth in claim 7, further
comprising using a translation memory provided commonly for said
plurality of input ports when routing each of the packets input
from said input ports.
Claim 9
Dependent Claim
34 words
An exchange method as set forth in claim 7 or 8, wherein
said input port identifier is used for identification of said
input port in the routing processing when adding said output port
identifier.
Claim 10
Dependent Claim
82 words
An exchange method as set forth in any one of claims 7 to 9
further comprising using a translation memory, which is common to
the plurality of input ports, to identify the input port from
which a packet was input using an input port identifier, and to
carry out routing by searching through a table and translating
based on an address included in a header of said packet to
generate an output port identifier designating an output port for
outputting said packet.
Claim 11
Dependent Claim
37 words
An exchange method as set forth in claim 10, wherein said
address is a virtual path identifier and virtual channel
identifier, and said output port identifier is a new virtual path
identifier and new virtual channel identifier.
Claim 12
Dependent Claim
31 words
An exchange method as set forth in any one of claims 7 to
11, wherein said exchange system is an asynchronous transfer mode
(ATM), and said packet is an ATM cell.
References Cited (Backward Citations)
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