JPS6418333A - Address filter system - Google Patents
Address filter systemInfo
- Publication number
- JPS6418333A JPS6418333A JP62173803A JP17380387A JPS6418333A JP S6418333 A JPS6418333 A JP S6418333A JP 62173803 A JP62173803 A JP 62173803A JP 17380387 A JP17380387 A JP 17380387A JP S6418333 A JPS6418333 A JP S6418333A
- Authority
- JP
- Japan
- Prior art keywords
- address
- compared
- packet
- lan
- read out
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To decrease the packet passing time of a bridge device by arranging addresses in the descending order in generating a sender address table so as to decide coincidence/dissidence in a few number of times at address retrieval. CONSTITUTION:A bridge device 30 always monitors a sender address SA of a packet generated in an LAN 10 and stores it in an SA table 32 in detecting the address SA. In this case, the address is compared with the address stored already in the quantity and the result is arranged in the ascending order. In detecting a destination address DA generated in the LAN 10, the addresses SA and DA in the table 32 are compared in the table 32 and when they are coincident, the packet is aborted and when they are dissident, the packet is passed through the LAN 20. In this comparison, the address of the 1/2 division point (the N/2-th) of the entire area (N sets) stored is read out and they are compared. In case of SA(N/2-th)<DA, the address of {N/2-(N/2)/2}-th is read out and compared. The operation above is repeated. The number of times of repetition K is expressed as a logarithms of N using 2 as its base.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173803A JPS6418333A (en) | 1987-07-14 | 1987-07-14 | Address filter system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173803A JPS6418333A (en) | 1987-07-14 | 1987-07-14 | Address filter system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6418333A true JPS6418333A (en) | 1989-01-23 |
Family
ID=15967449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62173803A Pending JPS6418333A (en) | 1987-07-14 | 1987-07-14 | Address filter system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6418333A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02190048A (en) * | 1989-01-18 | 1990-07-26 | Nec Corp | Address filter |
JPH04273735A (en) * | 1991-02-28 | 1992-09-29 | Nec Corp | Local area network bridge device |
JPH04298137A (en) * | 1991-03-27 | 1992-10-21 | Tokyo Electric Co Ltd | Communication controller |
-
1987
- 1987-07-14 JP JP62173803A patent/JPS6418333A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02190048A (en) * | 1989-01-18 | 1990-07-26 | Nec Corp | Address filter |
JPH04273735A (en) * | 1991-02-28 | 1992-09-29 | Nec Corp | Local area network bridge device |
JPH04298137A (en) * | 1991-03-27 | 1992-10-21 | Tokyo Electric Co Ltd | Communication controller |
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