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Database Requirements

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9033276

Database Requirements

The ELS10-27MDU supports a maximum of 2,048 possible database 
entries. Under the default configuration, 559 of these entries are used by 
the system, leaving 1,489 entries available for learning. With the first 
conversation requiring 29 database entries, and each additional 
conversation requiring 2 entries, a maximum of 730 conversations can take 
place simultaneously without flooding. This becomes important as 
multiple ELS10-27MDU switches are cascaded. (See Figure 1 for an 
example of cascaded switches.) For example, if there is one client 
connected to each of the 10Mbps ports, a hierarchy consisting of three 
ELS10-27MDU switches could involve 72 simultaneous conversations. 
Based on a balanced topology of cascaded switches, Table 2 shows that a 
maximum of 5 levels could be achieved without flooding taking place, and 
the percentage of supported simultaneous conversations at different levels 
of cascaded switches, assuming all user ports are active.

Table 2. Database Entries

Number of 

Levels

Number of 

Switches

Number of 

Active Users

Percent 

Supported

1

1

24

100

2

3

72

100

3

7

168

100

4

15

360

100

5

31

744

100

6

63

1512

49.3

7

127

3048

23.9

Содержание SmartSTACK ELS10-27MDU

Страница 1: ...9033276 ELS10 27MDU User s Guide Addendum...

Страница 2: ......

Страница 3: ...RON SYSTEMS BE LIABLE FOR ANY INCIDENTAL INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES WHATSOEVER INCLUDING BUT NOT LIMITED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONT...

Страница 4: ...n radiate radio frequency energy and if not installed in accordance with the operator s manual may cause harmful interference to radio communications Operation of this equipment in a residential area...

Страница 5: ...t out in the Radio Interference Regulations of the Canadian Department of Communications Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appare...

Страница 6: ...1 EN 60950 Equipment Type Environment Networking Equipment for use in a Commercial or Light Industrial Environment We the undersigned hereby declare under our sole responsibility that the equipment pa...

Страница 7: ...duct Overview 1 Configuring the ELS10 27MDU 3 Additional Commands 3 Address Limiting 3 Trapcontrol 3 VLANs on the ELS10 27MDU 4 Configuring VLAN 7 Adding a VLAN 7 Deleting a VLAN 7 Database Requiremen...

Страница 8: ...vi Contents...

Страница 9: ...product installation in MDU environments in which security and restriction of data traffic between user ports are the primary considerations This is accomplished by using the special VLAN configurati...

Страница 10: ...TATUS STATUS RESET COM CPU PWR STATUS LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK LINK DOWNLINKS 10 100 BASE TX UPLINK 10 100 BASE TX LNK LNK 18X PORT STATUS MODE FDX COL RX 100 A...

Страница 11: ...ddress Limiting Address Limiting is the ability to configure a limit on a per port basis on the number of end user devices that have connectivity from a single port The command for Address Limiting is...

Страница 12: ...ged packets and the decision to either drop them or forward them to the forwarding process The forwarding rules deal with forwarding packets utilizing topology restrictions the filtering database queu...

Страница 13: ...LAN When packets are received on the 10Mbps ports they can only be forwarded to the CPU and or the 100Mbps uplink The 100Mbps downlinks are configured the in the same manner This restricts traffic bet...

Страница 14: ...0Mbps port user 17 0x12 10Mbps port user 18 0x13 10Mbps port user 19 0x14 10Mbps port user 20 0x15 10Mbps port user 21 0x16 10Mbps port user 22 0x17 10Mbps port user 23 0x18 10Mbps port user 24 0x19 1...

Страница 15: ...eate a new VLAN type vlan add PORT RANGE NAME VLAN ID IPADDR IPMASK The port range is a number from 1 to 27 The Name can be up to 32 ascii characters optional The VLAN ID is the hexidecimal id number...

Страница 16: ...cascaded See Figure 1 for an example of cascaded switches For example if there is one client connected to each of the 10Mbps ports a hierarchy consisting of three ELS10 27MDU switches could involve 72...

Страница 17: ...of the ELS10 27MDU has been designed for use in a secure multi dwelling unit environment for which certain features of the ELS10 27TX are not desired The latest ELS10 27MDU release notes should be rev...

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