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5 Data Services - Transparent Bridging
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If the bridge is turned on, the filtering database is empty. Over
time it is filled with entries via the learning mechanism.
Ethernet frames arriving on any port are inspected for their source
MAC address and put into the filtering database together with the
port ID the frames arrived on.
Through this knowledge, it is able to keep traffic submitted to your
local printer from crossing the bridge. Yet it allows frames
belonging to sessions with remote machines to pass over the ADSL
line.
Entries are aged, i.e. removed from the filtering database, after a
certain time has elapsed (Aging time).
The learning and aging process make the bridge Plug & Play. Both
keep the filtering database upĆtoĆdate with the current network
configuration.
Example
: Suppose a PCĆNIC is replaced, the old MAC address is
aged (and will be consequently discarded), while a new MAC
address will be learned.
If an Ethernet frame arrives, the destination MAC address is
searched for in the filtering database. If the destination MAC
address is not found (implying it is not yet learned), it is forwarded
to all ports in the forwarding state, except the one the frame
arrived on.
Note
: Broadcast and multicast MAC addresses are always
flooded.
Содержание Speed Touch Wireless
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Страница 8: ...Contents 3EC 17766 AAAA TCZZA Ed 01 8 362...
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Страница 26: ...1 Speed Touch Wireless Quick Guide 26 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 27: ...27 362 3EC 17766 AAAA TCZZA Ed 01 Speed Touch Wireless Wiring Guide...
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Страница 34: ...2 Wiring Guide ADSL Power and Console 34 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 45: ...45 362 3EC 17766 AAAA TCZZA Ed 01 Speed Touch Wireless Data Services...
Страница 46: ...46 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 58: ...4 Data Services Packet Services 58 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 88: ...6 Data Services MAC Encapsulated Routing 88 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 122: ...7 Data Services PPPoA to PPTP Relaying 122 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 148: ...8 Data Services PPP IP Routing 148 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 175: ...175 362 3EC 17766 AAAA TCZZA Ed 01 Speed Touch Wireless Networking Services...
Страница 176: ...176 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 192: ...10 Networking Services ATM 192 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 231: ...12 Networking Services DNS 231 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 247: ...247 362 3EC 17766 AAAA TCZZA Ed 01 Speed Touch Wireless Wireless LAN Services...
Страница 248: ...248 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 253: ...253 362 3EC 17766 AAAA TCZZA Ed 01 Speed Touch Wireless Maintenance...
Страница 254: ...254 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 262: ...15 Maintenance Software Upgrade 262 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 266: ...16 Maintenance Speed Touch Wireless Security 266 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 284: ...18 Maintenance Speed Touch Wireless Web Interface 284 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 297: ...297 362 3EC 17766 AAAA TCZZA Ed 01 Speed Touch Wireless Appendices...
Страница 298: ...298 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 337: ...AppendixE STWireless Original Settings 337 362 3EC 17766 AAAA TCZZA Ed 01 E 2 Wireless LAN Settings STW_Alcatel 6...
Страница 352: ...AppendixF Hardware Reference 352 362 3EC 17766 AAAA TCZZA Ed 01...
Страница 362: ...AppendixH Safety and Agency Regulatory Notices 362 362 3EC 17766 AAAA TCZZA Ed 01...