Communications access network routing

Details Communications access network routing Communications access network routing

H - Electricity

04

L

H04L 12/56 (2006.01) H04Q 3/58 (2006.01) H04Q 3/60 (2006.01)

Patent

CA 2115096

A communications switch (311) communicates a message to a particular access network endpoint (OE i) by forwarding an identification of that endpoint along with the message, link-by-link, through the access network, the forwardingbeing accomplished by using previously stored routing information identifying, at the switch and at each cross-connection point (350, 370), a particular downstream link over which the endpoint can ultimately be reached. The links (345, 365) connecting the cross-connection points are time-division-multiplexed links supporting digital loop carrier and fiber-in-the-loop communications. The routing information is generated and stored automatically by having each network elementreport information about itself upstream into the network.

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