DATA ROUTING

摘要

Measures for use in routing data in a data communications network. A request to route data to a given destination in the network is received. A route to the given destination is first selected from a plurality of routes to the given destination stored in a routing table. Routing the data to the given destination using the first selected route is attempted. In response to receipt of an indication that routing the data to the given destination via the first route failed, a second, different route to the given destination is second selected from the plurality of routes to the given destination stored in the routing table. The second selecting includes omitting, for the purposes of the second selection, at least one route to the given destination from the plurality of routes to the given destination stored in the routing table.

主权项

1. A method of routing data in a data communications network, the method comprising:
receiving a request to route data to a given destination in the network; first selecting a first route to the given destination from a plurality of routes to the given destination stored in a routing table; attempting to route the data to the given destination using the first selected route; in response to receipt of an indication that routing the data to the given destination via the first route failed, second selecting a second, different route to the given destination from the plurality of routes to the given destination stored in the routing table, wherein the second selecting comprises omitting, for the purposes of the second selection, at least one route to the given destination from the plurality of routes to the given destination stored in the routing table, the omitting being carried out at least in part on the basis of the at least one route having at least one characteristic in common with the first route; and attempting to route the data to the given destination using the second selected route.