Method of modifying virtual path capacity
First Claim
1. A method of modifying a virtual path capacity in a communication network which transfers a first cell in an asynchronous transfer mode between node apparatuses, said first cell having a first virtual path identifier indicative of a virtual path which said first cell passes through, comprising the step of:
- modifying a bandwidth allocated to the virtual path;
wherein said step of modifying includes the step of notifying the modification of the bandwidth to a node apparatus included in said virtual path by passing a second cell through said virtual path, said second cell having information of the modification and a second virtual path identifier same as said first virtual path identifier.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of modifying a virtual path capacity in a communication network which transfers a first cell in an asynchronous transfer mode between node apparatuses. The first cell has a first virtual path identifier indicative of a virtual path which the first cell passes through. A bandwidth allocated to the virtual path is modified. Notification of the modification of the bandwidth is provided to a node apparatus included in the virtual path by passing a second cell through said virtual path. The second cell has information of the modification and a second virtual path identifier same as the first virtual path identifier. The second cell is received by the node apparatus and a third cell having information of confirmation of reception of the second cell is returned by the node apparatus.
28 Citations
9 Claims
-
1. A method of modifying a virtual path capacity in a communication network which transfers a first cell in an asynchronous transfer mode between node apparatuses, said first cell having a first virtual path identifier indicative of a virtual path which said first cell passes through, comprising the step of:
-
modifying a bandwidth allocated to the virtual path; wherein said step of modifying includes the step of notifying the modification of the bandwidth to a node apparatus included in said virtual path by passing a second cell through said virtual path, said second cell having information of the modification and a second virtual path identifier same as said first virtual path identifier. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of modifying a virtual path capacities in a communication network which transfers a first cell and a second cell in an asynchronous transfer mode between node apparatuses, said first cell having a first virtual path identifier indicative of a first virtual path which said first cell passes through, said second cell having a second virtual path identifier indicative of a second virtual path which said second cell passes through, said first and second virtual paths being set in the same route, comprising the step of:
-
modifying first and second bandwidths respectively allocated to said first and second virtual paths; wherein said step of modifying includes the step of notifying modification of the bandwidths to a node apparatus included in said route by passing a third cell through said first virtual path.
-
-
9. A method of modifying a virtual path capacity in a communication network which transfers a first cell in an asynchronous transfer mode between node apparatuses, said first cell having a first virtual path identifier indicative of a virtual path which said first cell passes through, comprising the steps of:
-
modifying the bandwidth allocated to said virtual path, wherein said step of modifying includes the step of notifying modification of the and width to a plurality of node apparatuses included in said virtual path by passing a second cell through said virtual path, said second cell having information of the modification and a second virtual path identifier same as said first virtual path identifier; receiving said second cell by said second node apparatus; and returning from each node apparatus a third cell having information of confirmation of reception of said second cell by said node apparatus; wherein said third cell has a third virtual path identifier indicative of a virtual path which said third cell passes through, said second cell further has information indicative of said third virtual path identifier, one of said plurality of node apparatuses which has received said second cell designates said third virtual path identifier when said third cell is transferred from said one of said plurality of node apparatuses to another of said plurality of node apparatuses.
-
Specification