ACTIVE HOST AND BACKUP HOST IN A HOST ARRANGEMENT FOR COMMUNICATING WITH A TERMINAL CONNECTED TO AN IP NETWORK
First Claim
1. A method performed by a host arrangement for communicating with a terminal connected to an Internet Protocol (IP) communication network, the host arrangement comprising at least two hosts, whereof one is operating as active host and the remaining at least one host(s) is operating as backup host(s), the host arrangement being connected to the IP communication network by means of a switch, wherein each host of the host arrangement is connected to the switch by means of an individual link, the active host being associated with an IP address and a Media Access Control (MAC) address, the method comprising:
- detecting a link failure between the active host and the switch, or a malfunction of the active host;
determining a backup host to take over from the active host;
associating the IP address and the MAC address of the active host to the determined backup host to take over from the active host; and
triggering a MAC learning process in the switch,thus avoiding having to update routers in the IP communication network due to the change of hosts.
1 Assignment
0 Petitions
Accused Products
Abstract
A method in a host arrangement for communicating with a terminal connected to an IP communication network. The arrangement comprises at least two hosts, one operating as active host and the remaining at least one host operating as backup host(s). The arrangement is connected to the IP communication network by means of a switch, wherein each host of the arrangement is connected to the switch by means of an individual link, the active host being associated with an IP and a MAC address. The method comprises detecting a link failure between the active host and the switch, or a malfunction of the active host, and determining a backup host to take over. The method comprises associating the IP and the MAC address of the active host to the determined backup host to take over, and triggering a MAC learning process in the switch.
9 Citations
44 Claims
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1. A method performed by a host arrangement for communicating with a terminal connected to an Internet Protocol (IP) communication network, the host arrangement comprising at least two hosts, whereof one is operating as active host and the remaining at least one host(s) is operating as backup host(s), the host arrangement being connected to the IP communication network by means of a switch, wherein each host of the host arrangement is connected to the switch by means of an individual link, the active host being associated with an IP address and a Media Access Control (MAC) address, the method comprising:
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detecting a link failure between the active host and the switch, or a malfunction of the active host; determining a backup host to take over from the active host; associating the IP address and the MAC address of the active host to the determined backup host to take over from the active host; and triggering a MAC learning process in the switch, thus avoiding having to update routers in the IP communication network due to the change of hosts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 43)
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10. A method performed by a first host, operable to be associated with a second host, the hosts being adapted for communicating with a terminal connected to an Internet Protocol (IP) communication network, the first and the second host being connectable to the IP communication network by means of a switch, wherein each host is connectable to the switch by means of an individual link, wherein one of the hosts is operating as active host and the other host is operating as backup host, the method comprising:
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detecting a link failure between the active host and the switch, or a malfunction of the active host; determining a backup host to take over from the active host; and associating the IP address and the MAC address of the active host to the determined backup host to take over. - View Dependent Claims (11, 12, 13, 14, 15, 44)
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16. A host arrangement adapted for communicating with a terminal connected to an Internet Protocol (IP) communication network, the host arrangement comprising at least two hosts, whereof one is operating as active host and the remaining at least one host is operating as backup host(s), the host arrangement being connected to the IP communication network by means of a switch, wherein each host of the host arrangement is connected to the switch by means of an individual link, the active host being associated with an IP address and a Media Access Control (MAC) address, the host arrangement comprising:
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a detecting unit adapted to detect a link failure between the active host (310) and the switch, or a malfunction of the active host; a determining unit adapted to determine a backup host to take over from the active host; an associating unit adapted to associate the IP address and the MAC address of the active host to the determined backup host to take over; and a triggering unit adapted to trigger a MAC learning process in the switch. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. (canceled)
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26. A first host operable to be associated with a second host, the hosts being adapted for communicating with a terminal connected to an Internet Protocol, IP, communication network, the first and the second host being connectable to the IP communication network by means of a switch, wherein each host is connectable to the switch by means of an individual link, wherein one of the hosts is operating as active host and the other host is operating as backup host, the first host comprising:
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a detecting unit adapted to detect a link failure between the active host and the switch, or a malfunction of the active host; a determining unit adapted to determine a backup host to take over from the active host; and an associating unit adapted to associate the IP address and the MAC address of the active host to the determined backup host to take over. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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- 35. The first host according to claim 35, wherein the first host comprises a status unit adapted to send status messages to the backup host.
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39-42. -42. (canceled)
Specification