IP Library › Granted Patent US 8,917,591
Granted Patent B2
US 8,917,591 · App. 13/185,800 · Granted Dec 23, 2014

Systems and methods for protection of adaptation layer in a communication network

Inventors: Muhammad Sakhi Sarwar (Brookfield, CT); Zigmunds Andis Putnins (Ridgewood, NJ); Jaya Sarup (New City, NY); Zanjun Lu (Edison, NJ); Nitin Gogate (Montvale, NJ); Michael Charles Green (Central Valley, NY)
Assignee: Fujitsu Limited
H04L41/0663H04J2203/006H04J2203/0085
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Quick Facts
Patent No.
US 8,917,591
App. No.
13/185,800
Granted
Dec 23, 2014
Kind
B2
Abstract

A method may include: (i) provisioning a first network-side interface of a first plug-in unit and a second network-side interface of a second plug-in unit as members of a network-side protection group, the first plug-in unit and the second plug-in unit integral to an adaptation layer network element; (ii) provisioning a first client-side interface of the first plug-in unit and a second client-side interface of the second plug-in unit as members of a client-side protection group; (iii) designating one of the first and second network-side interface as an active network-side interface of the network-side protection group; and (iv) designating one of the first second client-side interface as an active client-side interface of the client-side protection group, such that traffic ingressing on the active network-side interface may egress on the active client-side interface and traffic ingressing on the active client-side interface may egress on the active network-side interface.

Claims (74)

1. A network element comprising:

a first plug-in unit comprising:

a first client-side interface; and

a first network-side interface communicatively coupled to the first client-side interface;

a second plug-in unit communicatively coupled to the first plug-in unit via a mate link, the second plug-in unit comprising:

a second client-side interface; and

a second network-side interface communicatively coupled to the first client-side interface; and

a management module configured to:

provision the first network-side interface and the second network-side interface as members of a network-side protection group;

provision the first client-side interface and the second client-side interface as members of a client-side protection group;

designate one of the first network-side interface and the second network-side interface as an active network-side interface of the network-side protection group;

designate as a standby network-side interface of the network-side protection group the network-side interface not designated as the active network-side interface;

designate one of the first client-side interface and the second client-side interface as an active client-side interface of the client-side protection group; and

designate as a standby client-side interface of the client-side protection group the client-side interface not designated as the active client-side interface;

such that traffic ingressing on the active network-side interface egresses on the active client-side interface and traffic ingressing on the active client-side interface egresses on the active network-side interface.

2. A network element according to claim 1 , the client-side protection group comprising a link aggregation group.

3. A network element according to claim 1 , the client-side protection group configured to interface with an Ethernet network.

4. A network element according to claim 1 , the network-side protection group configured to interface with a synchronous optical network.

5. A network element according to claim 4 ,

the active network-side interface further configured to:

receive traffic broadcasted from the synchronous optical network to each of the active network-side interface and the standby network-side interface; and

forward the traffic to the active client-side interface; and

the standby network-side interface further configured to:

receive traffic broadcasted from the synchronous optical network to each of the active network-side interface and the standby network-side interface; and

drop the traffic.

6. A network element according to claim 1 , the management module further configured to, in response to an event preventing communication of traffic via the active client-side interface, re-designate the standby client-side interface as the active client-side interface.

7. A network element according to claim 1 , the management module further configured to, in response to an event preventing communication of traffic via the active network-side interface, re-designate the standby network-side interface as the active network-side interface.

8. A communication network comprising:

a first network element providing a first client network interface; and

a second network element providing a second client network interface configured to communicatively couple to the first network element via a synchronous optical network such that client traffic may be communicated between the first client network interface and the second client network interface, the second network element comprising;

a first plug-in unit comprising:

a first client-side interface; and

a first network-side interface communicatively coupled to the first client-side interface;

a second plug-in unit communicatively coupled to the first plug-in unit via a mate link, the second plug-in unit comprising:

a second client-side interface; and

a second network-side interface communicatively coupled to the first client-side interface; and

a management module configured to:

provision the first network-side interface and the second network-side interface as members of a network-side protection group;

provision the first client-side interface and the second client-side interface as members of a client-side protection group;

designate one of the first network-side interface and the second network-side interface as an active network-side interface of the network-side protection group;

designate as a standby network-side interface of the network-side protection group the network-side interface not designated as the active network-side interface;

designate one of the first client-side interface and the second client-side interface as an active client-side interface of the client-side protection group; and

designate as a standby client-side interface of the client-side protection group the client-side interface not designated as the active client-side interface;

such that traffic ingressing on the active network-side interface egresses on the active client-side interface and traffic ingressing on the active client-side interface egresses on the active network-side interface.

9. A communication network according to claim 8 , the client-side protection group comprising a link aggregation group.

10. A communication network according to claim 8 , first client network interface and the second client network interface each configured to interface to an Ethernet network.

11. A communication network according to claim 8 , the network-side protection group configured to interface with the synchronous optical network.

12. A communication network according to claim 11 ,

the active network-side interface further configured to:

receive traffic broadcasted from the synchronous optical network to each of the active network-side interface and the standby network-side interface; and

forward the traffic to the active client-side interface; and

the standby network-side interface further configured to:

receive traffic broadcasted from the synchronous optical network to each of the active network-side interface and the standby network-side interface; and

drop the traffic.

13. A communication network according to claim 8 , the management module further configured to, in response to an event preventing communication of traffic via the active client-side interface, re-designate the standby client-side interface as the active client-side interface.

14. A communication network according to claim 8 , the management module further configured to, in response to an event preventing communication of traffic via the active network-side interface, re-designate the standby network-side interface as the active network-side interface.

15. A method comprising:

provisioning a first network-side interface integral to a first plug-in unit and a second network-side interface integral to a second plug-in unit as members of a network-side protection group, the first plug-in unit and the second plug-in unit integral to a network element;

provisioning a first client-side interface integral to the first plug-in unit and a second client-side interface integral to the second plug-in unit as members of a client-side protection group;

designating one of the first network-side interface and the second network-side interface as an active network-side interface of the network-side protection group;

designating as a standby network-side interface of the network-side protection group the network-side interface not designated as the active network-side interface;

designating one of the first client-side interface and the second client-side interface as an active client-side interface of the client-side protection group; and

designating as a standby client-side interface of the client-side protection group the client-side interface not designated as the active client-side interface;

such that traffic ingressing on the active network-side interface egresses on the active client-side interface and traffic ingressing on the active client-side interface egresses on the active network-side interface.

16. A method according to claim 15 , the client-side protection group comprising a link aggregation group.

17. A method according to claim 15 , further comprising configuring the client-side protection group to interface with an Ethernet network.

18. A method according to claim 15 , further comprising configurating the network-side protection group to interface with a synchronous optical network.

19. A method according to claim 18 , further comprising:

receiving traffic at the active network-side interface broadcasted from the synchronous optical network to each of the active network-side interface and the standby network-side interface; and

forwarding the traffic from the active network side interface to the active client-side interface;

receiving traffic at the standby network-side interface broadcasted from the synchronous optical network to each of the active network-side interface and the standby network-side interface; and

dropping the traffic received at the standby network-side interface.

20. A method according to claim 15 , further comprising re-designating the standby client-side interface as the active client-side interface in response to an event preventing communication of traffic via the active client-side interface.

21. A method according to claim 15 , further comprising re-designating the standby network-side interface as the active network-side interface in response to an event preventing communication of traffic via the active network-side interface.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 14, 2011
From: FUJITSU NETWORK COMMUNICATIONS, INC.
To: FUJITSU LIMITED
Reel/Frame 027385/0411 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 19, 2011
From: SARWAR, MUHAMMAD SAKHI; PUTNINS, ZIGMUNDS ANDIS; SARUP, JAYA; LU, ZANJUN; GOGATE, NITIN; GREEN, MICHAEL CHARLES
To: FUJITSU NETWORK COMMUNICATIONS, INC.
Reel/Frame 026613/0822 →
Continuity (1)
Related Publication 20130022349A1 · Jan 24, 2013