Invention Grant
- Patent Title: Active IP forwarding in an event driven virtual link aggregation (vLAG) system
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Application No.: US14832877Application Date: 2015-08-21
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Publication No.: US09716616B2Publication Date: 2017-07-25
- Inventor: Yuan Wx Li , Tamanna Z. Sait , Naveen C. Sekhara , Venkatesan Selvaraj
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Zilka-Kotab, P.C.
- Main IPC: H04L12/28
- IPC: H04L12/28 ; H04L12/24 ; H04L12/931 ; H04L12/939 ; H04L12/935

Abstract:
In one embodiment, a networking switch includes an interswitch link (ISL) interface configured to communicate with a second networking switch via an ISL and a networking port configured to connect to an access switch in Layer-2 (L2) via a virtual link aggregation (vLAG) with the second networking switch. The networking switch includes a virtual router redundancy protocol (VRRP) module configured to perform active interact protocol (IP) forwarding. Moreover, the VRRP module is configured to indicate a status of the networking switch to the second networking switch via the ISL. The status is one of: initialization when the networking switch is not currently active (INIT), back-up status when the networking switch is acting as a back-up switch (BACK-UP), or master status when the networking switch is acting as a master switch (MASTER). In addition, the networking switch is positioned at a boundary between L2 and Layer-3 (L3).
Public/Granted literature
- US20150365270A1 ACTIVE IP FORWARDING IN AN EVENT DRIVEN VIRTUAL LINK AGGREGATION (VLAG) SYSTEM Public/Granted day:2015-12-17
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