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Method and system for determining connectivity status for unnumbered interfaces of a target network device

A network interface, technology for target devices, in the field of software applications

Active Publication Date: 2013-07-10
JUMIPER NETWORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this approach avoids the operational expense and security risks associated with per-interface IP address assignment, network administrators cannot use conventional connectivity testing applications (such as ping and traceroute) to interface-by-interface ( interface-by-interface) for connectivity testing

Method used

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  • Method and system for determining connectivity status for unnumbered interfaces of a target network device
  • Method and system for determining connectivity status for unnumbered interfaces of a target network device
  • Method and system for determining connectivity status for unnumbered interfaces of a target network device

Examples

Experimental program
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Embodiment Construction

[0027] Administrator 16 accesses the source device (eg, server 12A) and invokes a diagnostic software application to initiate a connectivity test on the target device (eg, server 12B). During this process, the administrator may designate a specific source interface 15A of server 12A, a specific interface 15B of server 12B, or both, between which the connectivity test is to be performed. In this example, the Internet Control Message Protocol (ICMP) has been extended to support testing connectivity of unnumbered interface 15, and the ICMP packets between servers 12A and 12B include an additional field containing the specified interface. For example, administrator 16 may request server 12A to "ping" server 12B by sending a ping request packet along a particular path of router 18A and router 18D. In order to make this request, the administrator 16 specifies to send a ping request packet from the interface 15A-1 of the server 12A to the interface 15B-1 of the server 12B.

[0028]N...

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Abstract

Techniques are described for testing connectivity to unnumbered interfaces of a target device. For example, a software utility and protocol are described that allows an administrator to specify a logical offset that may be internally resolved by the target device to one of a plurality of unnumbered interfaces during the test. Similarly, the administrator may specify an offset that may be internally resolved by the source device to one of a plurality of unnumbered interfaces from which the connectivity test is to originate. The source device may send enhanced request packets and receive enhanced reply packets specifying the source unnumbered interface and the destination unnumbered interface between which connectivity is to be tested. In this manner, an administrator may test for connectivity of particular interfaces even where internet protocol (IP) addresses or other identifiers for the interfaces are not externally known.

Description

technical field [0001] The present invention relates to computer networks, and more particularly, to software applications for determining the status of computer network connections. Background technique [0002] Conventional software applications, such as the commonly used ping and traceroute utilities, are effective tools for identifying incommunicability between two nodes of a network. These tools typically require a user to enter a unique identifier (eg, a specific Internet Protocol (IP) address) of a remote host in order to test connectivity with the remote host. For example, a ping protocol tests connectivity with a remote host by sending an Internet Control Message Protocol (ICMP) echo request packet to a specific IP address to test the connectivity status with a specific target device having that IP address. If no reply reply packet is received within a defined period of time, then the communication with the device is considered to be faulty. [0003] Similarly, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26
CPCH04L43/50H04L12/2697
Inventor 基里蒂·康佩拉
Owner JUMIPER NETWORKS INC
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