Cisco Technology, Inc.

Susan Marie Sauter

Norman William Finn

Keith McCloghrie

Ian Foo

Ho Bao

Jason Frazier

Ahsan Habib

Stefano Testa

Hei Tao Fung

Daniel Scott Keller

Pere Joan Monclus Argany

Chunfeng Huang

Kiran K Toutireddy

Atul Trasi

Gregory Alan Moore

Troy H Sherman

Cynthia D Melter

In certain embodiments, a system comprises a connection to a network and an application server providing a cross cluster extension mobility (CCEM) service configured to receive a request from a user to log into the CCEM service from a telephony device connected to the network, prompt the user via the telephony device to provide a user ID, determine whether the user is logging in from a home cluster or a remote cluster, and perform a local extension mobility login for the user.

Cross cluster extension mobility in internet-protocol telephony

According to one embodiment, a method for removing authentication of a supplicant includes monitoring communication between the supplicant and an authenticator. The method also includes determining, based on the monitored communication, the MAC address for the supplicant and an attachment port of the supplicant to the intermediate network device disposed between the supplicant and the authenticator through which the monitored communication occurs. The method also includes determining that the supplicant no longer has a link connection with the intermediate network device, and in response, sending via the intermediate network device a logoff message having a spoofed source address of the supplicant to the authenticator.

Method and system for removing authentication of a supplicant

A system and method for implementing telephony devices in a distributed network environment is disclosed. The present invention provides for voice transmissions to be given a dedicated virtual local area network ('VLAN') for packet transmission and reception to prevent poor quality of service. Non-voice data packets are transmitted on a separate VLAN.

Method for bring-up of voice over internet protocol telephones

A method to support cross cluster extension mobility (CCEM) in a communication network, which includes a plurality of clusters, each of the plurality of clusters including a call manager, the method includes receiving a request for cross cluster extension mobility from a user on a first telephony device located in a first cluster; adding a second telephony device in a home cluster for the user, only if the first cluster is different from the home cluster. The method further includes performing extension mobility login for the user on the first telephony device; and configuring a Trivial File Transfer Protocol (TFTP) service parameter of the call manager in the first cluster.

Method and system for supporting cross cluster extension mobility in internet-protocol telephony

Disclosed are apparatus and methods for authenticating a device to access a network through an access control port. In one embodiment, one or more first authentication packets for authenticating a first device or user to access a first network domain via a particular access port of a network device are received, for example, by an access control port. The particular access port is configured to control access for packets attempting to ingress into one or more network domains. When the first device or user is authorized to access the first domain, a first binding between the first device and the first domain is formed. The first binding specifies that the first device is allowed to access the first domain and the first binding is associated with the particular access port of the network device. When a packet is received that is attempting to ingress into the first domain and the ingressing packet matches the first binding, the ingressing packet is allowed to access the first domain. In contrast, when a packet is received that is attempting to ingress into the first domain and the ingressing packet does not match the first binding, the ingressing packet is blocked from accessing the first domain.

Apparatus and methods for supporting 802.1X in daisy chained devices

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Murphy, TX, United States of America

Susan Marie Sauter