Enterprise physical layer switch
First Claim
Patent Images
1. A physical layer switch, comprising:
- a switch cross bar for changeably interconnecting selected ports within a physical layer switch such that an optical signal can be changeably routed between selected ports;
a first port in communication with the switch cross bar; and
a second port in communication with the first port, wherein a signal entering the physical layer switch at the first port is routed to the switch cross bar and a mirror copy of the signal entering the physical layer switch at the first port is routed to the second port such that it does not reach the switch cross bar.
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Abstract
A physical layer switch is provided that includes a switch cross bar for changeably interconnecting selected ports within a physical layer switch such that an optical signal can be changeably routed between selected ports, a first port in communication with the switch cross bar, and a second port in communication with the first port, wherein a signal entering the physical layer switch at the first port is routed to the switch cross bar and a mirror copy of the signal entering the physical layer switch at the first port is routed to the second port such that it does not reach the switch cross bar.
56 Citations
20 Claims
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1. A physical layer switch, comprising:
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a switch cross bar for changeably interconnecting selected ports within a physical layer switch such that an optical signal can be changeably routed between selected ports;
a first port in communication with the switch cross bar; and
a second port in communication with the first port, wherein a signal entering the physical layer switch at the first port is routed to the switch cross bar and a mirror copy of the signal entering the physical layer switch at the first port is routed to the second port such that it does not reach the switch cross bar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A physical layer switch, comprising:
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at least one traffic access port configured to be located in at least one network link, said traffic access port including first and second network ports and at least one monitor port; and
a switch;
cross bar coupled to said monitor port wherein a signal entering the physical layer switch at the first network port is routed to the switch cross bar and a mirror copy of the signal entering the physical layer switch at the first network port is routed to the second network port such that it does not reach the switch cross bar. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A network monitoring system, comprising:
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a physical layer switch including at least one traffic access port configured to be located in at least one network link, said traffic access port including first and second network ports and at least one monitor port, and a switch cross bar coupled to said monitor port wherein a signal entering the physical layer switch at the first network port is routed to the switch cross bar and a mirror copy of the signal entering the physical layer switch at the first network port is routed to the second network port such that it does not reach the switch cross bar;
at least one port coupled to said switch cross bar; and
at least one of a monitoring device and an analyzer selectively coupled to said port. - View Dependent Claims (19, 20)
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Specification