Advertising reachability in proxy FHRP for anycast routing service
First Claim
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1. A method comprising:
- receiving one or more Hot Standby Router Protocol (HSRP) packets;
terminating the HSRP packets;
consuming the HSRP packets;
electing a primary HSRP proxy from the plurality of cloud network junction devices;
exchanging received HSRP information with one or more other network devices;
periodically deciding whether to advertise reachability to an emulated switch;
discontinuing the advertisement after detecting a mismatch; and
directing traffic from a first network device through the primary HSRP proxy to the emulated switch.
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Abstract
Embodiments herein achieve proxy FHRP for anycast routing services through the coordination of L2MP edge switches to allow load balancing for the use of routing services. Such embodiments may avoid duplicity and coordinate control planes between the edge switches to present a proxy interface to the rest of the network for the routing services. As such, multipathing and load-balancing for efficient use of crucial services may be provided for client nodes inside the network.
33 Citations
20 Claims
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1. A method comprising:
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receiving one or more Hot Standby Router Protocol (HSRP) packets; terminating the HSRP packets;
consuming the HSRP packets;electing a primary HSRP proxy from the plurality of cloud network junction devices; exchanging received HSRP information with one or more other network devices; periodically deciding whether to advertise reachability to an emulated switch; discontinuing the advertisement after detecting a mismatch; and directing traffic from a first network device through the primary HSRP proxy to the emulated switch. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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receiving one or more Hot Standby Router Protocol (HSRP) packets; terminating the HSRP packets; consuming the HSRP packets; exchanging received HSRP information with one or more other network devices; periodically deciding whether to advertise reachability to an emulated switch; and after detecting a mismatch, discontinuing the advertisement. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A network device comprising:
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a processor programmed to; receive a unicast packet flood; determine an outer designated address; reference a Media Access Control (MAC) match table with an inner designated address to direct packets;
program an Access Control List (ACL) to drop received packets with the inner designated address and an outer designated address; and
respond with identification information for an emulated switch. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification