STATIC ROUTE ADVERTISEMENT
FIG3 is a flowchart illustrating an example mode of operation for a provider edge network device to advertise or suppress a static route for an EVPN instance, according to techniques described herein
FIG3 is a flowchart illustrating an example mode of operation for a provider edge network device to advertise or suppress a static route for an EVPN instance, according to techniques described herein. PE 10A receives configuration data configuring the PE 10A to multi-home CE 8 for an EVI (101). An EVI for VRF 22A may have multiple associated IRBs, including IRB 19A. PE 10A determines that IRB 19A of the one or more IRBs for the EVI for VRF 22A has a gateway L3 (e.g., IP) address (or routing interface L3 address) that shares a bridge domain L3 subnet with the gateway IP address for IRB 9 of CE 8 (102). Put another way, PE 10A finds the IRB of the one or more IRBs (here, IRB 19A) with a logical interface gateway IP address that shares an L3 subnet with the gateway IP address for IRB 9 of CE 8. This indicates that IRB 19A is the outbound logical interface of PE 10A for IRB 9 of CE 8.
flowchart
110
remote PE 10C
105
domain in some instances
101
EVI
21
customer edge device.Example
3
layer
['1. A method comprising: receiving, by a provider edge router of an intermediate layer 3 network, configuration data configuring the provider edge router to provide multi-homed layer 2 virtual bridge connectivity to a customer edge device using an active-standby mode of operation; and sending, by the provider edge router to a remote provider edge router, in response to receiving, from the customer edge device, a reply to a request for a layer 2 address of a layer 3 address of the customer edge device, a route advertisement that includes a static route specifying a layer 3 address of the customer edge device as a next-hop for a layer 3 subnet.']