Referring to the exhibit, what effect does EVPN core isolation have?
Referring to the exhibit, what effect does EVPN core isolation have?
Core isolation in an EVPN network is designed to protect the network if an EVPN node (e.g. a leaf or spine) loses all its BGP EVPN peerings. If this occurs, the node will bring down all its Layer 2 Ethernet Segment Identifier (ESI) link aggregation group (LAG) interfaces to prevent loops and blackholing of traffic. Therefore, the correct answer is that Leaf 1 will take down all revenue interfaces. Other options, such as sending a pause frame, blocking all traffic on Spine 1, or placing interfaces into LACP passive mode, do not accurately describe the behavior resulting from core isolation.
D. By default, spine and leaf devices in an EVPN network implement the core isolation feature. If one of these devices loses all of its EVPN BGP peering sessions, the core isolation feature, working in conjunction with Link Aggregation Control Protocol (LACP), automatically brings down all Layer 2 Ethernet Segment Identifier (ESI) link aggregation group (LAG) interfaces on the device.
It is C: -> the core isolation feature, working in conjunction with Link Aggregation Control Protocol (LACP), automatically brings down all Layer 2 Ethernet Segment Identifier (ESI) link aggregation group (LAG) interfaces on the device. A is wrong, a pause frame is send when congestion occurs - in our case the ports need to be shut down.
SORRY -> It must be D !!! D is the correct answere
D is correct I think. It looks like the answers are not well formulated. Answer "C" says it puts interfaces in passive mode, and this is not true. Juniper documentation says it puts interfaces in stand-by mode.
C would be the correct answer
u are so junior
th the core isolation feature enabled by default, LACP sets the server-facing interface on Leaf 1 to standby mode, which blocks all traffic from the server. In this situation, the default implementation of the core isolation feature provides the following benefits: https://www.juniper.net/documentation/us/en/software/junos/evpn-vxlan/topics/concept/evpn-vxlan-core-isolation-disabling.html