![]() ![]() To verify current timers negotiated to a neighbor, issue the “show ip bgp neighbor” command, example below. As you might imagine, failing to receive three keepalives in a row will make the hold-down timer reach 180 seconds what will mean the neighbor is considered down and routes from this neighbor are flushed. ![]() Every keepalive message it reachieved from the neighbor peer resets this timer back to 0 seconds. Once the peering between two peers is UP, router starts a hold-down timer counting from 0 second up. By default, keepalive timer is 60 seconds and hold-down timer is 3xkeepalive or 180seconds. BGP “Minimum Hold-Down from Neighbor” optionįirst basic BGP times are Keepalive and Hold-down timer intervals. ![]()
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