Valid 350-501 Dumps shared by ExamDiscuss.com for Helping Passing 350-501 Exam! ExamDiscuss.com now offer the newest 350-501 exam dumps, the ExamDiscuss.com 350-501 exam questions have been updated and answers have been corrected get the newest ExamDiscuss.com 350-501 dumps with Test Engine here:
While implementing TTL security, an engineer issues the PE(config-router-af)#neighbor 2.2.2.2 ttl-security hops 2 command. After issuing this command, which BGP packets does the PE accept?
Correct Answer: C
The ttl-security hops <number> command sets the maximum number of hops that a BGP message can traverse. In this case, setting ttl-security hops 2 means that the router will accept BGP packets from a neighbor (2.2.2.2) only if the TTL is 253 or more. This is because the default TTL value is 255, and for each hop, the TTL is decremented by 1. Therefore, a packet from a directly connected neighbor would have a TTL of 254 when it reaches the PE router. If the packet has traversed one more router (making it two hops away), the TTL would be 253 upon arrival. This information is based on the TTL security mechanism described in the Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) training materials,