Flashcards in IP Routing Essentials Deck (21)
What is an AS Autonomous system also know as a routing domain?
network of interconnected routers and related systems managed under a common network
What is it called when BPG exchanges routes within an autonomous system?
Interior BGP (iBGP) session
What is it called when BPG exchanges routes between different autonomous system?
exterior BGP (eBGP) session
In distance vector routing protocol what is the vector?
Interface or direction to reach the network
In distance vector routing protocol what is the distance?
route metric to reach the network
Do distance vector routing protocols have a complete map of the whole network? yes or no
By default what does EIGRP advertise?
total path delay and minimum bandwidth for a route
What are OSPF advertisements called?
LSA Link State Advertisments
What does IS-IS use for advertisements?
LSP Link State Packets
In OSPF when a router receives an advertisement from a neighbor it stores the information where?
local database called Link State Database
What type of protocol is BGP?
Path Vector with BGP Path attributes
What is an example of longest prefix?
ex. /24 vs /28 - 28 is the longest prefix
If a routing protocol identifies multiple paths as the best path and supports multiple path entries, what does the router do?
What is this know as?
Installs the maximum number of paths allowed per destination
equal cost multi-path (ECMP) - also equal cost load balancing
What does ECMP provide?
Increase bandwidth across multiple paths by spitting the traffic equally across links
What are three types of static routes?
What is a directly attached static route?
route that uses only the outbound next hop interface (uses interface not IP address)
What is a recursive static route?
specifies the IP address of the next-hop address (uses IP address not the interface)
What is a fully specified static route?
uses both an interface and next-hop IP address
What is a floating static route?
What is also configured on a floating static route?
it's used a backup route for connectivity
higher AD Administrative Distance
What is a Null static route?
Virtual interface that is always in a up state, that drop traffic and do not forward or receive network traffic