思科路由笔记.doc

思科路由+++笔记
One: rip routing protocol features
The rip is called the routing information protocol, which is a distance v: no IP domain - lookup
Close timeout exit: line console 0
No exec - a timeout
Open the cursor to follow: logging synchronous
Delete the routing entry: clear IP route *
Ospf routing protocol
One: the classification of routing protocols
static routing: manually specified and added routing entries. Advantage: the configuration is simple, the occupancy resource is small: Disadvantages: not suitable for large network, can not adapt to network change.
How to configure | : (config) # IP route target network mask local export/next hop IP address
Routing protocol | (config) # IP route
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dynamic routing: running on the router, only with the start, the router can learn automatically and form a routing table.
rip, ospf, eigrp, is-is (intermediate system to the center system), BGP (border gateway protocol, suitable for giant networks)
Two: ospf: open shortest path first (open shortest path first), which is a link state routing protocol that selects the best path with bandwidth and manages the distance 110
Ospf routing protocol features:
It' s for big networks
Speed of convergence (10S)
3. Support VLSM
Support for regional partitioning
Support summary (inter-domain aggregation and external summarization)
6. Support the validation
Group broadcast update (group broadcast update address
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Support for equivalent load balancing
Three: what is the link state?
Link-state routers are connected to what network and routing, as well as to the network and the router takes overhead, this is what we call the link-state information or link-state notices. Generally referred to as: the Isa.
Inside an ospf network, the router communicates information by exchanging Isa.
Four: how the ospf routing protocol works
Each router first finds its ow