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Switching loops can cause misleading entries in a switch's media access control (MAC) database and can cause endless unicast frames to be broadcast throughout the network. A loop can make a switch receive the same broadcast frames on two different ports, and alternatingly associate the sending MAC address with the one or the other port.
In a simple reachability protocol, such as EGP, the routing loop will persist forever. In a naive distance-vector protocol, such as the routing information protocol, the loop will persist until the metrics for C reach infinity (the maximum number of routers that a packet can traverse in RIP is 15. The value 16 is considered infinity and the ...
With the split-horizon rule in place, this particular loop scenario cannot happen, improving convergence time in complex, highly-redundant environments. Split-horizon routing with poison reverse [ 4 ] is a variant of split-horizon route advertising in which a router actively advertises routes as unreachable over the interface over which they ...
This generates a storm of replies to the victim host tying up network bandwidth, using up CPU resources or possibly crashing the victim. [ 3 ] In wireless networks a disassociation packet spoofed with the source to that of the wireless access point and sent to the broadcast address can generate a disassociation broadcast DOS attack.
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Simple Loop Prevention Protocol (SLPP) in computer networking is a data link layer protocol developed by Nortel (previously acquired by Avaya, now a part of Extreme Networks) to protect against Layer 2 network loops. SLPP uses a small hello packet to detect network loops.