Answer / guest

STP is a Protocol used for the loop free environment, when a
network is totally based on a switch....as we know that to
ensure the all time availability of the network we have to
develop redundancy....if the destination is unknown and has
to find out by the switch.... now because of this redundancy
loop occurs..

to solve this problem STP is used..in STP there is a main
head of all switches called ROOT BRIDGE (the Switch having
lowest MAC address or Lowest Priority value - default is 32678).

Main step is to find out all the possible paths to each
destination. After that root bridge uses STA (spanning Tree
algorithm)to find out the best suitable path to the destination.
Other paths to the same destination are set to blocking
mode to avoid the looping....
In this the other non-Root bridge switches continues to
update them selves by receiving the BPDU every 2 secs
generated by the root bridge....

In STP there are five main modes that a switch can have:
1. Blocking :in this case the switch doesn't forwards the
data, but receives BPDUS
2. Listening :in this switch starts checking the updates
3. Learning :in this the switch starts updating itself,
according to the updates
4. Forwarding :switch starts forwarding the main data(here
the network is called as Converged-meand each and every
switch has its cam table equal)
5. Disabled :port is disabled by admin

Answer / ramesh

STP is a spanning tree protocol which is used in switched
network to avoid the network loop in the network.

Answer / rahul sharma

STP is a Protocol used for the loop free environment, when a
network is totally based on a switch....as we know that to
ensure the all time availability of the network we have to
develop redundancy....if the destination is unknown and has
to find out by the switch.... now because of this redundancy
loop occurs..

which utility should use to test whether TCP/IP has been initialized on a system.friends plz post the answer with explaination..

3 Answers   Wipro,

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hi all.. can any one explain the complete topology of stp and rstp how it works . root swtch connects to a root port and then root port conenct to other switchs designated port. i was going thru his site http://www.cisco.com/en/US/tech/tk389/tk621/technologies_whi te_paper09186a0080094cfa.shtml in which DR also exist on root switch only which makes my understanding grim.I had a diff notion of stp all together. please post asap. and if possible refer a url so thst i can read it my self .. thanks

1 Answers  

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When using TCP, after a session is open, the applications can adjust the amount of segments they receive before sending an acknowledgment. This behaviour is known as ______________. FCS Windowing MTU adjustment Flexible Send Path

1 Answers  

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what are loops in switches excactly...and how does it gets created???

1 Answers  

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Which ipsec rule is used for the olympia branch and what does it define? (Choose two)

0 Answers  

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Identify the number range for IPX SAP filters? A.) 900 - 999 B.) 1000 - 1099 C.) 800 -899 D.) 100 - 199

1 Answers  

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What is the default IPX Ethernet encapsulation? A.) SNAP B.) Arpa C.) 802.2 D.) Novell-Ether E.) SAP

2 Answers  

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Company XYZ has an employee that works out of the home. The employee runs big client server applications and must quickly transfer large files. The company wants the best cost/benefit on this connection. What would be the most practical solution? A. an ISDN Basic Rate Interface (BRI) connection to the user at home B. a dedicated T1 connection to the user at home C. a dedicated Frame Relay connection to the user at home D. a standard 28.8 analog dialup connection to the user at home

2 Answers  

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Can you explain the basic of encryption in VPN?

0 Answers   CCIE,

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Identify 3 Fast Ethernet technologies? A.) 100 Base FastEther B.) 100 Base FX C.) 100 Base T4 D.) 100 Base TX

1 Answers  

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Which type of LAN segmentation device enables high speed data exchange? A. hub B. bridge C. switch D. repeater

3 Answers   Accenture, TCS,

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A router blocks ___________ Broadcasts Unicasts All packets Nothing

1 Answers  

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