multiples interconections

Latest reply: Jun 3, 2015 21:45:30 1305 7 0 0


Hello, please help me to know why the swtiches s5700 and s3700 do not permit more than one interconexión devices, i mean the switches only turn on the interfaces ge0/0/1 no one else, only if i conect a PC.


multiples interconections-1322321-1

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Created May 25, 2015 10:56:11 Helpful(0) Helpful(0)

Please wait..
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Created May 27, 2015 09:57:38 Helpful(0) Helpful(0)

Reply 2 #

Hello, do you have good news??.


please tell me i f you need something else, in order to solve this issue.



Best regards.


Ricardo Sanchez

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Created May 28, 2015 18:03:38 Helpful(0) Helpful(0)

Have you bind g0/0/1 and g0/0/3 to one Eth-trunk?

If not, g0/0/1 and g0/0/3 will be a loop, then one port will shutdown.

If you keep the loop, you can excute stp disable in two S5700, and see whether the port will up or not.

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Created May 28, 2015 21:36:25 Helpful(0) Helpful(0)

thanks a lot for your help, but there is not an STP issue or a loop.

before I have reported the issue I made many test in order to be sure that there is not a configuration problem,

let´s suppose that there is a loop, so way the conections to the routers don not turn on?, becouse the cpu utilization is to hight? well its possible but there is nor the roort couse.

I belive that is a bug in the simulation´s software, however only to show you that the problems does not the STP or a loop problem I created a new topology with single interconection between switches, were I disabled the STP, and I have got the same issue.

in the attached you can see the results.

best regards.

Ricardo Sanchez.

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Created May 28, 2015 21:48:56 Helpful(0) Helpful(0)

Reply 5 #

this is the new topology.multiples interconections-1689491-1

multiples interconections-1689491-2

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Created Jun 3, 2015 17:57:44 Helpful(0) Helpful(0)

If you think it is a software issue, you can use the newest version.|9856717|21096933|9858914|9017384

Is there some special configuration on your devices? I simulate your scen and ports are normally up.

multiples interconections-1717751-1

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Created Jun 3, 2015 21:45:30 Helpful(0) Helpful(0)

Reply 7 #

thats good!!!!

I am running the software versión V100R002C00 it seems to be that is the newest versión, please tell me what versión did you used.

I have a good news, I found other way to  turn on the ports, only put a hub in the middle of interconection switches,

and now all ports are up.

multiples interconections-1718231-1



multiples interconections-1718231-2

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