Are there links between the two core switches? Is spanning tree enabled? Are there any errors in the logs? Is it just the internet that stops working or all network traffic?
What does show spanning-tree detail show? Before and after connecting the switches, it sounds like it is shutting down a loop and the traffic is getting blocked.
My apologies for the delay email, this time the switch has been in the production period, and for the information when I do testing port (gi2/0/2) CoreSwitch2 to connect laptop and setting vlan 101 (ex: IP : 10.0.1.100, netmask : 255.255.255.0, gateway: 10.0.1.254) I can not connect to the internet.
Then finally we connected SW1 and SW2 to the CoreSwitch1 all. I give you a sh spanning tree detail of the two core switches.
Surprisingly there are some switches that use the same topology (initial topology) with similar configuration and just different VLAN, but running normally (to the Internet). Here I give a sh spanning tree detail of the two core switches with the initial topology and running normally.
DELL-Josh Cr
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April 15th, 2016 10:00
Hi,
Are there links between the two core switches? Is spanning tree enabled? Are there any errors in the logs? Is it just the internet that stops working or all network traffic?
YANNURIN0701
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April 19th, 2016 01:00
Hi Josh,
Sorry for late reply, I will answer your question,
Q : Are there links between the two core switches?
A : Yes, in the two core switch there is one link.
Q : Is spanning tree enabled?
A : Yes, the spanning tree is enable.
Q : Are there any errors in the logs?
A : No there aren't
Q : Is it just the internet that stops working or all network traffic?
A : Yes, only on SW1 is working and connect inet, all port on SW2 cannot connect the inet, although it have same vlan configuration.
Please, kindly need your help,
Thanks Before.
DELL-Josh Cr
Moderator
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9.5K Posts
0
April 19th, 2016 09:00
What does show spanning-tree detail show? Before and after connecting the switches, it sounds like it is shutting down a loop and the traffic is getting blocked.
YANNURIN0701
8 Posts
0
April 30th, 2016 04:00
YANNURIN0701
8 Posts
0
April 30th, 2016 04:00
Hi josh,
My apologies for the delay email, this time the switch has been in the production period, and for the information when I do testing port (gi2/0/2) CoreSwitch2 to connect laptop and setting vlan 101 (ex: IP : 10.0.1.100, netmask : 255.255.255.0, gateway: 10.0.1.254) I can not connect to the internet.
Then finally we connected SW1 and SW2 to the CoreSwitch1 all. I give you a sh spanning tree detail of the two core switches.
For Core Switch 1 click here
For Core Switch 2 click here
Surprisingly there are some switches that use the same topology (initial topology) with similar configuration and just different VLAN, but running normally (to the Internet). Here I give a sh spanning tree detail of the two core switches with the initial topology and running normally.
For Core Switch 1 click here
For Core Switch 2 click here
Could it be there is damage to the port gi2/0/2 on Core Switch 2 ?
Please, kindly need your help.
Thanks before.
DELL-Josh Cr
Moderator
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9.5K Posts
0
May 2nd, 2016 11:00
It is possible, but unlikely that there is an issue with the port. Does it have link lights and show an up status when something is connected to it?