Unsolved
This post is more than 5 years old
12 Posts
0
32335
June 22nd, 2015 11:00
LAG problem on 6224 stack with N4032 stack
Hello,
I have two PC6224 switches in stack. I also have in modular bay 2 10gbit modules. I want to put all 10gbit ports in LAG to connect with N4032. Is that possible?
If I connect two 10gbit ports everything ois O.K., but as soon as I connect the third 10gbit port, everything stop to work. To be more precise - it looks like I created a loop!
Can anybody help?
No Events found!
rafkos
12 Posts
0
June 22nd, 2015 15:00
On 6224 stack, port configuration is:
interface ethernet 1/xg3
channel-group 3 mode auto
exit
!
interface ethernet 1/xg4
channel-group 3 mode auto
exit
!
interface ethernet 2/xg3
channel-group 3 mode auto
exit
!
interface ethernet 2/xg4
channel-group 3 mode auto
exit
!
interface port-channel 3
spanning-tree disable
switchport mode general
switchport general allowed vlan add 3,5-6,10,30,40,50,60,62,71,98-100 tagged
mtu 9216
exit
On 4032 stack port configuration is:
!
interface Te1/0/17
channel-group 3 mode active
exit
!
interface Te1/0/18
channel-group 3 mode active
exit
!
interface Te2/0/17
channel-group 3 mode active
exit
!
interface Te2/0/18
channel-group 3 mode active
exit
!
interface port-channel 3
spanning-tree disable
switchport mode general
switchport general allowed vlan add 3,5-6,10,30,40,50,60,62,71,98-100 tagged
switchport trunk allowed vlan 1,3,5-6,10,30,40,50,60,62,71,98,100
exit
Thank you for the help.
rafkos
12 Posts
0
June 23rd, 2015 08:00
Firmware is 3.3.10.3.
If I plug all 4 ports, network stoped to work - looks like network loop.
The most interesting thing is that everything worked 4 days ago, and suddenly it is not working anymore. In network topology nohing had changed. We did not add any new device/switch/server. It just stoped working.
rafkos
12 Posts
0
June 23rd, 2015 09:00
Stack-1#show fiber-ports optical-transceiver
Output Input
Port Temp Voltage Current Power Power TX LOS
[Volt] [mA] [dBm] [dBm] Fault
------- ---- ------- ------- ------- ------- ----- ---
1/xg4 40.5 3.283 8.1 -2.873 -20.757 No No
2/g22 35.1 3.355 7.6 -4.319 -6.198 No No
2/xg3 36.8 3.266 7.9 -2.428 -2.121 No No
2/xg4 0.0 6.553 131.0 8.165 8.165 No Yes
1/xg3 is conected with twinax cable and is currentlly unpluged.
2/xg4 is also twinax cable
If I enable spanning-tree everything is the same.
I did not try to connect 1/xg3 and 1/xg4 and disconnect ports on unit 2. I will try to do that tommorow, but I think the result will be the same.
If I connect all ports packets are dropped, pings are lost, until there is no ping and no traffic.