09-03-2010 12:09 AM - edited 03-06-2019 12:48 PM
HI all ¡¡¡¡¡¡¡¡
I have a switch powerconect (Dell/cisco).
I have one prolem. When i etablish channel group and LAG with another switch i cant ping the vlan interface 100.
If the interfaces are not in a channel group i can ping this vlan interface.
Why i can't ping the vlan interface when the LAG its etablished?¿¿?¿?
I put the config with explanation:
Ok, this is the config
!Current Configuration:
!System Description "PowerConnect M6220, 3.1.5.2, VxWorks 6.5"
!System Software Version 3.1.5.2
!System Operational Mode "Normal"
!
configure
vlan database
vlan 100
exit
hostname "SW-xxxxxxx"
stack
member 1 1
member 2 1
exit
switch 1 priority 12
switch 2 priority 11
exit
ip address none
ip routing--------->Routing for ipv4 enable
ip route 0.0.0.0 0.0.0.0 10.0.4.1 --->DEFAULT GATEWAY IN THE SAME SUBNET OF THE VLAN INTERFACE 100
interface vlan 100
routing
ip address 10.0.4.7 255.255.255.0-->VLAN INTERFACE 100
exit
!
interface ethernet 1/g17
channel-group 2 mode auto --------->member of channel group 2 and vlan 100
switchport access vlan 100
exit
!
interface ethernet 2/g17
channel-group 2 mode auto------->member of channel group 2 and vlan 100 mode auto(lacp)
switchport access vlan 100
exit
!
interface port-channel 2
switchport access vlan 100-------->Portchannel 2 member of vlan 100
In this escenario you can view 2 interfaces in a chanel group:
If the LAG its etablished with the other switch i can´t ping te interface 10.0.4.7.
If one interface (1/g17 or 2/g18)its not in the channel group i can ping the interface 10.0.4.7
Why i can't ping the 10.0.4.7 when the LAG its etablished ¿? Please help.
Solved! Go to Solution.
09-03-2010 02:39 AM
Hi,
it looks like , you have issue with STP.
I reckon , you need to disable the STP in dell ... I hope it will be connected with LAG
Please check it and let me know.
09-03-2010 02:39 AM
Hi,
it looks like , you have issue with STP.
I reckon , you need to disable the STP in dell ... I hope it will be connected with LAG
Please check it and let me know.
09-03-2010 03:14 AM
OMG ¡¡ Now it works.
STP its recommended with LACP. Why stp bloqs the ports???
Thanks ¡¡
09-03-2010 04:18 AM
Hi,
Due to internal connectivity structure of dell switches , it creates loop and keeps LAG ports in blocking . I had same issue and when i had raised query against dell , they recommanded that STP should be disabled.
I think , you are also having same issue.
Please give rating your query has got rectified.
09-03-2010 04:32 AM
Vinod , thanks a lot.
It was driving me crazy ¡¡¡¡
regards ¡¡
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