Port channel between x440g2 48 p and cisco cat 6500

[Lutha]

i have configured port channel on my cisco and extreme switch but when i connect the interfaces the port channel doesnt come up not sure what i am doing wrong here. please see configuration

CISCO CONFIG
------------------------------------------------------------------------------------------

interface Port-channel2
description 7th Floor Copper Trunk Uplinks
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1-14,16-20,24-29,31-4094
switchport mode trunk
bandwidth 4096000
no ip address
logging event link-status
logging event spanning-tree status
logging event bundle-status
logging event trunk-status
load-interval 30
snmp ifindex persist
mls qos trust cos
spanning-tree portfast trunk
spanning-tree link-type point-to-point
end

interface range GigabitEthernet2/11 - 12
description 7th Floor Copper Uplink 1
switchport
switchport trunk allowed vlan 1-14,16-20,24-29,31-4094
switchport mode trunk
no ip address
logging event link-status
logging event spanning-tree status
logging event bundle-status
logging event trunk-status
load-interval 30
keepalive 30
mls qos trust cos
spanning-tree portfast trunk
spanning-tree link-type point-to-point
channel-protocol pagp
channel-group 2 mode desirable
end

EXOS CONFIG
-------------------------------------------------------------------------------------------------
enable sharing 1:2 grouping 1:2,3:48 algorithm address-based L2

sh sharing detail
Load Sharing Monitor
Config Current Agg Min Ld Share Dist Ld Share Agg Link Link Up
Master Master Control Active Algorithm Flags Group Mbr State Transitions
================================================================================
1:2 1:2 Static 1 L2 A 1:2 Y A 5
L2 3:48 - R 1
==============================================================================

[Erik_Auerswald]

Hi Lutha,

you should verify that the links are connected the way you want. You could enable LLDP on both the Cisco and Extreme switches, enable just one of the links, and then verify LLDP neighbors on both switches, and verify LACP information received on both switches.

Then you disable this port again and enable the other port. There you perform the same checks.

After that you closely examine the the LLDP and LACP information, as well as the logs of both switches, if everything is OK.

Since you seem to be using STP, you should verify STP operation as well.

Your configuration looks OK on first glance, I have not yet experienced problems with LACP between Cisco IOS and EXOS switches. Thus I'd say you need to dig deeper to find the root cause.

Thanks,
Erik

[GONÇALO_NUNO_CO]

Hi Lutha

This is what i have on my switches and the port channel works

on cisco side:
interface Port-channel20 description SCPDA010200 switchport switchport trunk native vlan 999 switchport trunk allowed vlan 100,113,201,300,400,501,601,613,1000,1200 switchport mode trunk logging event link-status storm-control broadcast include multicast storm-control broadcast level 2.00 spanning-tree guard loop ip dhcp snooping trust end interface TenGigabitEthernet1/14
description SCPDAA010200 3:49
switchport trunk native vlan 999
switchport trunk allowed vlan 100,113,201,300,400,501,601,613,1000,1200
switchport mode trunk
logging event link-status
storm-control broadcast include multicast
storm-control broadcast level 2.00
channel-group 20 mode active
spanning-tree guard loop
ip dhcp snooping trust
end interface TenGigabitEthernet1/13
description SCPDAA010200 2:49
switchport trunk native vlan 999
switchport trunk allowed vlan 100,113,201,300,400,501,601,613,1000,1200
switchport mode trunk
logging event link-status
storm-control broadcast include multicast
storm-control broadcast level 2.00
channel-group 20 mode active
spanning-tree guard loop
ip dhcp snooping trust
end
on Extreme side:
enable sharing 2:49 grouping 2:49,3:49 algorithm address-based L2 lacp If you are using fiber you should configure the guard loop also by default on MSTP and RSTP the link types are point-to-point.

Hope this helps

Regards

[Erik_Auerswald]

Since the switches slow down after activating both links there seems to be a significant problem, thus if you try to use a static LAG, you would probably make the situation worse.

[Lutha]

Is there another method of acheiving this between cisco and extreme