Hi All,
I was hoping some of you could assist me with an Etherchannel issue that I encountered when connecting 2 * 1 GB lacp bundled ports from a Cisco 6513 to an F5 load balancing appliance.
Details of Equipment:
Cisco 6513
Version: sup-bootflash:s72033-ipservicesk9_wan-vz.122-33.SXH6.bin
Includes: 48-port 10/100/1000 RJ45 EtherModule WS-X6148A-GE-TX
BIGIP:
Model: 6800
Version: 10.2.4
Cisco port channel configuration:
interface Port-channel17
switchport
switchport access vlan 246
switchport mode access
Interface port configuration:
channel-protocol lacp
channel-group 17 mode active
BIGIP “trunks” as they are called have been configured as follows:
Interfaces: untagged
Speed: auto speed/
Duplex: auto
Protocol: lacp
LACP Mode: Active
LACP Timout: Long
Link Selection Policy: Auto
Frame Distribution Hash: Source/Destination IP address
Once I activate the port channel on the Cisco and BIGIP, the following etherchannel summary appears:
17 Po17(SU) LACP Gi1/48(P)
17 Po17A(SN) LACP Gi13/3(w)
The ports on the Cisco end attempt to bundle and for a moment, both have a “P” flag, until one of the ports dropout under Po17A as seen above. I have played with the various modes (on, active & passive) but to no avail. I even changed the port channel to a trunk (on both Cisco and BIGIP), but the ports refuse to bundle. Lastly, I have hardcoded the speed and duplex settings on both ends but again, the port channel does not bundle.
Even more bizarre, we have a datacentre design where all our network devices are configured as hardware HA pairs. Having applied the exact same configuration to our standby 6513 and BIGIP, the port channel interfaces bundle together as soon as the portchannel is activated.
Any advice would be most appreciated.
Jamie
