Has anyone tested the L2/L3 aggregation using the AP225s and 6.3.1 ?
We have it runnning on a testbed and just finding it odd how the GRE Striping IP is utilized.
The IP does migrate if you're using L2 VRRP redundancy on the lms-ip which is good, but
it does add a substantial delay (upto 30sec) for the GRE Striping tunnel to get dragged along.
(A typical VRRP change is handled in less than 5sec)
The primary question I have is if the GRE Striping IP need to be a routable address anywhere?
I've tested it with addresses on the controller's primary VLAN, with addresses on a secondary
VLAN, and even with private 172.30.x.y addresses that don't show up anywhere else on the
controller or network. I'm not sure if I'll run into some problem later if I use private addresses on the
GRE Striping IP? I included the relevant section from the User Guide. The example shows using
a GRE Striping IP on the same subnet as the LMS, but doesn't really say if that's required.
-----------------------------------------------------------------------------
Link Aggregation Support on AP-220 Series
AP-220 Series access points support link aggregation using either standard port-channel (configuration based) or Link Aggregation Control Protocol (protocol signaling based). AP-220 Series access points can optionally be deployed with LACP configuration to benefit from the higher (greater than 1 Gbps) aggregate throughput capabilities of the two radios.
Configuring LACP on AP-220 Series
To enable and configure LACP on AP-220 Series, access points configure the LMS IP parameter and the GRE Striping IP parameter in an AP System profile. The GRE Striping IP value must be an IPv4 address owned by the controller that has the specified LMS IP. The GRE Striping IP does not belong to any physical or virtual interface on the controller, but the controller can transmit or receive packets using this IP.
LACP configuration is not applicable to the other AP models.
Using the CLI
Execute the following commands to configure the LACP parameters (LMS IP and the GRE striping IP) on an AP system profile:
(host) (config) #ap system-profile LACP
(host) (AP system profile "LACP") #lms-ip 192.0.2.1
(host) (AP system profile "LACP") #gre-striping-ip 192.0.2.2
Ensure that the gre-striping-ip is unique and not used by any other host on the subnet.