In the situation where you have two locations connected by a leased line, one site is the DC and one the remote site. Both sites use WCCP redirection to the WAE which is directly off the WAN router. If the remote site WAE fails what is
a) the consequence for the optimised traffic? does the DC WAE notice that the TCP session has been terminated and ceases to optimise traffic to this location?
b) what is the estimated time before the DC WAE notices that the remote site has gone down? I am assuming all TCP sessions will be terminated and will need to setup again but this time from end to end?
a) The client or server behind the failed WAE would get traffic with inflated sequence numbers and would reset the traffic.
b) Immediately upon new connections via autodiscovery and also on existing conections via the reset (in a above), new TCP sessions would go through setup and autodiscovery again. If there is no WCCP cluster, they would be non-optimized.
I have tested this in our prod network before deployment, central site WAAS with WCCP to a WAN router, branch WAAS is inline. Reloading of remote WAAS takes 40 seconds.When I turn of the remote WAAS it takes exactly same 40 seconds for teh device to fall into the wire.Some applications recover, some fail depends application.
Topology & Design:
Two ACI fabrics
Stretching VLANs using OTV
Both fabrics are advertising BD subnets into same routing domain
Some BDs(or say VLANs) are stretched, but some are not.
Endpoints can move betwee...
VMware Trunk Port Group is supported from ACI version 2.1
VMM integration must be configured properly
ASA device package must be uploaded to APIC
ASAv version must be compatible with ACI and device package version
Topology &Design:Traffic flow within same fabric:Endpoint moves to Fabric-2Bounce Entry Times OutTraffic Black-holedSummarySolutionAppendix:
In the Previous articles of ACI Automation, we are using Postman/Newman a...