This is an interesting question. The answer I obtained from Cisco, was that HA (at least in the 4.0 release) provides only server-level redundancy and not network redundancy, and that the both servers needed to be in the same location, and connected to the same switch. Apparently even Layer 2 connectivity across a GigE connection is not supported because some failure could partition the network, potentially resulting in two Masters and consequential loss of synchronisation.
is there any cisco documentaion on this. I can not find anything. I can not find anything that says what the bandwidth requirements are between 2 Ipcc HA servers, like keep alives. Any help would be great
When designing an IPCC Express deployment, the following rules apply:
? The CRS Engines and Databases components must be co-located in the same building with the CallManager servers running the CTI Managers with which IPCC Express will be communicating. Other CallManager nodes within the same CallManager cluster (if this is a CallManager cluster split over the WAN) can be located on other VLANs.
? CRS Engine and Database components must be co-located on the same VLAN.
? When deploying High Availability (HA), the CRS Engine and Database components must both be redundant and collocated in the same building.
? If recording is going to be used for a HA deployment, then the Recording component must be redundant.
? All agents for an IPCC Express deployment must be using phones which register to the same CallManager cluster. Calls can be received from devices and callers on another CallManager cluster (using inter-cluster trunks).
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...
If you have 2 ISR routers, one acting as Failover, do we need to have both the same number of SRST licenses on the 2 routers?
No. You will only need the SRST licenses on the primary router. Because this feature...
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