We are currently in the process of implementing a Nortel IPT solution into a greenfield site. The switching infrastructure will all be Cisco - 4500's in the access-layer and 6500's collapsed distribution/core.
I am thinking of running layer 3 from the access-layer for fast convergence, equal cost load balancing. This is new for us as all our existing designs use layer 2 from access-layer but none of them have VOIP.
I am interested on any views on this and any pros or cons to this approach.
Are you proposing per-packet l/balancing or are you going to rely on CEF?
You will be aware an end-to-end VoIP call uses RTP/UDP and I believe there is a in-built re-ordering mechanism within this process. Therefore if packets arrive and are not hugely out of order/sequence there will not be an issue. However, if for some reason whatever that maybe - packets travel in a grossly non-symetrical fashion and arrive badly out of sequence, this it will degrade the call quality there is no doubt.
CEF LB is the way to go in a converged enterprise end user network imo.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.