QoS used for temporarilly congestion CAC stops the links to be congested CAC is a supplement for LLQ Low Latency Queuing
Pre CUCM 9.0 Designed for Centralized deployments No Topology awarness (anything dynamic in the network)
Enhanced-CAC After CUCM 9.0 Desktop Video VS Immersive Video differenciation Network Modeling/Multihop XAN Topology support-Build a logical representation of the network Static feature / NOT Topology aware. Dynamic changes, Link failures. RSVP is the solution. RSVP is reservation of end to end bandwitdh, is aware of dynamic changes in a network. We need IOS Routers to participate in RSVP.
E-CAC multi cluster support Uses Locations, Links and Weights, resulting in the most effective Path selection (lowest cost/weight will win).
Locations represents a LAN links interconnect Locations and are used to define bandwitdh available. Links logically represent the WAN link. Weights are used on links to provide a cost to the effective path. Weights are only applicable when there is more than 1 path between any 2 locations. CUCM does the calculations and the least cost path/effective path is chosen. LBM CUCM actively tracks bandwidth accross any link that the network model indicates from originating Location to terminatin location.
Location Bandwidth Manager LBM New features as of CUCM 9.0 Path Assembly and Calculation Servicing Bandwidth Requests from Unified CM Call Control XML/TCP. Replication of Bandwidth Information to other LBMs within the cluster and between cluster (Inter-Cluster Locations CAC).
LBM Groups allow active and standby members. Therefore offering LBM Redundancy accross CUCM servers
Inter-Cluster E-CAC + LBM Extends Network Modeling accross multiple CUCM clusters. Clusters propagate their own topology to other clusters via the LBM network. The end result is a global or assembled topology, which represents all learned topologies in the LBM network. Full picture called Global when comes to modeling accrosse multiple clusters.
SIP Trunk to the shadow location
H323 ICT does not support location
In the SIP Invite header, there is CALL-INFO, this field contains information about locations, class of traffic, desktop video immersive video, what is the class of this traffic.
Shadow location is already running on CUCM, assign a sip trunk, this sip trunk can be used for E-CAC, to pass information in the sip invite when the call is setup.
I'm trying to register the expressway C to control hub. I put in the fqdn and it opens my expressway. but when I click on updated software & verify connection I get "Failed: Update failed to complete within time limit." It is not a firewall issue as I...
I am using ASR 1001-x w/SBC using SIP trunks. I’ve been following “CDR Accounting for Cisco IOS Voice Gateways” ( September 17, 2019) and I’m trying to create RADIUS CDRs that match the standard .csv CDRs (based on what I’ve read that should be doabl...
I'm working to upgrade a 12.5 SU1 w/ the latest device pack before upgrading to SU5 in a couple of weeks. It's a 2 site cluster and in the past I've installed the DP on the publisher, then on the subscriber and then rebooted the cluster 1 node at a ...
Hello,I'm new the Cisco community. I'm a visually impaired user. I got CP-8861-3PCC due to it's voice feedback feature. It works as I expected, awesome!I'd like to adjust my handset rest according to user manual; however it seems that my device does...
I am new to the sip trunk configuration. I have a sip trunk for FreePBX to make calls to PSTN via CUCMEI am having issues connecting to PSTN from my config despite matching dial-peers. See debug below Debug Oct 26 14:55:49.997: //-1/xxxxxxx...