1. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 1 Multicast Overview Webcast Joshua Ferguson Cisco Systems, Inc. Advanced Services josfergu@cisco.com

2. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 2 Unicast Versus Multicast Unicast Pros: Less Configuration Less hardware limitations Cons: More Bandwidth Required. Can be calculated as (number of streams * bandwidth of stream in kbps) Server must be able to scale to handle the number of connections.

3. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 3 Unicast Versus Multicast Multicast Cons: Network must be multicast enabled. Hardware must support multicast, switches should support IGMP snooping in hardware. Pros: Less bandwidth is required, the net effect on the network is one traffic stream. Server’s can easily scale to support multiple broadcasts 239.10.10.10

4. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 4 Inter-Agency Streaming Video  In order to perform Inter-Agency Video streaming the stream will need to be delivered to the Agency VRF as a Unicast. There are several reasons for this; Difficulty with Multicast through Firewalls Overlapping Group Addresses and Multicast Domains  The solution is to deliver a single unicast stream into the customer VRF and then use a media server to take that stream and multicast to the agency.

5. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 5 Inter-Agency Streaming Video SGN DIS Video Server Agency VRF Unicast Multicast

6. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 6 Overview of Enabling Multicast  Enable “ip multicast-routing” on all of the multicast routers.  Enable PIM on the LAN and WAN Interfaces.  Configure an RP, preferably Auto-RP, on one or more core devices.  Contact DIS NCC to multicast enable your VRF.

7. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 7