Security, Timers, and Traffic Engineering in IP Multicast Networks
The following example shows a boundary on VLAN2 connected to an access layer. The boundary shown permits the group range 126.96.36.199 and denies all other streams on the VLAN2 interface.
interface VLAN2 description To Access VLAN 2 ip multicast boundary moh ! ip access-list standard moh remark Permit 239.255, Deny all others permit 188.8.131.52 0.0.255.255 deny any
Figure 8-1 shows a high-level view of how scoped boundaries can be used to restrict traffic to certain areas of the network. The “Allowed Scopes” list the permitted streams at each location.
Graphical View of Administrative Scoping Used with Boundaries
Allowed scopes IP/TV High-Rate - 184.108.40.206/16 IP/TV Medium-Rate - 220.127.116.11/22 IP/TV Low-Rate - 18.104.22.168/22 Multicast MoH - 22.214.171.124/22
Primary PVC Secondary PVC
Allowed scopes IP/TV Medium-Rate - 126.96.36.199/22 IP/TV Low-Rate - 188.8.131.52/22 Multicast MoH - 184.108.40.206/22
Allowed scopes IP/TV Low-Rate - 220.127.116.11/22 Multicast MoH - 18.104.22.168/22
Allowed scopes Multicast MoH - 22.214.171.124/22
Cisco AVVID Network Infrastructure IP Multicast Design