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Chapter 2

IP Multicast in a Campus Network

IP Multicast Medium Campus Design

Figure 2-6

Medium Campus Design Reference Diagram

VLAN 2 data

VLAN 3 data

VLAN 12 voice

VLAN 13 voice

3550-b1-

3550-b2-

right-access

left-access

Building 1

3524-b1- left-access

VLAN 4 data VLAN 14 voice

Building 2

VLAN 5 data VLAN 15 voice

4k-b2- right-access

Access layer

Trunk

(HSRP)

4kS3-bldg1- dist left

4kS3-bldg1-

4kS3-bldg2-

dist right

dist right

4kS3-bldg2- dist left

Distribution layer

Core layer

6509-left-core

Layer 3

6509-right-core

Data Center

VLAN 10

VLAN 11

CallManager with MoH

IPTV server

76646

In this design:

The access layer uses switches that support both IGMP snooping (Catalyst 3550 and Catalyst 4006 with Supervisor III) and CGMP Client (Catalyst 3524-PWR).

The RPs are located on the two core layer switches (Catalyst 6509-left-core and Catalyst 6509-right-core).

PIM-SM is configured on all distribution switches and core switches. Anycast RP is configured for fast recovery of IP multicast traffic. PIM-SM and MSDP are enabled on both core switches. Each distribution switch points to the Anycast RP address as its RP. MSDP is used to synchronize SA states between both core switches.

Cisco AVVID Network Infrastructure IP Multicast Design

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