Cisco 2950G 24 Software Configuration Guide - Page 406
MVR Configuration Guidelines and Limitations, Configuring MVR Global Parameters
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Configuring MVR Chapter 17 Configuring IGMP Snooping and MVR MVR Configuration Guidelines and Limitations Follow these guidelines when configuring MVR: • Receiver ports cannot be trunk ports. Receiver ports on a switch can be in different VLANs, but should not belong to the multicast VLAN. • The maximum number of multicast entries that can be configured on a switch (that is, the maximum number of television channels that can be received) is 256. • Each channel is one multicast stream destined for a unique IP multicast address. These IP addresses cannot alias between themselves or with the reserved IP multicast addresses (in the range 224.0.0.xxx). Note For complete syntax and usage information for the commands used in this section, refer to the command reference for this release. Configuring MVR Global Parameters You do not need to set the optional MVR parameters if you choose to use the default settings. If you do want to change the default parameters (except for the MVR VLAN), you must first enable MVR. Beginning in privileged EXEC mode, follow these steps to configure MVR parameters: Step 1 Step 2 Step 3 Command configure terminal mvr mvr group ip-address [count] Step 4 mvr querytime value Step 5 mvr vlan vlan-id Purpose Enter global configuration mode. Enable MVR on the switch. Configure an IP multicast address on the switch or use the count parameter to configure a contiguous series of MVR group addresses (the range for count is 1 to 256; the default is 1). Any multicast data sent to this address is sent to all source ports on the switch and all receiver ports that have elected to receive data on that multicast address. Each multicast address would correspond to one television channel. Note Each IP address translates to a multicast 48-bit MAC address. If an IP address being configured translates (aliases) to a previously configured MAC address or to any reserved multicast MAC addresses, the command fails. (Optional) Define the maximum time to wait for IGMP report memberships on a receiver port before removing the port from multicast group membership. The value is in units of tenths of a second. The range is from 1 to 100 and the default is 5 tenths or one-half second. (Optional) Specify the VLAN in which multicast data is received; all source ports must belong to this VLAN. The VLAN range is 1 to 4094. The default is VLAN 1. 17-16 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01
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