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Community Member

IGMP for IP/TV

hello all,

that's my problem,

+

i have a LAN, witch 4507, and 18 cisco 2960, all running in basic ios image((cat4500e-IPBASE-M), Version 12.2(50)SG3) ((C2960-LANBASEK9-M), Version 12.2(44)SE6 ), all acces switch are connected with the Giga 0/1 port to the core switch with Fiber.

i have 18 Vlans, the Vlan 4 is fir the IP camera, and encodeur, the Vlan 6 is for the camera client, our encodeur use multicast to diffude a video to the clients in VLAN 6, and i have a probleme when the encoder when i watch more 6 camera at the same time ( 1 camera use 4 Mb/s ),

i need the configuration to put in the core and acces Switch, to reduce a multicast in my network,

i pute this configuration but its dosnt work:

in the acces switch :

ip igmp snooping vlan 4 mrouter interface Gi0/1
ip igmp snooping vlan 6 mrouter interface Gi0/1

in the core switch :

ip multicast-routing

interface Vlan4
ip address 10.0.4.200 255.255.255.0
ip pim sparse-dense-mode
ip igmp version 3

interface Vlan6
ip address 10.0.6.200 255.255.255.0
ip pim sparse-dense-mode
ip igmp version 3

thank u( sorry for my english )

3 REPLIES
Hall of Fame Super Silver

Re: IGMP for IP/TV

Hello Hamou,

see if  the following command

ip igmp limit is  supported on interfaces of your switches

ip igmp limit N

see

http://www.cisco.com/en/US/docs/ios/ipmulti/command/reference/imc_02.html#wp1044048

this could be of help in limiting

or more appropriate

ip igmp max-groups

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/52sg/command/reference/int_sess.html#wp1975868

Hope to help

Giuseppe

Community Member

Re: IGMP for IP/TV

thank for your help,

if someone can explain  this ip in this show commande : ( because it is not a multicast IP for my ip tv )

OSS1SWC01BT#show ip ig groups
IGMP Connected Group Membership
Group Address    Interface                Uptime    Expires   Last Reporter
oup Accounted
239.255.255.250  Vlan6                    09:53:11  00:02:22  10.0.6.22
239.255.255.250  Vlan4                    09:53:13  00:02:23  10.0.4.12
224.0.1.40       Vlan4                    09:55:00  00:02:27  10.0.4.200

Hall of Fame Super Silver

Re: IGMP for IP/TV

Hello Hamou,

224.0.1.40 is used by Cisco Auto RP protocol so no worries about this

239.255.255.250 is  part of a block that is a sort of private multicast addresses

see

http://www.multicast.org.uk/address-tools/scope-relative.html

this is used by some printers as explained here for SSDP protocol

http://www.nthelp.com/upnpscrewup.htm

Hope to help

Giuseppe

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