FYI I received your post all three times on the list : ) I agree that you should be seeing the information in the tables. I am not sure as to why or if it is a GNS3 thing, but you might want to try manually enabling IGMP Snooping globally or per VLAN. I know it is enabled by default, but you might want to give that a try and let us know how it works out. This is a real 2950 switch? How do you have version 12.4 ???
On Thu, Nov 26, 2009 at 6:03 AM, Taqdir Singh <[email protected]>wrote: > Not sure why I m not able to post my questions .. so forwarding 3rd time > :-) > > > > Hi Team : > > Could anyplease please clear this.. > > *Please see attached diagram and configurations.* > > Note :-- I am doing this practical on GNS3 not real routers/switches > 1) IGMP snooping is enabled on 6509 and 2950. > 2) IP Pim dense mode is enabled on Vlan 1 and Vlan 2 so that they can send > query. > > Now question is > > from SOURCE when I do a ping to 239.1.2.3 , I do get reply from Host 2 but > I dont see any outputs in mac multicast table and igm group table on 2950 as > below > > > *2950#show ip igmp groups* > IGMP Connected Group Membership > Group Address Interface Uptime Expires Last > Reporter Group Accoun > ted > *2950#show mac-address-table multicast* > > NM Slot: 0 > -------------- > > MACADDR VLANID INTERFACES > 2950# > > As per IGMP Theory , switch adds the corresponding ports who are interested > in receiving multicast to its forwarding table but i dont see it. Moreover > nothing is shown up in IGMP group table. Howver I see IGMP group on 6509. > > Could anyone please clear this concept when , On Which devices (Layer2 or > Layer 3) and how we see the IGMP snooping table ? > > -- > Taqdir Singh > Network Engineering > > "An expert is a man who has made all the mistakes which can be made" > > > > -- > Taqdir Singh > Network Engineering > > "An expert is a man who has made all the mistakes which can be made" > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > -- Regards, Joe Astorino CCIE #24347 (R&S) Sr. Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Classroom and Self-Study Cisco CCNA (R&S, Voice & Security), CCNP, CCVP, CCSP and CCIE (R&S, Voice, Security & Service Provider) Certification Training with locations throughout the United States, Europe and Australia. Be sure to check out our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com
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