From: YJC (stiff.yu@xxxxxxxxxxxxxxxxxx)
Date: Thu Mar 01 2001 - 03:10:42 GMT-3
I use auto-rp,it isn't problem.I don't have problem ping the 224.5.5.5 from
R1, and R3
I can ping Multi address in r2 form catalyst,but I can't ping Multi address
in r3 form catalyst.
----- Original Message -----
From: Hu, Wayne <WHu@Timebridge.com>
To: 'Niall El-Assaad' <nelassaa@cisco.com>; David FAHED
<dfahed@outremer.com>
Cc: <ccielab@groupstudy.com>
Sent: Wednesday, February 28, 2001 11:19 PM
Subject: RE: Trying simple LAB multicasting
> When I did this, I found something strange
>
> R1(S0)-------(S0)R2(e0)--------(1/2)Cat5(1/3)--------(e0)R3
>
> R2 e0 has command : ip igmp join-group 224.5.5.5
> R1(S0), R2(S0), S2(e0) and s3(e0) have command ip pim sparse-mode
> R1 and R3 has static RP point to R2'loopback interface which is reachable
> from R1 and R3
>
> I don't have problem ping the 224.5.5.5 from R1, and R3
> but after I put command ip cgmp on R2(e0) and R3(e0), put command ip cgmp
> enable on Cat 5
> I am not able to ping the 224.5.5.5 from R1 and R3
>
> Removing CGMP related command on R2, R3 and Cat 5, the address 224.5.5.5
is
> reachable from R1 and R3.
>
> Can anyone help me to explain this?
>
> Thanks
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: Niall El-Assaad [mailto:nelassaa@cisco.com]
> Sent: Tuesday, February 27, 2001 5:28 PM
> To: David FAHED
> Cc: ccielab@groupstudy.com
> Subject: RE: Trying simple LAB multicasting
>
>
> Not sure I understand fully what you mean, but the Catalyst uses CGMP to
see
> which devices need multicast traffic.
>
> =======================================================
> Niall El-Assaad, Systems Engineer
> EMEA-UK Retail Finance North
>
> C i s c o S y s t e m s Mobile: +44 (0)772 088 4650
> VMail: +44 (0)208 734 4206
> | | Fax: +44 (0)161 864 4508
> | |
> ||| |||
> .:|||||:..:|||||:. E-mail: nelassaa@cisco.com
> ------------------ Web : http://www.cisco.com
>
> Eagle Court, Concord Business Park,
> Threapwood Road, Manchester, M22 ORR, United Kingdom
> ========================================================
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> David FAHED
> Sent: 26 February 2001 23:30
> Cc: ccielab@groupstudy.com
> Subject: Trying simple LAB multicasting
>
>
> I just begin in multicasting...
>
> 1) The lab say configure multicast R1,R2....
> No problem ip multicast-routing
> and on the interface ip pim dense-mode
>
> 2) Rx should explicity join the group 229.2.2.2
> no problem ip igmp join-group 229.2.2.2
>
> 3)Configure the catalyst to be able to see R1 and R2 are multicast router
> but no R3
> and configure catalyst to send traffic to 229.2.2.2
> Some useful link or explain will be welcome...
>
>
>
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:29:17 GMT-3