On 10/30/2012 7:48 AM, Matthew Huff wrote:
Do you have pim or igmp snooping turned on?
Without a layer 3 "multicast router" configured, the 6509 will probably shunt
the traffic. Setup a SVI interface on that vlan and enable pim dense mode. If you don't
want multicast to pass the layer 3 boundry, you can setup a multicast boundry command on
the vlan.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Ambedkar
Sent: Tuesday, October 30, 2012 2:23 AM
To: [email protected]
Subject: Re: [c-nsp] Multicast packets dropping at 6509
Hi,
Phil Mayers:
1. Data rate: 4 kbps
2. Line cards: 1000BaseX supervisor WS-X6K-S2U-MSFC2
1000BaseX Ethernet, WS-X6408A-GBIC
CatOS 8.3
Matthew:
1). As we are in the same VLAN, the data is not going to Lyaer-3
2). we are using, pim-dense
Null:
we are not observing such kind of behaviour. what we are observing is that
one of the switch is not creating any multicast table, when we see in the
mac-address table multicast, there is no multicast table. when we replace
Cisco 6509 with cisco 2950 switch it is working fine.
thank you
On Mon, Oct 29, 2012 at 11:08 PM, null zeroroute
<[email protected]>wrote:
I'm familiar with a bug CSCsk07136 that was found about 4 years ago that
causes the multicast table to dump on a hybrid 6500 (catos) every time a
port in the same VLAN went down/up. Basically, all members of a group
would lose access to the group every time a port in the same VLAN, on the
same 6500, dropped. I believe the problem was fixed in a later release,
however we upgraded to native and no longer experienced the issue. The
only workaround was to statically assign hosts to the required groups.
On Mon, Oct 29, 2012 at 6:18 AM, Ambedkar <[email protected]> wrote:
Hi,
I am facing a problem in multicast..
The scenario is like this, 2 layer-2 switches(2950) and 1 Layer-1
switch(cisco 6509).
These three switches are connected in series, L2-L3-L2. The problem is the
packets are dropping at L3(Cisco 6509) switch using catOS. The multicast
data is flowing in SAME vlan, means eventhough L3 is there in between, the
data is flowing at layer-2 only.
Please help me...
Thanks,
Ambi
Have a look at this. Take some time to understand your options.
http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a008059a9df.shtml
If you must stay layer 2, I would suggest IMGP querier and then static
mrouter port. If you are not familiar with multicast please understand
what the implications of doing the above are before you get on the CLI.
tv
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