About Gongyuan Yao

Gongyuan Yao · 05-16-2011

Hi,We have ASA 5580-40 with rel ver 8.1(2). During testing mcast, we found that if we do not configure IGMP static group or join group with specific mcast group ip addr, the mcast will not work, the client application can not join the specific mcast ...

Gongyuan Yao · 04-22-2011

Hi,We are trouble shooting a mcast problem. There are two routers are connected through a tunnel for mcast. The tunnel interface is up, but from sho ip igmp groups cmd, we see tunnel interface is in "stopped" state.Can anyone please explain the reaso...

Gongyuan Yao · 03-03-2011

Hello,We have 3750G and 3650G with IOS rel 12.2(50)SE3. According to Cisco document, these switches should support IP v4 and v6 dual-stack configuration (after 12.2SE). I have searched many Cisco IP v6 online help, but can not figure out how to enabl...

Gongyuan Yao · 09-24-2010

Hi all,I have a pre-deployment test bed have a 6509 720 sup engine system with a 16 port 10G, and a ASA, a 4900M and VeEX testers. With 2 data streams, 10G traffic generated from tester, the 10G card in 6509 system only can provide about 50% util b...

Gongyuan Yao · 09-15-2010

Hello, I am doing a pre-deployment testing for our new ASA. We are using VeEX tester to generate 10G traffic. Unfortunately, this tester does not have layer 4 traffic support for 10G, all of UDP header, etc. belong to DATA and only can fill 16 bytes ...

Gongyuan Yao · 10-11-2012

No. this issue has not been solved so far as I know. Thx.

Gongyuan Yao · 05-19-2011

Hi AduThank you very much for your answer.Very sorry, your answer is not the correct one. The problem was a bug in ASA rel 8.1(2)---it caused IGMP req dropped incorrectly. This bug has been fixed in ASA rel 8.2(4). After we discussed this with Cisco ...

Gongyuan Yao · 04-27-2011

Thanks for your help.Pls see the attached file for simple network connections and logs. We have RP---it is in ext-router (router's loopback addr 130.14.91.200).I can not see the mcast source for now, need to make some workaround to see it.Anyway, if ...

Gongyuan Yao · 04-27-2011

Thanks.The tunnel is used for multicast only through ASA as existing design. I believe the "stopped" status is not the problem.It is true that we are using PIM on the tunnel.Thanks again for your time and help.

Gongyuan Yao · 04-25-2011

Thanks.I have attached a log file for all of info from show cmds.From show ip igmp group detail, we can see that interface tunnel0 is in Group Mode: INCLUDE, so the "stopped" status might be ok.According to Cisco doc:"The word "stopped" indicates tha...

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ASA mcast IGMP static mcast group

IGMP group interface state as "Stopped"--meaning and how to fix this

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any performance data for 6509 16 port 10G--Thx

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Re: ASA mcast IGMP static mcast group

Re: IGMP group interface state as "Stopped"--meaning and how to

Re: IGMP group interface state as "Stopped"--meaning and how to

Re: IGMP group interface state as "Stopped"--meaning and how to