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New Member

GSS - Keepalive using TCP/VIP


I created content is the CSS for FTP

When i used Keepalive type as ICMP for GSS answer everything is working fine.

when I configured GSS Answer using keepalive VIP/TCP the answer status is offline.

when i do tcp dump on the GSS interface the keepalives are sending from the GSS.

Do i have to do any configuration in CSS to respond to GSS keepalives.

Cisco Employee

Re: GSS - Keepalive using TCP/VIP

Are you doing KAL-AP ?

Or is it TCP keepalive and the GSS is just opening a TCP port with the CSS VIP ?

Is your content rule alive ? Check with 'show summary'

Did you try it from a client ?

Is there a firewall between GSS and CSS ?

Try to capture a trace on the CSS.

Does the real servers know how to reach the GSS ?


New Member

Re: GSS - Keepalive using TCP/VIP

Hi Giles,

Thanks for quick response . I didnt configure GSS-TCP-KEEPALIVES on the interface and now it is working.

New Member

Re: GSS - Keepalive using TCP/VIP

Hi Gilles,

I am doing something similar as well. Problem that I am having is that when my services are down, my gss can still establish a three way handshake with the css and therefore the gss thinks that the services are up. Should the css stop replying to any tcp syns when the services associated with the content rule are down? Thanks for your help.

New Member

Re: GSS - Keepalive using TCP/VIP


If all the services are down the VIP address associated with CSS should be down.I guess there are other services keeping the VIP address alive and making three way handshake.

Send the configuration to have a close look about your issue.

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