I tried this once as a 'last shot' solution for a problem I was encountering, across gig network with sustained traffic rate over the tunnel of around 80Mbps. CPU instantly skyrocketed and the switch cried no more. The switch had very minimal other traffic (around 20Mbps) and very basic config, no ACL's and all static routing with a little bit of RIP.
Based on that first hand experience, I would say that the impact will be a non functioning network and would highly recommend against doing it. Regards, Nick. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ian MacKinnon Sent: Thursday, 15 January 2009 3:07 AM To: [email protected] Subject: [c-nsp] GRE on Cat-4948 switch Hi All, Does anybody have any idea the impact of running multiple GRE tunnels on a 4948 switch? I can see that it will be processed by software rather than hardware, but just how much of a problem is this likely to be? I am only talking about a max of 100M of GRE traffic, amongst a couple of Gig of total traffic. thanks -- This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the sender. Any offers or quotation of service are subject to formal specification. Errors and omissions excepted. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of Lumison and nPlusOne. Finally, the recipient should check this email and any attachments for the presence of viruses. Lumison and nPlusOne accept no liability for any damage caused by any virus transmitted by this email. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
