ā07-17-2012 06:29 AM - edited ā03-04-2019 05:00 PM
Hi cisco kids,
can somebody please tell me what is a maximum number of configurable gre tunnel interfaces on CISCO2921-HSEC+/K9 router?
ā07-17-2012 06:55 AM
Hello Adis,
the limit in the number of GRE tunnels come from the limits of the IDB table the database that contain all the interface objects.
see this document about IDB limit
http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_tech_note09186a0080094322.shtml
Table 5 provide limit for C2921 in 1400 interfaces (including all physical interfaces, loopbacks and tunnel interfaces)
I would say 100 GRE Tunnels may be a practical limit.
Hope to help
Giuseppe
ā07-18-2012 04:01 AM
Thanks for the post.
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