On Wed, 13 Jul 2011, Peter Rathlev wrote:
On Wed, 2011-07-13 at 10:01 +0200, Matteo Castelli ML wrote:
I am starting a project to implement VRF-lite for some customers,
does anybody know (or have a link to some Cisco documentation) the
maximum number of VRF-lite instances in the different ISR G2 routers
models of Cisco?
I tried creating a bunch of VRFs on a plain 2801 with 128M RAM running
12.4(24)T3 Enterprise Base. It's not a G2, but the results should not be
worse.
It seems that the number of VRFs is only limited by memory. Statistics
for processor memory:
#VRFs Total(b) Used(b) Free(b) Lowest(b) Largest(b)
300 55234624 33762740 21471884 21387108 21400832
400 55234624 38923612 16311012 16234112 16255268
500 55234624 44236524 10998100 10934664 10919836
600 55234624 49404172 5830452 5754544 5763496
700 55234624 54614228 620396 557736 555396
If I remember correctly another limitation that affects the number of VRFs
is the number of software IDBs that are available in each platform.
"show idb" will show how many are available, and how they are used.
Regards,
John
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