From: ccie (ccie@gannons.net)
Date: Sat Nov 13 2004 - 12:37:53 GMT-3
You can see IDB information on most newer IOS's by doing:
r6#sh idb
Maximum number of IDBs 300
8 SW IDBs allocated (2608 bytes each)
6 HW IDBs allocated (4720 bytes each)
HWIDB#1 1 ATM0 (HW ATM)
HWIDB#2 2 Ethernet0 (Ether)
HWIDB#3 3 Loopback0
HWIDB#4 4 Serial0 (Frame relay, Serial)
HWIDB#5 5 Serial1 (Serial)
HWIDB#6 6 Serial2 (Serial)
r6#
As to the VRF limit its not simply just about the VRF's but also about
the memory useage. Also some
platforms noteably the 3550 have a HW limitation rather than a resource
one. Also the multi-ce
vrf lite limits can be different again.
Regards,
Kevin
> Hi All,
> anybody knows how to know how many VRF can be created on a router ?
> and also how many sub-interface can be created under a fastEthernet
> interface ?
> I read from cisco docs its depends on interface Description Block
> (IDB) but I didnt find how to know availability of free IDB, anybody
> can help ?
>
> thanks,
>
>
> rgds,
>
> Ali
>
>
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