On Sun, Jul 29, 2001 at 03:45:57PM +0300, Elijah Kagan wrote:
> I am sure this is one of the most asked questions here....
>
> What is the maximum number of interfaces (and sub-interfaces) supported by
> 7200/NPE-400 running 12.0(15)S and higher? Where this information can be
> found? And what exactly 'show idb' tells me about all this?
On 12.0(17)S, I see:
vxr15#sh idb
Maximum number of IDBs 3000
26 SW IDBs allocated (2368 bytes each)
22 HW IDBs allocated (4064 bytes each)
HWIDB#1 1 FastEthernet0/0 (HW IFINDEX, Ether)
...
...
etc...
The max number of interfaces/subintefaces is the "Maximum number of
IDBs', which in this case is 3000. There's no guarantee that you'll
be able to do arbitrary stuff over all 3000 interfaces (good luck
having 3000 EBGP peers, for example), but 3000 is the upper limit.
'sh idb' tells you about the number of SW and HW IDBs. "Number of
IDBs" is really "number of SW IDBs". Every physical interface or
channel/timeslot takes a HW IDB; every interface (anything you can put
an IP address on, basically) takes a SW IDB.
eric
>
> Thanks,
>
> Elijah
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:47 EDT