[c-nsp] 4948 MAX Arp entries

Cheikh-Moussa Ahmad acm at axians.de
Sat Apr 11 08:51:09 EDT 2009


Hi Guys,

it looks like my question wasn't that easy. Anyone knowing a good link,
where to find more specific informations about TCAM ?

Regards,
 Ahmad


> -----Ursprüngliche Nachricht-----
> Von: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] Im Auftrag von Cheikh-Moussa Ahmad
> Gesendet: Donnerstag, 2. April 2009 14:26
> An: cisco-nsp at puck.nether.net
> Betreff: [c-nsp] 4948 MAX Arp entries
> 
> Hi Guys,
> 
> I have searched a lot of sites and unfortunately didn't find a answer.
> Can someone tell me, how much arp entries (adjacencies) a 4948 switch
> can handle ?
> For L2 switching it can has up to 32K or the 4948-10g up to 55k entries,
> but I could not
> find anything about the max arp entries. As far as I know this arp
> entries or adjacencies
> are stored in TCAM. So the 4948 series can have 64k entries in the TCAM.
> 
> Am I right, when I say :
> TCAM 64K =
> 32K IPv4 unicast routes
> 32K Unicast arp entries (adjacencies)
> 
> What about the acls and qos configuration ? These are also stored in
> TCAM, right ?
> So if this right, then I never reach this, what I can found on the
> datasheets of the
> switches :
> * Unicast and multicast routing entries: 32,000
> * Policers: 512 ingress and 512 egress
> * Access control list (ACL) and QoS entries: 32,000
> 
> Could it be that all these features share the same TCAM ?
> I'am little bit confused.
> 
> Regards,
>  Ahmad
> 
> 
> 
> 
> Ahmad Cheikh-Moussa
> Consultant
> Business Unit Carrier & Service Provider
> 
> AXIANS
> NK Networks & Services GmbH
> Fischertwiete 2, Chilehaus A
> 20095 Hamburg
> 
> Tel.:  +49 40 237 899 - 72
> Fax:   +49 40 237 899 - 69
> 
> Ahmad.cheikh-moussa at axians.de
> Acheikh-moussa at axians.de
> acm at axians.de
> www.axians.com
> 



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