Packets between VIPs go through MEMD
which is located on the RSP.
Some, not all, PA's support local
switching on the VIPs.
Rodney
On Fri, Jan 14, 2005 at 03:55:02PM -0600, Steven Bertsch wrote:
At 02:23 PM 1/14/2005, Matthew Crocker wrote:
On Jan 14, 2005, at 8:36 AM, Rodney Dunn wrote:
Noel, Tom,
There are limitations on the 75xx's depending on the
RSP/VIP setup you have.
It's a distributed platform that does software
based forwarding when running in dCEF mode.
All packet are switched by the VIPs and never
touch the RP. Therefore the switching capacity
is a function of the speed of the VIPs and the
features you have enabled in the packet path
(ACL's, QOS, etc..).
Doesn't the RP handle the timing on the CyBus (1.2 gbps) and doesn't it
touch the packet when it travels between VIPs on different CyBUSes (7513
has 2)? Bus arbitration is done on the RP ?? The 7500 doesn't have CSC
card like the 12k series
My understanding is that, in a dCEF configuration, this is facilitated by
MEMD which is a memory buffer physically located on the RSP, but
that VIP use of MEMD is independent of the RSP CPU.
Regards,
_______________________________________________________________
Your Business Internet Service Provider
6 messages in net.nether.puck.cisco-nsp[c-nsp] Re: Cisco 7513 & Bandwidth Po...
