From: Jonathan V Hays (jhays@jtan.com)
Date: Tue Jun 10 2003 - 11:15:15 GMT-3
Dave,
I don't disagree.
My original point was - that's what the docs say, but CAR does not
complain if you just enable it without enabling CEF on my 2500, 2600,
and 3600 series routers. And others in this thread have had the same
experience.
So the question boils down to, does CAR really work or not, if you don't
enable CEF?
Jonathan
p.s. From the Cisco Press book "Enhanced IP Services for Cisco Networks"
[1999] by Donald C. Lee, page 169: "At the time of this writing, Cisco
Express Forwarding (CEF) must be enabled on VIP-equipped routers before
you can configure CAR. Other Cisco routers, such as the smaller access
rouers, might not need CEF configured ..."
p.s.s. See the example below where I configured CAR without CEF:
r4#show interfaces rate-limit
Serial0
Output
matches: all traffic
params: 8000 bps, 3000 limit, 4000 extended limit
conformed 0 packets, 0 bytes; action: transmit
exceeded 0 packets, 0 bytes; action: drop
last packet: 1334952ms ago, current burst: 0 bytes
last cleared 00:02:00 ago, conformed 0 bps, exceeded 0 bps
r4#show run
Building configuration...
00:21:15: %SYS-5-CONFIG_I: Configured from console by console
Current configuration : 1467 bytes
!
version 12.1
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r4
!
cns event-service server
!
interface Ethernet0
no ip address
shutdown
!
interface Serial0
ip address 10.1.1.1 255.255.255.252
rate-limit output 8000 3000 4000 conform-action transmit exceed-action
drop
!
interface Serial1
no ip address
shutdown
!
ip classless
ip http server
!
!
line con 0
exec-timeout 0 0
line aux 0
line vty 0 4
exec-timeout 0 0
!
end
r4#
> -----Original Message-----
> From: MADMAN [mailto:dave@interprise.com]
> Sent: Tuesday, June 10, 2003 9:36 AM
> To: Armand D
> Cc: Connie Nie; 'Jonathan V Hays'; ccielab@groupstudy.com
> Subject: Re: Question on IP CEF
>
> According to any docs I have seen you must enable CEF to run CAR:
>
http://www.cisco.com/en/US/customer/products/sw/iosswrel/ps1835/products
_tech_note09186a00800fb50a.shtml#prereq
Dave
David Madland
CCIE# 2016
Sr. Network Engineer
Qwest Communications
612-664-3367
"Government can do something for the people only in proportion as it
can do something to the people." -- Thomas Jefferson
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